UHDE GMBH Patent applications |
Patent application number | Title | Published |
20140044601 | PROCESS FOR THE PURIFICATION OF CRUDE GAS FROM SOLIDS GASIFICATION - A process and device is provided for the generation and purification of a crude gas for synthesis gas generation from a solid carbon-containing fuel by a coal gasification reaction. The fuel is mixed with a quenching medium directly after generation to dissipate the internal energy and is then brought into contact with a compound or a sorbent in the mixing chamber or downstream of the mixing chamber such that the acidic or basic or sulphur-containing or halogen-containing constituents contained in the crude gas and originating from the gasification reaction are absorbed. A solids-separating device removes the solid or solidified constituents from the system. The sorbent can be regenerated and returned to the process such that an energy-intensive cooling of the crude gas is not required for its purification and the synthesis gas thus purified can be used in a subsequent process without any further heating. | 02-13-2014 |
20130345486 | RECOVERY OF BENZENE AND BENZENE DERIVATIVES FROM GASOLINE FRACTIONS AND REFINERY STREAMS - A process for the separation of the aromatic compounds benzene, toluene and xylene from an aromatics-containing reformate gasoline and pyrolysis gasoline or a coke-oven light oil or an aromatics-containing refinery stream, in which the aromatics are separated by an extractive distillation uses a novel solvent combination made up of the compounds n,n′-diformyl piperazine or 2,2-bis-(cyanoethyl)ether in a combination with n-formyl morpholine as a second solvent for extractive distillation so that the solvent combination obtained shows a higher selectivity with regard to the aromatics to be extracted so that a lower solvent load is required. The aromatics-containing feed mixture is first submitted to a pre-distillation so that the obtained fraction has a narrow boiling point range. This fraction is then submitted to an extractive distillation in a first column, in which an aromatics-lean head product of predominantly paraffinic hydrocarbons is obtained as well as an aromatics-enriched bottom product. The bottom product is passed to a second column in which an aromatics-rich raffinate is obtained by reducing the pressure or increasing the temperature so that the extracting solvent combination obtained as bottom product can be recycled into the process. | 12-26-2013 |
20130248347 | Utilization of a coke oven featuring improved heating properties - A coke oven of a horizontal construction of the non-recovery or heat recovery type is shown. The oven has at least one coking chamber, in which laterally vertical downcomers as well as horizontal bottom flues extend underneath the coking chamber for indirect reheating of the coking chamber. At least a part of the interior walls of the coking chamber is configured as a secondary heating source by coating it with a high-emission coating (HEB) that shows an emission degree equal to or higher than 0.9, and consists of the substances Cr | 09-26-2013 |
20130228641 | Device for Slag Removal from a Coal Gasification Reactor - A device is disclosed for removing slag from a coal gasification reactor and to a slag water bath enclosed by the reaction vessel. The slag is discharged by means of a lock-type transfer vessel arranged downstream of the slag bath. The lock-type transfer vessel comprises one upper and one lower cylindrical section, the upper cylindrical section having a diameter larger than that of the lower cylindrical section and both sections being connected with each other via a tapered section which preferably is conical and the angle of the cone being similar to that of the angle of repose of the slag. Also disclosed is a process for removing slag from a coal gasification reactor and a slag water bath housed by the reaction vessel. The device permits a discharge of slag in a lock-type transfer vessel and precludes formation of slag incrustations in the lock-type transfer vessel. | 09-05-2013 |
20120111416 | METHOD FOR SUPPLYING AN ENTRAINED -FLOW GASIFICATION REACTOR WITH FUEL FROM A STORAGE CONTAINER - The goal of the invention consists in making available a method for supplying fuel to a pressurized gasification system, which ensures, in economically efficient manner, that the emission of pollutants from the coal transfer and the transport is minimized or completely avoided. This is achieved in that a gas that contains at least 10 ppm vol. CO is used for transfer and/or conveying, whereby a gas that contains oxygen is mixed into this gas, and that this gas mixture is heated to a temperature that oxidizes at least 10% of the pollutants contained in the gas. | 05-10-2012 |
20120103782 | REFRACTORY OVEN DOORS AND REFRACTORY OVEN DOOR FRAMING WALLS OF A COKE OVEN BATTERY - A heat-resistant door device for closing a horizontal coke oven chamber is made of a refractory material, using a material containing silica or a material containing silica and aluminum oxides, in particular. The material has a low temperature expansion coefficient and it is thermally well insulating so that the door is not deformed and/or distorted during the coal carbonization process. The door device is built of a coke oven wall mainly located above the door and embracing the door as well as of a mobile door located underneath. Thereby less cold ambient air enters into the coke oven chamber and radiation losses are minimized. The door may be comprised of an ellipsoidal bulge by, which the coke can be better pushed into the coking chamber. The oven wall embracing the oven door can also be made of a refractory material containing silica or of a material containing silica and aluminum oxides. | 05-03-2012 |
20120067776 | PROCESS FOR THE RECOVERY OF PURE AROMATICS FROM HYDROCARBON FRACTIONS CONTAINING AROMATICS - A process for the recovery of a pure aromatics-containing product is disclosed. This product is obtained by extractive distillation of a gasoline rich in aromatics, in which olefins, diolefins and polyolefins are separated, and this extractive distillation is followed by a hydrogenation of the recovered aromatics-rich, olefin-lean product stream, in which the alkylated aromatics, especially toluene and xylene, are dealkylated and the paraffinic dealkylation products further converted into methane so that a significant portion of hydrogen can be saved by carrying out the hydrogenation subsequent to the extractive distillation, as the aromatics mixture is then free of olefins and no hydrogen is required for an olefin hydrogenation, with extractive distillation and recovery of the extracting solvent taking place in one column. An apparatus for carrying out the process described is also disclosed. A column is preferably used for the extractive distillation which allows performing the extractive distillation with a solvent recycling system so that it is not required to provide an additional stripping column for removing the extracting solvent. | 03-22-2012 |
20120060824 | METHOD AND APPARATUS FOR A CONSTANT STEAM GENERATION FROM THE WASTE HEAT OF AN ALKANE DEHYDROGENATION - The invention relates to a process and a device for an as constant as possible supply of steam flow from an alkane dehydrogenation, the process being carried out by passing a hydrocarbonaceous gas through reaction tubes loadable with a catalyst, and the reaction tubes, which are sealed towards the outside, running through a heating chamber which is heatable by means of burners, and the catalyst being regenerated for the reaction in a cyclic operating mode, in which the reaction is endothermic and the regeneration of the catalyst non-endothermic, and the capacity of the main burners is reduced during the regeneration of the catalyst, in which auxiliary burners, which serve to keep up the production of hot flue gas during the regeneration of the catalyst, are installed at the inlet of the flue gas duct to produce additional hot flue gas which is used for generating an as constant as possible amount of steam from the waste heat of the process. | 03-15-2012 |
20120058015 | DEVICE FOR INFLUENCING THE FLOW IN A CONNECTING PIPE OF A COAL GASIFICATION REACTOR/GAS COOLER - With a device for influencing the flow, particularly in a horizontal connecting pipe ( | 03-08-2012 |
20120055353 | METHOD FOR COMPACTING COAL IN A MANNER SUITABLE FOR COKE OVEN CHAMBERS - A method for compacting coal in a manner suitable for coke oven chambers is disclosed. The coal is initially compressed by means of a suitable compressing device into one or more coal cakes, and the obtained coal cakes are divided into compacted products by a cutting device. The compacted products are stacked on top of the each other such that they can be loaded into a coke oven chamber for coking. The compacted products enable the coke oven chambers to be loaded in a precise and a coal loss-free manner. The coal compacted products are easy to store. | 03-08-2012 |
20120055087 | METHOD AND APPARATUS FOR THE UTILIZATION OF THE ENTHALPY OF A SYNGAS BY ADDITIONAL AND POST-GASIFICATION OF RENEWABLE FUELS - A process for the generation of a syngas in an entrained-flow gasification process includes a solid, carbon-containing fuel which is introduced via burners into a reactor which also supplies the oxygen for gasification. The fuel is introduced on a burner level where the burners are arranged concentrically around the reaction chamber or in the head area. The syngas obtained is discharged from the reaction chamber via a discharge nozzle, so that the syngas is passed into a collecting chamber for cooling by addition of low-temperature gaseous, vaporous or liquid cooling agents. A quench chamber is provided between the reactor and the collecting chamber. Additional burner levels are in the quench chamber via which a fuel material of renewable fuels or biofuels is introduced into the syngas, so that the heat enthalpy of the syngas can be utilized for the endothermic gasification reaction of the biological raw material. An apparatus for this generation of synthesis gas includes several burner levels, the renewable fuel being supplied to the gasification chamber with or without water vapour or oxygen and the enthalpy of the hot syngas being utilized for the gasification of the renewable fuel. | 03-08-2012 |
20120039775 | CATALYST-COATED SUPPORT, METHOD FOR PRODUCING THE SAME, REACTOR COMPRISING THE SAME AND USE THEREOF - Supports having a catalytic coating comprising at least one porous and cavity-containing catalyst layer are described, cavities being irregular spaces having dimensions greater than 5 μm in at least two dimensions or having cross-sectional areas of at least 10 μm | 02-16-2012 |
20120009108 | Combined Waste Gas Treatment Of Waste Gas Streams Containing Ammonia And Nitrogen Oxides In Industrial Plants - Combined removal of both ammonia from an ammonia-containing waste gas and nitrogen oxides from a nitrogen oxide-containing waste gas in a combined ammonia/urea synthesis plant is accomplished by mixing the gases and employing one or both of selective non-catalytic reduction at a temperature of 850° C. to 1100° C. or selective catalytic reduction at a temperature of 150° C. to 550° C., in which the ammonia and the nitrogen oxides react with one another to give nitrogen and water, the ammonia-containing waste gas derived from a low-pressure and/or atmospheric absorber of the urea synthesis plant, and the nitrogen oxide-containing waste gas derived from a flue gas duct of a primary reformer of the ammonia synthesis plant, both the ammonia and the nitrogen oxides of the mixed waste gas flows being depleted simultaneously during the same process step. | 01-12-2012 |
20120006668 | COKING PLANT WITH FLUE GAS RECIRCULATION - Improvement in carbonization in a carbonization furnace and simultaneous reduction in NO | 01-12-2012 |
20110315538 | DEVICE AND METHOD FOR DOSING OR SHUTTING OFF PRIMARY COMBUSTION AIR IN THE PRIMARY HEATING ROOM OF HORIZONTAL COKE-OVEN CHAMBERS - Dosed proportioning and cutoff of combustion air into the primary heating space of a horizontal coke oven is provided by apertures in the ceiling of the coke oven chamber, the apertures covered with a withdrawable cover device which controls the amount of air admitted, manually or in an automatic mode. By way of this device, ventilation of a coke oven chamber with primary air can be so controlled that primary air is introduced in an exactly dosed manner and, depending on its place of installation, exactly distributed into the primary heating space of a coke oven chamber. | 12-29-2011 |
20110314727 | METHOD FOR PRODUCING SINGLE COAL COMPACTS SUITABLE FOR COKE CHAMBERS - Coal compacts which are suitable for coking in coke oven chambers are prepared by pressing and compacting coal in a pressing device having a design which shapes the surface of the coal compacts to provide higher surface area. Already compacted coal blocks can be pressed to generate the surface shape. The resulting coal compacts exhibit significantly improved properties during the coking process, resulting in improved gas and heat exchange. A device for compacting coal preferably contains a plate provided with shaping elements on the pressing surface. | 12-29-2011 |
20110301392 | VARIATION OF TIN IMPREGNATION OF A CATALYST FOR ALKANE DEHYDROGENATION - A catalyst for the dehydrogenation of alkanes or alkyl substituents of hydrocarbons, is a shaped body having at least one oxide from the elements of the main or secondary group II to IV of the periodic table or of a mixed oxide thereof serving as base material of the shaped body. The catalyst further contains an additional constituent which is an oxide of an element of the main group IV of the periodic table, added during the shaping process. A platinum compound and a compound of an element of the main group IV of the periodic table is used as a surface constituent of the catalyst. The invention further relates to the production of the catalyst and to a method for the dehydrogenation of alkanes using the catalyst. | 12-08-2011 |
20110296995 | DEVICE FOR REMOVING FINE-GRAINED OR DUST-LIKE SOLIDS FROM A CONTAINER - With a device for removal of fine-grained or dust-like solids from a container that is to be pressurized or is pressurized, whereby the container is equipped with a double-walled discharge cone or funnel, a solution is supposed to be created with which the use of porous materials, such as sintered metals or the like, in particular, is avoided, while making available good conveyance properties in the transfer funnel, without restricting the grain sizes of the material, in each instance, whereby even particle-charged gas can be used for conveyance. This is achieved in that the gas exit openings are larger than the largest particles of the solid to be removed, and that the gas exit openings ( | 12-08-2011 |
20110284673 | Slag Discharge Device of a Coal Gasification Reactor - A device is disclosed for removing slag from a coal gasification reactor and to a slag water bath enclosed by the reaction vessel. The slag is discharged by means of a lock-type transfer vessel arranged downstream of the slag bath. The lock-type transfer vessel comprises one upper and one lower cylindrical section, the upper cylindrical section having a diameter larger than that of the lower cylindrical section and both sections being connected with each other via a tapered section which preferably is conical and the angle of the cone being similar to that of the angle of repose of the slag. Also disclosed is a process for removing slag from a coal gasification reactor and a slag water bath housed by the reaction vessel. The device permits a discharge of slag in a lock-type transfer vessel and precludes formation of slag incrustations in the lock-type transfer vessel. | 11-24-2011 |
20110280779 | REMOVAL OF AMMONIA NITROGEN, AMMONIUM NITROGEN AND UREA NITROGEN BY OXIDATION WITH HYPOCHLORITE-CONTAINING SOLUTIONS FROM EXHAUST AIR IN PLANTS FOR PRODUCING AMMONIA AND UREA - Process for scrubbing out ammonia nitrogen and/or ammonium nitrogen and/or urea nitrogen from exhaust gases enriched with these nitrogen compounds in plants for producing ammonia or urea, wherein the nitrogen compounds first form with a hypochlorite-containing solution in a scrubber an intermediate which under acidic or neutral reaction conditions is reacted to form elemental nitrogen and salt, and the reaction of the nitrogen compounds to form elemental nitrogen and salt proceeds in a pH range of 4 to 6. | 11-17-2011 |
20110277962 | PRODUCTION OF PROCESS GAS BY HEAT RECOVERY FROM LOW-TEMPERATURE WASTE HEAT - Process for heat utilization in steam reforming, having a high-temperature conversion unit, a first heat exchanger, boiler feed water preheater, product condensate heat exchanger, and low-pressure evaporator, a cooling section, in which the process gas is further cooled and a condensate stream is generated and the resultant process gas is passed through at least one unit for further processing. Wherein a first part of the boiler feed water stream is passed into the low-pressure evaporator, and the low-pressure steam generated is divided and a first substream of the low-pressure steam is conducted into the water treatment unit for heat transfer and a second substream of the low-pressure steam is passed to at least one consumer. A second part of the boiler feed water stream is passed via a heat exchanger and one or more boiler feed water preheaters and finally passed for steam generation. | 11-17-2011 |
20110277673 | METHOD AND SYSTEM FOR HOMOGENIZING THE DELIVERY OF FUELS IN A GASIFIER FOR GENERATING SYNGAS - A method and a system for uniformization and regulation of the solid fuels pneumatically conveyed using dense-stream conveying, into a gasifier for the production of synthesis gas, is supposed to be configured in such a manner that clearly homogenized feed of the coal to the burner is made possible, whereby the short-term fluctuations are minimized and thus the gasification quality is improved, and regulation of the amounts of coal to the burner is structured to be more effective. This is achieved in that the fine-grain to dust-type fuel is first conveyed out of a feed container positioned below the burner level, to a level above the burner level, and subsequently homogenized in a line that is directed downward toward the burner. | 11-17-2011 |
20110277635 | METHOD FOR DISCHARGING THE DUST THAT OCCURS DURING OPERATION OF A DEDUSTING SYSTEM FOR RAW GAS - A method for discharging the dust that occurs from pressurized gasification, using a dust precipitator having at least one discharge container assigned to it, is supposed to be configured in such a manner that nitrogen introduction into the raw gas is minimized or completely avoided, in order to free subsequent chemical syntheses from introduction of nitrogen, if at all possible, right from the start. This is achieved in that filter elements are positioned in the dust precipitator, which elements are back-flushed by means of a gas that contains carbon dioxide or pure CO | 11-17-2011 |
20110253521 | METHOD FOR A CYCLICAL OPERATION OF COKE OVEN BANKS COMPRISED OF" HEAT RECOVERY" COKE OVEN CHAMBERS - A method for cyclical operation of a coke oven facility which includes an even number of coke oven banks which in turn include an even number of coke oven chambers is shown. Located downstream of the coke oven banks are boiler facilities which drive turbines with the hot waste gases from the coke oven banks. Energy is recovered in this manner. The coke oven chambers are pushed and charged in an exactly determined cycle so that the production of hot waste gas over the temporal mean can be homogenized. | 10-20-2011 |
20110248513 | METHOD FOR USE OF THE SYNTHESIS GAS THAT COMES FROM A GASIFIER - A synthesis gas (H | 10-13-2011 |
20110233471 | METHOD AND SYSTEM FOR SUPPLYING A REACTOR FOR GENERATING CRUDE SYNTHESIS GAS - Using a method for supplying a reactor ( | 09-29-2011 |
20110217219 | SCRUBBING SOLUTION CONSISTING OF AQUEOUS AMMONIA SOLUTION AMINES FOR THE SCRUBBING OF GAS AND USE OF SUCH SOLUTION - The invention relates to a process using a solvent combination for the gas scrubbing of industrial gases in order to separate acid gases, particularly including carbon dioxide and hydrogen sulphide. The inventive solvent combination consists of a solution of amines in water, said solution containing ammonia for improving the absorption of CO | 09-08-2011 |
20110198206 | AIR PROPORTIONING SYSTEM FOR SECONDARY AIR IN COKE OVENS DEPENDING ON THE VAULT VS. SOLE TEMPERATURE RATIO - A device for proportioning of secondary combustion air into the secondary air soles of coke oven chamber ovens is shown. The device is formed by a slide gate or a parallelepiped device or by plates moved by means of a thrust bar, the thrust bar being moved longitudinally in parallel to the coke oven chamber wall so that the plates move away from the secondary air apertures and open or close these. The thrust bar is moved by means of a positioning motor, with the power transmission being effected hydraulically or pneumatically. Via suitable measuring parameters, it is thus possible to optimize secondary heating so that heating is provided evenly from all sides, thus achieving an improvement in coke quality. | 08-18-2011 |
20110195008 | DESULFURIZATION PROCESS - The invention relates to a desulfurization process, wherein a gas mixture is subjected to a separation process to separate the acidic components of the gas, an acid gas containing carbon dioxide and sulfur compounds, in particular hydrogen sulfide, being formed in this process, the acid gas being sent to a Claus plant for separation of elemental sulfur, and the residual gas leaving the Claus plant being subjected to a further separation, in which the water formed in the Claus process is at least partially removed, only technically pure oxygen being supplied as the oxygen-containing reaction gas to the Claus plant, and carbon dioxide in a purity which allows direct sequestration or industrial utilization being removed downstream from the Claus plant. | 08-11-2011 |
20110192395 | AIR DISTRIBUTING DEVICE FOR PRIMARY AIR IN COKE OVENS - A device for directed introduction of primary combustion air into the primary heating space of a coke oven chamber is shown. Primary air is admitted through entry ports in the top of a coke oven chamber or in the frontal coke oven chamber walls above the coke oven chamber door or in the coke oven chamber door or in several or all of the mentioned positions These entry ports have inserts that are equipped with oven-inwardly directed spouts, with the spouts having an opening-outwardly directed angle through which primary air is conducted at a chamfered angle onto the coke cake so that the primary air from the opening ports in the coke oven chamber top streams to the coke oven at an angle of less than 90° and primary air from the opening ports in the coke oven chamber wall above the coke oven chamber door or in the coke oven chamber door streams to the coke oven at an angle of greater than 0°. Also shown is a method for a directed introduction of primary air with the described device. By implementing this method, the mixing of coking gas and primary air in the primary heating space can be improved substantially. | 08-11-2011 |
20110192329 | METHOD AND INSTALLATION FOR THE UNINTERUPTED SUPPLY OF A GASIFICATION PLANT WITH FUEL - With a method and a system for interruption-free fuel supply to a gasification system for the production of crude synthesis gas, whereby the fuel is passed from a fuel reservoir to a grinding/drying system, subsequently the resulting fuel dust is passed to a fuel storage container, from there to a dust feed container, and finally, to the gasifier, by way of transport means, the system availability is supposed to be increased, and, at the same time, the storage capacities are supposed to be minimized, in order to thereby particularly achieve a cost reduction. This is achieved in that the fuel in the form of dust is passed to the storage container from at least two grinding/drying systems, by way of transport means, whereby at least one of the transport means, as a dust transport device, is acted on by at least two grinding/drying systems. | 08-11-2011 |
20110183276 | DEVICE AND METHOD FOR THE DEGASSING OF DUSTS - An apparatus for the degassing of a dust from a synthesis gas produced by a gasification process, is disclosed. The apparatus comprises a main dust separator, a multi-purpose vessel, fluid for degassing and cooling and a storage facility for dust. The synthesis gas produced is conducted via a connecting pipe to a main dust separator, from which a de-dusted raw synthesis gas stream and a dust-like solid which also contains raw synthesis gas in the voids between the dust particles can be removed. The dust-like solid is directed into a multi-purpose vessel equipped with devices for reducing the pressure level so that a tail gas is obtained and a solid containing lower gas quantities in the void fraction remains. There is a device for transporting a solid into a gas exchange apparatus, the latter comprising a gas exchange tank, a dust separator and a feed device for exchange gas. It is possible to reduce the gas exchange tank to atmospheric pressure. The gas exchange apparatus has an outlet for a solid that has been at least partially liberated from raw synthesis gas, said apparatus having an upwards-oriented conveyor in which an upwards-directed gas and solids stream can be established. The conveyor has an open cross-section, a bottom clear opening and a top clear opening. A feed device for exchange gas which is directed into the bottom clear opening is positioned underneath the bottom end of the conveyor. The dust separator has a discharge device for a tail gas stream and a downwards-directed connection into the gas exchange tank for a solid liberated from raw synthesis gas. | 07-28-2011 |
20110183275 | METHOD AND DEVICE FOR IGNITING AND OPERATING BURNERS WHEN GASIFYING CARBON-CONTAINING FUELS - With a method and a device for igniting and operating burners when gasifying a carbon-containing fuel using at least two gasification burners, start of the pressure gasification with short start times is made possible, at high pressures, without prior inertization of the gas space, while avoiding continuous fuel gas consumption in the pilot burner or ignition burner and also protecting stationary ignition burners against contamination by configuring one gasification burner as a start-up burner, which is ignited by at least one pilot burner using an electrical ignition device. A combustible gas mixture including a fuel gas and oxygen-containing gas is ignited by the pilot burner, in the start-up burner. After ignition of the start-up burner, at least one further gasification burner is ignited by this burner. The start-up burner is operated further as one of the gasification burners of the carbon-containing fuel via a change in medium. | 07-28-2011 |
20110179713 | DEVICE FOR GASIFICATION OF CARBONACEOUS FUELS - In the case of a device for gasification of carbonaceous fuels, having a discharge for slags into a slag bath, a solution is supposed to be created with which the gasifier discharge opening is reliably kept at a temperature that guarantees that the slag will flow out. This is achieved in that the gasifier discharge opening ( | 07-28-2011 |
20110178345 | METHOD FOR UTILIZATION OF THE REACTION HEAT THAT OCCURS IN THE PRODUCTION PROCESS OF 1,2-DICHLOROETHANE FROM ETHYLENE IN A FLUIDIZED BED REACTOR - With a method for utilization of the reaction heat that occurs in the production of 1,2-dichloroethane from ethylene, by reaction with oxygen and hydrochloride (oxychlorination), in a fluidized bed reactor, with dissipation of this reaction heat through cooling pipe bundles situated within the reactor, positioned in the fluidized bed, utilization of the heat is supposed to be improved, while simultaneously reducing the size of the corresponding system elements. This is achieved in that part of the reaction heat is dissipated by heating boiler feed water, whereby the heated boiler feed water is used to heat heat sinks in the production process. | 07-21-2011 |
20110173886 | HOT GAS PURIFICATION - With a method and a system for treatment of a hot crude gas generated by an entrained flow gasification system, removal of the compounds that contain sulfur and carbon is supposed to be undertaken in such a manner that hot gas is made available for further use. This is achieved in that a desulfurization ( | 07-21-2011 |
20110168648 | GASIFICATION APPARATUS WITH CONTINUOUS SOLIDS DISCHARGE - A process for the discharge of slag and ash from a gasification reactor is disclosed. These solids are directed from the gasification reactor into a water bath housed with the gasification reactor in a pressure vessel. There are at least two lock hoppers underneath the water bath which are fed with a stream of water/solids via a pipe and a flow divider element, it being possible to supply the lock hoppers individually and in a controlled manner with a stream of water/solids via shut-off devices. The filling is performed in a manner that encourages the sett-ling process by withdrawing a stream of liquid from the lock hopper being filled, the filling time being controlled so as to prevent the solids settling above the valves and lock hoppers. Also disclosed is an apparatus with at least two lock hoppers underneath the water bath of a gasification reactor, there being, in an advantageous embodiment, a flow divider element and shut-off devices between the water bath and the lock hoppers. | 07-14-2011 |
20110155957 | SYSTEM FOR SYNTHESIS GAS PRODUCTION - With a system for synthesis gas production, having a reactor as well as a gas cooler/purifier connected with it in terms of flow, a solution is supposed to be created, with which the most compact possible connection between reactor, on the one hand, and the gas cooler or purifier, on the other hand, is made possible, whereby heat expansions that occur due to different temperatures are absorbed. This is accomplished in that the connection between reactor ( | 06-30-2011 |
20110154736 | SLAG DISCHARGE FROM REACTOR FOR SYNTHESIS GAS PRODUCTION - With a method for discharging slag from a water bath of a reactor for synthesis gas production, whereby the slag is brought to a lower pressure level by means of a transfer container, a solution is supposed to be created, with which the components connected with transferring the slag out are subject to a low temperature, whereby immediate slag transfer without water exchange is supposed to be made possible, with a minimal required cooling power. This is accomplished in that a cooling water stream is passed to the slag stream in the outlet region of the slag from the water bath of the gas generator or the pressurized container that surrounds it, in a region having a greater cross-section than the cross-section of the entry connector of another system part, such as, for example, the transfer container, in such a manner that temperature stratification in the outlet region is made possible. | 06-30-2011 |
20110144400 | HIGHLY POROUS FOAM CERAMICS AS CATALYST CARRIERS FOR THE DEHYDROGENATION OF ALKANES - The invention relates to a material which is suited as a carrier for catalysts in the dehydrogenation of alkanes and in the oxidative dehydrogenation of alkanes and which is made of an oxide ceramic foam and may contain combinations of the substances aluminium oxide, calcium oxide, silicon dioxide, tin oxide, zirconium dioxide, calcium aluminate, zinc aluminate, silicon carbide, and which is impregnated with one or several suitable catalytically active materials, by which the flow resistance of the catalyst decreases to a considerable degree and the accessibility of the catalytically active material improves significantly and the thermal and mechanical stability of the material increases. The invention also relates to a process for the manufacture of the material and a process for the dehydrogenation of alkanes by using the material according to the invention. | 06-16-2011 |
20110133126 | VERTICAL CYLINDRICAL REACTOR WITH THIN CATALYST BED - An axial thin-film reactor for carrying out catalytic reactions in the gas phase, comprising a cylindrical pressure casing, a device for letting in a gaseous reactant stream, a device for letting out a gaseous product stream, a device for receiving a catalyst bed arranged vertically in the reaction chamber and isolated from the reactor wall at the sides and at the ends so as to produce two separate chambers for the gaseous reactant stream and the gaseous product stream that are sealed with respect to one another and have two gas-permeable bounding walls arranged plane-parallel to one another. The device is designed in such a way that it has a height-to-thickness ratio greater than 1 and the catalyst bed has a height-to-thickness ratio greater than 1. | 06-09-2011 |
20110132241 | SLAG RUNNER ON BURNERS FOR PROTECTION AGAINST DRIPPING SLAG - With a slag runner on burners or burner niches for protection against dripping slag, which occurs during the gasification of fine-particle fuels that contain ash, within a gasifier, reliable protection of the burner exits or the burner niches to prevent them from becoming clogged with slag is supposed to be made available. This is achieved in that the slag runner ( | 06-09-2011 |
20110120139 | MODIFIED GAS AND STEAM TURBINE PROCESS WITH INTEGRATED COAL GASIFICATION UNDER PRESSURE - A process for the production, treatment and combustion of synthesis gas for the purpose of generating electric power is disclosed. The synthesis gas is produced from a solid, carbon-containing fuel with the aid of an oxygen-containing gas and treated by a slag-separating device and a device separating alkalis. Subsequently, the synthesis gas produced is fed to an expansion turbine where the pressure energy is used for generating power. On account of the treatment and separation of alkalis the expansion turbine is protected from corrosion and mechanical impact. The expanded synthesis gas is then burnt under pressure and the combustion is used in a combined-cycle process using a gas turbine, steam generator and steam turbine for generating power. The process thus has an increased efficiency. Apparatus for use of the process is also described. | 05-26-2011 |
20110120127 | LOW ENERGY PROCESS FOR THE PRODUCTION OF AMMONIA OR METHANOL - A process for utilizing synthesis gas heat for the generation of supercritical steam in a low energy ammonia or methanol plant is disclosed. The process involves a reforming or partial oxidation stage, at least one supercritical steam generator having a shell side and a tube side, at least one superheater, at least one back pressure turbine, at least one extraction and condensing turbine, and at least one boiler feedwater pump. The synthesized synthesis gas is sent to the shell side of the supercritical steam generator, and the supercritical steam generator is fed with pressurized feedwater. The feedwater flow is adjusted to maintain the steam temperature at the exit of the supercritical steam generator in the range of 375-500° C. The supercritical steam is generated in the supercritical steam generator at a pressure of 225-450 bar, the supercritical steam is further heated in a superheater to a temperature of 500-750° C., and the supercritical steam generated in the superheater is fed to a back pressure turbine. | 05-26-2011 |
20110114291 | METHOD AND REACTORS FOR GASIFICATION OF FUELS IN THE FORM OF DUST, SOLIDS, OR LIQUIDS, SUCH AS COAL, PETROLEUM COKE, OIL, TAR, OR THE LIKE - With a method for cooling units subjected to stress at high temperatures, in cooled reactors for gasification of fuels that contain carbon, using gasification media that contain oxygen, whereby the reactor walls are cooled by way of a coolant circuit, penetration of substances from the reactor into the cooling circuit in the event of possible leaks is supposed to be reliably prevented. This is achieved in that the units to be cooled, such as, for example, gasification burners, burner muffles, or the like, are equipped with an independent cooling circuit, whereby this cooling circuit is directly connected with the main cooling circuit. | 05-19-2011 |
20110089117 | REMOVAL OF SILICON FROM BRINE - A process for removing silicon compounds from aqueous NaCl brine includes, first, adjusting a weak brine to a pH value of less than 3 with hydrochloric acid. Iron(III) chloride or other trivalent iron ions are added to the acidified weak brine, the obtained weak brine is then continuously fed to a stirred dissolution vessel which contains undissolved salt in addition to brine. Fresh salt is charged batchwise and intermittently to the dissolution vessel to produce strong brine. The obtained strong brine is fed to a stirred buffer vessel, the pH value in this buffer vessel being maintained at a level ranging from 5 to 8. A strong-brine flow is continuously withdrawn from the buffer vessel and filtered, and the filtrate containing the added iron and silicon is discharged. Also a system for carrying out this process includes: a dissolution vessel for salt, a stirrer in the dissolution vessel, a feed device for batchwise feeding salt to the dissolution vessel, a point for feeding weak brine to the dissolution vessel, points for feeding hydrochloric acid and iron(III) chloride to the weak brine supply line, a buffer vessel for strong brine, a stirrer in the buffer vessel, a flow connection between the dissolution vessel and the buffer vessel, a filter having an outlet for strong brine and a withdrawing device for filter cake, a discharge port and a device for conveying strong brine from the buffer vessel to the filter. | 04-21-2011 |
20110061529 | PROCESS AND DEVICE FOR THE SEPARATION OF FOREIGN GASES FROM A REDUCING USEFUL GAS BY STEAM-DRIVEN PRESSURE SWING ADSORPTION - A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation of steam. The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle. Also disclosed is a device for running this process. | 03-17-2011 |
20110058991 | GASIFICATION DEVICE WITH SLAG REMOVAL FACILITY - A device for the gasification of liquid or fine-grain solid fuel materials in an entrained bed reactor, at temperatures above the ash melting point and at a pressure of 0.3 to 8 MPa, including a gasification reactor and a water bath being arranged in a pressure vessel. The water bath being installed below the gasification reactor and the a/m gasification reactor being designed in such a manner that the synthesis gas produced is withdrawn in the upper section of the reactor, the liquid slag precipitating on the walls of the reactor chamber and then having a free downflow, without any solidification of the surface of the said slag. The lower side of the reaction chamber has an outlet opening with a drop-off edge so that the downstream of liquid slag can freely fall from the drop-off edge. A slag removal duct is arranged below the opening and reaches down into the water bath, the upper wall section of the slag removal duct is penetrated by a cooling agent and the internal side of the duct is completely lined with a temperature-resistant insulating compound. The lower section of the slag removal duct which reaches down into the water bath is wetted by a water film on the internal side, the upper and lower sections being connected with each other in such a manner that the water film of the upper wall section does not come into contact with the wall section penetrated by a cooling agent nor with the insulating compound. | 03-10-2011 |
20110058905 | DEVICE FOR DISCHARGING A SOLID MATERIAL FROM A CONTAINER - With a device for discharge, particularly of a very fine-grained solid material or solid material mixture, from a container having a discharge funnel in the direction of gravity, underneath the main container part, a solution is to be created, with which the disadvantages of double-wall cone designs, particularly also at high system pressures, are avoided, with a simple, versatile design. This is achieved in that a part ( | 03-10-2011 |
20110048917 | CONTROLLABLE AIR DUCTS FOR FEEDING OF ADDITIONAL COMBUSTION AIR INTO THE AREA OF FLUE GAS CHANNELS OF COKE OVEN CHAMBERS - A device for feeding and controlling secondary air from secondary air ducts into flue gas channels of horizontal coke oven chambers is shown. The flue gas channels are located underneath the coke oven chamber floor on which coal carbonization is realized. The flue gas channels serve for combustion of partly burnt coking gases from the coke oven chamber. The partly burnt gases are burnt with secondary air, thus heating the coke cake also from below to ensure even coal carbonization. Secondary air comes from the secondary air ducts connected to atmospheric air and to the flue gas channels. Controlling elements are mounted in the connecting channels between the flue gas channels and secondary air ducts which can precisely control the air flow into the flue gas channels. Thereby, it is possible to achieve a much more regular heating and heat distribution in coke oven chambers. The actual controlling devices in the connecting channels can be formed by turnable pipe sections, wall bricks, or metal flaps. It is particularly advantageous to utilize a hump-like facility (tabouret) which sits in the secondary air ducts and which is comprised of a tabouret plate with a central opening that is slid under the corresponding embranchment to regulate the gas stream. The controlling mechanism can be actuated manually, electrically, or pneumatically. Thereby, the controlling device can also be automated. | 03-03-2011 |
20110041550 | PROCESS AND APPARATUS FOR THE SEPARATION OF LIGHT-BOILING COMPONENTS FROM HYDROCARBON MIXTURES - A process and apparatus for the separation of a feed mixture into higher-boiling and lower boiling fractions in a continuously operated distillation apparatus uses at least one inlet pipe for feeding feed mixtures, an outlet for the lower-boiling fraction, an outlet for the higher-boiling fraction and a heating device. The distillation apparatus includes at least two condensation stages, each of a different temperature level, the condensation stages upstream in direction of the vapour flow having a higher temperature level than the downstream stages. Separation-effective internals are installed between the condensation stages, partial condensation taking place in the condensation stages, partial amounts that have not condensed in these stages being fed to downstream separation-effective internals or condensation stages of lower temperature level and partial amounts that have condensed are passed via separation-effective internals in direction of the outlet means for the higher-boiling fraction. A basically vaporous fluid is obtained at the condensation stage of the lowest temperature level, where it partially condenses, the uncondensed part of the fluid being fed to the outlet for the lower-boiling fraction and the condensed part being passed to a section of the distillation apparatus which is upstream of the condensation stage having the lowest temperature level. The condensation stage of the lowest temperature level having a temperature of below −40 ° C. | 02-24-2011 |
20110027050 | DEVICE FOR COKE OVEN CHAMBER PUSHING LOW IN HEAT EXCHANGE - A device for pushing the contents of a coke oven chamber includes a pusher ram head with pusher rams mounted there behind, wherein guiding plates or aprons are mounted to a pusher ram head which avoid a simultaneous pressing-in of air into the coke oven chamber, thus preventing a non-desired cooling-off of the coke oven chamber during pushing. The aprons also prevent the pusher ram and the rearward side of the pusher ram head from excessive heat burdens. The aprons can also serve for protecting measuring devices mounted in the enclosure. The aprons can be fabricated from a heat-resistant metallic or ceramic material. The aprons or the pusher ram head can also be provided with a heat-resistant or heat-reflecting coating or with heat-resistant or heat-reflecting tiles. Also shown is a method for pushing of coke oven chambers by applying the inventive device. | 02-03-2011 |
20110023860 | MECHANISM FOR THE AUTONOMOUS LATCHING OF COKE OVEN CHAMBER DOORS FOR HORZONTAL COKE OVEN CHAMBERS - A device for latching of horizontal coke oven chambers which is triggered by an auxiliary frame located on the coke oven chamber door is provided. The auxiliary frame is restrictively movable in vertical direction on the coke oven chamber door. During the outward movement, the auxiliary frame hits upwardly against limit stop cams firmly mounted on the oven door and transmitting the vertical traction force onto the coke oven chamber door. During the upward movement, the auxiliary frame actuates levers which are rotationally movable to an axis arranged orthogonally to the coke oven chamber and which are connected to a translatorily freely movable latch. On actuation of this lever, it pulls the latch from the latch take-up bearings mounted on the coke oven chamber door so that the coke oven chamber door is unlatched and opened. In an embodiment of the present invention, the coke oven chamber door can be arrested in the open or closed position with a device suitable for this purpose. | 02-03-2011 |
20110017786 | METHOD AND DEVICE FOR METERED REMOVAL OF A FINE-GRAINED TO COARSE-GRAINED SOLID MATERIAL OR SOLID MATERIAL MIXTURE FROM A STORAGE CONTAINER - The invention relates to a method and a device for the metered removal of a fine to coarse-grained solid matter or a solid matter mixture from a storage container, comprising a device for forming a fluidized bed in the discharge region or in a metering chamber of the metering container, wherein fluidization that is as optimal as possible is to be created in the lower region of such a receiving or metering container while avoiding any additional systems, mechanical elements, or extensive installations. This is achieved according to the method in that a gas is additionally introduced in the region of the metering chamber bottom for forming a fluidized bed that loosens the solid matter, and a gas is introduced via swirl nozzles for bringing about the rotation of the fluidized bed. | 01-27-2011 |
20110010992 | DEVICE FOR PRODUCTION OF SYNTHESIS GAS WITH A GASIFICATION REACTOR WITH A SUBSEQUENT QUENCHING SPACE - The invention relates to a device for producing a crude gas containing CO or H | 01-20-2011 |
20110000779 | METHOD AND DEVICE FOR TREATMENT OF FLUID STREAMS THAT OCCUR DURING GASIFICATION - A method and a device for treating fluid streams produced during the combustion of carbon- and ash-containing fuels optimally uses the heat content contained in the system, as well as the amount of water for cooling and condensation required during recirculation of the latter. Suspension withdrawn from the mixing vessel is expanded in at least one subsequent stage during the evaporation of at least part of the water and reduction of the temperature, The vapor produced is cooled by direct contact with water and at least partially condensed out. In the device, a line between a lower section of the mixing vessel leads to a first expansion vessel that is designed as a scrubber tower, the scrubber tower being provided with a condensate collection bottom and a recirculation line towards the mixing vessel for the forming condensate, which mixing vessel is equipped with spray heads. | 01-06-2011 |
20100316540 | FIXING DEVICE FOR CATALYZER PARTICLES - With the help of a fixing device for catalyzer particles, wherein the catalyzer particles are packed in a bed which can be passed through by a gas flow in the direction of gravity, it is intended to achieve a minimum specific pressure loss which will remain low even if dirt should arise from the operating process; a fixing device which has a minimum influence on the period of presence of the gas flowing through; which ensures the reliable hold-down of the catalyzer particles even at high approach velocities; and which is flexible to a certain degree in order to adapt to bed changes. | 12-16-2010 |
20100294697 | PROCESS FOR THE DESULPHURISATION OF OLEFIN-CONTAINING FEED GASES - A process and a device for the hydrodesulphurisation of an olefin and hydrogen-containing feed gas utilizes a feed gas which can be mixed with further hydrogen and subdivided into at least two feed streams. The first feed stream is introduced separately into the reactor and is passed through a first catalyst bed which contains the catalyst pellets deposited on a suitable support or grid. The feed stream is heated in the hydrogenation reaction. Downstream of first catalyst bed, further feed gas is supplied which serves to cool the reaction gas permitting that the gas can then be passed through a second catalyst bed. Downstream of the second catalyst bed there may be further catalyst beds and further feed gas supply devices. The catalyst beds can be provided in the reactor in any number, type and shape. These process conditions ensure that a product gas be obtained which essentially contains no other sulphur compound than hydrogen sulphide. | 11-25-2010 |
20100273224 | PRODUCTION OF LACTIC ACID BY WAY OF FERMENTATION AND EXTRACTION OF AMINES - The invention relates to a process for the production and isolation of lactic acid which is produced by way of fermentation of a carbohydrate-bearing feedstock and the addition of ammonia. The lactic acid is released from the ammonium salt of the lactate by adding a mineral acid and the lactic acid isolation takes place by extraction with the aid of an alkylated amine. The extraction is preferably operated at a pH value of 4.0 to 2.0, thereby obtaining a multi-phase mixture which is split up. The phase thus obtained with the lactate salt of amine subsequently undergoes distillation, so that lactic acid is obtained as pure product or the phase with the lactate salt of amine are thermally decomposed, thereby producing an oligolactide that is distillable and thus yields a pure dilactide. The invention also encompasses a device suitable for the performance of the inventive process. | 10-28-2010 |
20100263278 | GASIFICATION REACTOR AND PROCESS FOR ENTRAINED-FLOW GASIFICATION - A process and device for the gasification of liquid or fine-grain solid fuel materials with the aid of oxygenous, gaseous gasification agents in a reactor is described. Liquid slag is separated on the walls of the reactor. The synthesis gas is generated in a first reaction chamber arranged in the upper part of the reactor and the feedstock is fed to the upper part. Liquid slag precipitates on its lateral walls, with free downflow and no solidification of the slag surface. The lower side has a hole with a slag drop-off edge, from which the generated synthesis gas can be withdrawn in downward direction and the liquid slag can drop off the edge. A second chamber which is delimited by a water film is located under the opening and used to keep the synthesis gas dry and cool. A third chamber is adjacent to the bottom of the second and fed with water to cool the synthesis gas. A water bath is adjacent the bottom of the third chamber and collects the slag particles already solidified and dropped off or those particles still in the liquid phase. The synthesis gas is withdrawn from the pressure vessel in an area below or on the side of the third chamber but in any case located above the water bath. | 10-21-2010 |
20100236916 | RECOVERY OF BENZENE AND BENZENE DERIVATIVES FROM GASOLINE FRACTION AND REFINERY STREAMS - A process for the separation of the aromatic compounds benzene, toluene and xylene from an aromatics-containing reformate gasoline and pyrolysis gasoline or a coke-oven light oil or an aromatics-containing refinery stream, in which the aromatics are separated by an extractive distillation uses a novel solvent combination made up of the compounds n,n′-diformyl piperazine or 2,2′-bis-(cyanoethyl)ether in a combination with n-formyl morpholine as a second solvent for extractive distillation so that the solvent combination obtained shows a higher selectivity with regard to the aromatics to be extracted so that a lower solvent load is required. The aromatics-containing feed mixture is first submitted to a pre-distillation so that the obtained fraction has a narrow boiling point range. This fraction is then submitted to an extractive distillation in a first column, in which an aromatics-lean head product of predominantly paraffinic hydrocarbons is obtained as well as an aromatics-enriched bottom product. The bottom product is passed to a second column in which an aromatics-rich raffinate is obtained by reducing the pressure or increasing the temperature so that the extracting solvent combination obtained as bottom product can be recycled into the process. | 09-23-2010 |
20100234660 | REGENERATION OF CATALYSTS FOR DEHYDRATING ALKANES - The invention relates to a method for dehydrating alkanes, wherein the alkane is guided in a reactor for the dehydrogenation of alkanes via a catalyst, and the process may be carried out adiabatically or non-adiabatically, and the catalyst for dehydration can be regenerated after the reaction phase by means of transferring a gas, wherein said gas is guided via the catalyst after a short rinsing phase using water vapor, and said regeneration gas consists of a gas containing oxygen and of steam, and after regeneration the catalyst is freed of the gas containing oxygen by transferring steam, wherein the duration of the transfer of a gas containing oxygen is significantly reduced as compared to common methods and represents 70% or less of the total regeneration time, and the catalyst has an increased selectivity for forming alkene by means of carrying out the regeneration at a constant activity, and the catalyst is comprised of a metal of the group of platinum metals or group VIB of the periodic table of the elements, which is applied to a carrier in form of a compound or in elementary form, which substantially consists of oxides of the elements of tin, zinc, or aluminum. | 09-16-2010 |
20100193741 | PRIMARY REFORMER WITH SECONDARY INLET CHANNELS SUPPLYING THE BURNER - The invention relates to a reactor for catalytic reformation of hydrocarbons with steam at elevated pressure, said reactor comprising a reaction space and a fire space, said reaction space comprised of a multitude of vertical tubes arranged in rows and suitable for being filled with a catalyst, and having facilities for feeding hydrocarbons and steam to be reformed to the reaction space, and furthermore comprising facilities for discharge of reformed synthesis gas from the reaction space, and furthermore comprising a multitude of firing facilities in the upper area of the firing space, said firing facilities being able to generate mainly downwardly directed flames that are suitable to heat the aforementioned reaction tubes, with the tube feeding air to the burner being equipped with a facility for adjusting and setting the air flow, and there being a secondary air feeder mounted additionally to this tube and branching-off from it and configured in various layouts and having an independently controllable facility for adjusting and setting the air flow and also feeding air to the firing device so that a more favorable ratio of fuel gas versus air results at the burners so as to be able to achieve a waste gas poor in nitric oxides. | 08-05-2010 |
20100137670 | PROCESS AND APPARATUS FOR INJECTING OXYGEN INTO A REACTION GAS FLOWING THROUGH A SYNTHESIS REACTOR - Synthesis reactor comprising an apparatus for injecting oxygen, which can be initially charged in pure form, as air, or mixed with inert gas or water vapor, into a reaction gas which can flow through the synthesis reactor which finds use, for example, in an oxydehydrogenation plant, wherein oxygen and reaction gas have different temperatures, wherein a distribution element is provided upstream of the device for accommodating a catalyst charge in flow direction of the reaction gas, said distributor element comprising a distributor body, two tube plates and a multitude of gas guide tubes for passing the reaction gas through, and the oxygen can be supplied to the chamber between the gas guide tubes, wherein at least one baffle plate is arranged orthogonally to the gas guide tubes and divides the intermediate space into at least two distributor chambers, wherein the distributor chambers are connected to one another or merge into one another fluidically through one or more orifices, at least one gas line leads into the first distributor space in flow direction, through which the oxygen can be supplied, and the lower tube plate is provided in flow direction with a multitude of orifices in the form of nozzles, bores or the like, through which the oxygen can leave the intermediate space, wherein a solids-free gas mixing zone is provided below the lower tube plate. | 06-03-2010 |
20100129269 | COLLECTING MAIN FOR TUBULAR CRACKING FURNACES - Collecting line for removing hot process gases conducted in process gas tubes from tubular reformers, wherein the collecting line has on the inside at least one insulation layer made of fire-resistant concrete or fire-resistant brick, and on the outside a wall made of a metallic outer tube, comprises a plurality of stubs via which the process gas tubes of the tubular furnace can be connected to the collecting line, wherein in the region of the stubs, the process gas tubes are at least in part conducted in guide tubes, and each gas outlet connected to the respective process gas tube projects into the collecting line, by means of which the process gas is introduced into the collecting line in correct functioning, and at least one gas outlet is constructed as a pipe bend. | 05-27-2010 |
20100101107 | METHOD AND SYSTEM FOR DRYING FUELS IN THE FORM OF DUST, PARTICULARLY TO BE FED TO A GASIFICATION PROCESS - According to a method for drying fuels in the form of dust, particularly to be fed to a gasification process, such as coal, petroleum coke, biological waste, or the like, wherein the fuel ( | 04-29-2010 |
20100092692 | METHOD AND DEVICE FOR COATING SUBSTRATES - The invention relates to a method for coating one or more sides of substrates with catalytically active material, comprising material deposition under vacuum in a vacuum chamber, wherein the following steps are performed: (a) loading the vacuum chamber with at least one substrate, (b) closing and evacuating the vacuum chamber, (c) cleaning the substrate by introducing a gaseous reducing agent into the vacuum chamber, (d) increasing the size of the substrate surface by depositing a vaporous component on the substrate surface, (e) coating by a coating process taken from the group of plasma coating processes, physical gas deposition, sputtering processes or the like, wherein one or more metals and/or alkaline and/or earth alkaline metals or their oxides are applied to the surface of the substrate. This method may be used, for example, for coating electrodes which are used in the chlor-alkali electrolysis. | 04-15-2010 |
20100065413 | Coke oven comprising tertiary heating elements in the gas chamber - The invention relates to a horizontally designed, non-heat recovery-type coke oven comprising at least one coking chamber, downcomers that are laterally disposed relative to the coking chamber, and bottom ducts which are horizontally arranged below the coking chamber in order to indirectly heat the coking chamber. One or more heating elements are located in the gas chamber which is not filled with solid matter when the coke oven is appropriately used. | 03-18-2010 |
20100065412 | Coke oven featuring improved heating properties - The invention relates to a horizontally designed, non-heat recovery-type coke oven comprising at least one coking chamber, downcomers that are laterally disposed in relation to the coking chamber, and bottom ducts which are horizontally arranged below the coking chamber in order to indirectly heat the coking chamber. At least some of the interior walls of the coking chamber are embodied as a secondary heating area by coating the interior walls with a high-emission coating (HEB). The minimum emissivity of said high-emission coating is 0.9. Preferably, the high-emission coating (HEB) is made of Cr | 03-18-2010 |
20090283395 | Floor Construction for Horizontal Coke Ovens - The invention relates to a coke oven of a non-recovery horizontal type of construction, known as a non-recovery or heat-recovery coke oven, in which the coke oven floor is made up of at least two layers and each layer is formed of the same or different silica materials, wherein the first layer, seen from the oven space, is formed from a solid refractory material and the second layer comprises a multiplicity of openings, gaps, apertures or the like, the gas spaces of these openings, gaps, apertures or the like being in communication with the gas space of the flue gas duct running under them. | 11-19-2009 |
20090272266 | METHOD FOR OXYGENATING GASES, SYSTEMS SUITED THEREFOR AND USE THEREOF - A process for enriching the content of oxygen in oxygen- and nitrogen-containing gases in a separation apparatus which has an interior which is divided into a substrate chamber and into a permeate chamber by an oxygen-conducting ceramic membrane is described. The process comprises the introduction of oxygen- and nitrogen-containing sweep gas into the permeate chamber and the establishment of a pressure in the substrate chamber so that the oxygen partial pressure in substrate chamber and sweep chamber results in the transfer of oxygen through the ceramic membrane. | 11-05-2009 |
20090152092 | Feeding of Combustion Air for Coking Ovens - Device for burning coking gas in a coking chamber of a coke oven of the “non-recovery type” or “heat-recovery type”, a multiplicity of inlet openings for primary air being arranged in the roof of each oven chamber in such a way that the coking gas produced during the coking is brought into uniform contact with the desired quantity of primary air for the partial combustion of the coking gas, these inlet openings for primary air being combined above the oven for each chamber separately by an air feed system, the air feed systems of the individual oven chambers being connected to an air feed system common to many oven chambers, and a respective control member for varying the primary air quantity over the carbonizing time being provided between the common air feed system and the air feeds of the individual oven chambers. A slight, constant positive pressure can be applied to the common air feed system. | 06-18-2009 |
20090087366 | Solvent for Separating Acid Gas Components from Technical Gases - The invention relates to the use of a liquid, containing 0.1 to 100% of an amine or several amines of formula H | 04-02-2009 |
20080314801 | Process for Enhancement of the Selectivity of Physically Acting Solvents Used for the Absorption of Gas Components from Industrial Gases - The invention relates to a method for recovering absorbed hydrocarbon components while absorbing acid gases from technical gases, as for example a natural gas, by means of physically active absorption agents, wherein the inventive method consists in increasing the pressure of a loaded absorption agent extracted from an adsorption device, in adding said loaded absorption agent to the top of a rectification column which consist of a lower feeding stove and of one or several lateral stoves operating at a pressure slightly greater than the absorption column pressure, in adjusting an equilibrium is said rectification column in such a way that the acid gas concentration in the absorbent agent increases in the direction away from the bottom of the column and the hydrocarbon concentration decreases in said direction, in extracting a heated hydrocarbon-poor and acid gas component-rich absorption agent from the bottom of the column and in transferring said agent to an acid gas desorption device, in extracting a hydrocarbon-poor and acid gas component-rich recycling gas from the top of the rectification column, in cooling said recycling gas in a recycling gas cooler to a temperature of a service gas directed in the absorption device and in transferring said recycling gas directly to the absorption device or in mixing it with the service gas. | 12-25-2008 |
20080306288 | Method for Producing Olefin Oxides and Peroxides, Reactor and the Use Thereof - A process for reactions with or to form peroxidic compounds in a wall reactor whose reaction space has a specific material coating is described. | 12-11-2008 |
20080292944 | Silver Gas Diffusion Electrode for Use in Air Containing Co2, and Method for the Production Thereof - The invention relates to a method for the production of a gas diffusion electrode from a silver catalyst on a PTFE-substrate. The pore system of the silver catalyst is filled with a moistening filling agent. A dimensionally stable solid body having a particle size greater than the particle size of the silver catalyst is mixed with the silver catalyst. Said compression-stable mass is formed in a first calendar in order to form a homogenous catalyst band. In a second calendar, an electroconductive discharge material is embossed in the catalyst band, and heating takes places between the first and the second calendar by means of a heating device, wherein at least parts of the moistened filling agent are eliminated. The invention also relates to a gas diffusion electrode which is produced according to said method. | 11-27-2008 |
20080286176 | Catalyst-Coated Support, Method For Producing The Same, Reactor Comprising The Same And Use Thereof - Supports having a catalytic coating comprising at least one porous and cavity-containing catalyst layer are described, cavities being irregular spaces having dimensions greater than 5 μm in at least two dimensions or having cross-sectional areas of at least 10 μm | 11-20-2008 |
20080280204 | Method For The Production Of Nickel Oxide Surfaces Having Increase Conductivity - The invention relates to a method for producing electrically conducting nickel oxide surfaces made of nickel-containing material. According to said method, the nickel surface is first degreased and is then roughened for approximately ten minutes in a solution containing about one percent of hydrochloric acid, said process being accelerated by adding hydrogen peroxide solution, resulting in the electrolyte turning green. The nickel surface is briefly wetted, the nickel material is introduced into a solution of 3.5 molar lye to which about ten percent of hydrogen peroxide is added and is kept therein for ten minutes, and the resulting nickel hydroxide surface is dehydrated in a subsequent thermal process and is then further oxidized to obtain nickel oxide. The invention further relates to a conductive boundary layer that is produced according to said method, the electrodes therefrom, and the use thereof in chlorine-alkali electrolysis processes, in fuel cells and storage batteries. | 11-13-2008 |
20080272345 | Composite Ceramic Hollow Fibres Method for Production and Use Thereof - Composites comprising at least one hollow fibre of oxygen-transporting ceramic material, which is a ceramic material which conducts oxygen anions and electrons or a combination of ceramic material which conducts oxygen anions and a ceramic or nonceramic material which conducts electrons, with the outer surface of the hollow fibre being in contact with the outer surface of the same hollow fibre or another hollow fibre and the contact points being joined by sintering, are described. | 11-06-2008 |
20080241034 | Method For Reducing the Nitrogen Oxide Concentration in Gases - The method comprises passing an N | 10-02-2008 |