And recycle or reuse of contact liquid for further contact
Patent class list (only not empty are listed)
|Class / Patent application number
|Number of patent applications / Date published
|And recycle or reuse of contact liquid for further contact
|Gasification apparatus and method - A gasification system is disclosed having a combustion or reaction vessel, a scrubber housing, and a filter housing. A carbonaceous fuel is partially combusted in the reaction vessel to generate a combustible gas. An improved ash support and removal system reduces clogging and other problems in the reaction vessel. The combustible gas passes through the scrubber housing to remove matter such as tar and oil, and the scrubbed gas passes through a hybrid blower to the filter housing. Wood chips are used in the filter housing to provide a relatively clean, dry gas. Wastewater and other waste products from the scrubber housing and filter housing are captured and returned to the reaction vessel.
|System for Separating Carbon Dioxide from a Produced Gas with a Methanol Removal System - Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide. Natural gas liquids may be first separated and removed before fractionation. After fractionation, the waste stream is pressurized and transmitted to a remote injection well for injection either for disposal of the waste stream and preferably to urge hydrocarbons toward the producing well. A hydrocarbon stream proceeds from fractionation to a methanol absorber system which removes carbon dioxide gas. The hydrocarbon stream is thereafter separated into at least hydrocarbon gas, nitrogen and helium. Some of the nitrogen is reintroduced into a fractionation tower to enhance the recovery of hydrocarbons. A methanol recovery system is provided to recover and reuse the methanol. The hydrocarbons are sold as natural gas and the helium is recovered and sold. Excess nitrogen is vented.
|SYSTEM AND METHOD FOR REGENERATION OF AN ABSORBENT SOLUTION
|ABSORBING PAHS FROM GAS STREAMS - A system, method and apparatus for treating a waste gas stream containing on or more hydrocarbon contaminants such polycyclic aromatic hydrocarbons (PAH). The system, method and apparatus may include a heat treatment chamber having a recycling apparatus that includes a supply of a food oil solvent; a mixing device to mix the solvent with the waste gas stream. The system, method and apparatus dissolve the hydrocarbon contaminants from the gas stream into a solvent containing the food oil.
|Method of Deacidizing a Gas with a Fractional Regeneration Absorbent Solution with Control of the Water Content of the Solution - The present invention relates to a method of deacidizing a gaseous effluent, wherein the following stages are carried out:
|SYSTEM AND METHOD FOR SOFTENING WATER FOR USE IN A SCRUBBER - The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants) and, in particular to a new and useful method and apparatus designed to improve the water supplied to non-calcium-based, aqueous wet SO
|ABSORBENT LIQUID, AND APPARATUS AND METHOD FOR REMOVING C02 OR H2S FROM GAS WITH USE OF ABSORBENT LIQUID - An absorbent liquid according to the present invention is an absorbent liquid for absorbing CO
|METHOD AND SYSTEM FOR TRANSPORTING AND PROCESSING SOUR FLUIDS - A method and system for transporting and processing sour gas are provided. The method includes collecting a sour gas at a collection location, which has an associated sweetening device, and delivering a solvent to the sweetening device from a regeneration device remote therefrom. The sour gas is treated at the collection location with the solvent in the associated sweetening device to form a sweetened gas and a sour gas-rich solvent. The sweetened gas is transported from the sweetening device to a gas processing plant remote therefrom, and the sour gas-rich solvent from the sweetening device is delivered to the regeneration device for regeneration therein.
|METHOD AND SYSTEM FOR REGENERATING A SOLUTION USED IN A WASH VESSEL - A process and system (
|ABSORPTION MEDIUM AND METHOD FOR REMOVING SOUR GASES FROM FLUID STREAMS, IN PARTICULAR FROM FLUE GASES - Absorption medium for acid gases comprising an oligoamine (A) of the general formula (I)
|METHOD AND SYSTEM FOR REMOVAL OF GASEOUS CONTAMINANTS - A method and system for removing gaseous contaminants from a gas stream by contacting the gas stream with a wash solution and regenerating the wash solution in a regeneration system for future use in removing gaseous contaminants from the gas stream.
|ABSORBENT COMPOSITION AND PROCESS FOR REMOVING CO2 AND/OR H2S FROM A GAS COMPRISING CO2 AND/OR H2S - An absorbent composition for removing CO
|HEAT INTEGRATION OF A CEMENT MANUFACTURING PLANT WITH AN ABSORPTION BASED CARBON DIOXIDE CAPTURE PROCESS - The present invention relates to methods and systems for improving the utilization of energy in a cement manufacturing plant comprising an absorption based contaminant, e.g. CO
|METHODS AND APPARATUSES FOR COOLING AND SCRUBBING DIESEL EXHAUST GASES ON A SHIP - Methods and apparatuses for scrubbing diesel exhaust gases produced on a ship are provided. In an embodiment, a method for scrubbing diesel exhaust gases on a ship includes providing a scrubber vessel formed with a quench zone, a scrubbing zone, and a riser. Water is passed through the scrubbing zone and into the quench zone. The exhaust gases are delivered to the quench zone through the riser and enter the quench zone at a temperature of about 175° C. to about 340° C. The method includes cooling the exhaust gases to a temperature of about 60° C. to about 70° C. in the quench zone by contacting the exhaust gases with the water. The cooled exhaust gases are then scrubbed in the scrubbing zone.
|METHOD OF IMPROVING A PROCESS FOR THE SELECTIVE ABSORPTION OF HYDROGEN SULFIDE - An absorbent composition that is useful in the selective removal of hydrogen sulfide relative to carbon dioxide from gaseous mixtures that comprise both hydrogen sulfide and carbon dioxide and the use thereof. The absorbent composition includes an amine mixture of an amination reaction product of tert-butylamine with a polydispersed polyethylene glycol (PEG) mixture having an average molecular weight within a certain specified range of molecular weights. The amination reaction product may also comprise a first sterically hindered amine and a second sterically hindered amine. The absorbent composition, preferably, includes an organic co-solvent, such as a sulfone compound. A method is also provided for improving the operation of certain gas absorption processes by utilizing the absorbent composition.
|Systems and Methods for Improved Column Operation in Offshore Environments - Systems and methods for improved column operation in offshore environments by using a co-current contactor system in floating production, storage and offloading (FPSO) systems.
|METHOD FOR REMOVING ACID GASES FROM A FLUID FLOW CONTAINING NITROGEN OXIDES
|After separation of liquid from contact liquid
|WASH WATER METHOD AND SYSTEM FOR A CARBON DIOXIDE CAPTURE PROCESS - A system and method for recovering a solvent from a decarbonated flue gas in an absorption column, the decarbonated flue gas having had carbon dioxide absorbed and removed by vapor-liquid contact with a carbon dioxide absorbing solution containing the solvent. The system includes an emission control section configured to bring a water stream substantially free of the solvent into contact with the decarbonated flue gas to recover the solvent from the decarbonated flue gas and to form a solvent containing wash water and a reduced solvent containing flue gas and a flue gas cooling section configured to bring cooled wash water into contact with the reduced solvent containing flue gas to cool the reduced solvent containing flue gas and condense water from the decarbonated flue gas thereby forming a cooled flue gas and used wash water.
|And separation of solid from contact liquid
|METHOD AND SYSTEM FOR INCREASING THE EFFICIENCY AND ENVIRONMENTAL COMPATIBILITY OF COMBUSTION PROCESSES - A method and system for increasing the efficiency and environmental compatibility of combustion systems, preferably for heat recovery from a wet flue gas and/or for flue gas purification, especially of flue gas from the combustion of high water-content fuels, such as biomass, especially wood, and for reducing the volumetric flow of the flue gas and/or for recovery of water from the flue gas, wherein the flue gas is brought into contact with a measured quantity of concentrated hygroscopic in at least one absorber unit and the measured quantity of hygroscopic material is diluted and heated with absorption of water from the flue gas. Heated is extracted from the heated and diluted hygroscopic material after which it is concentrated in at least one separating unit by separation of water and the resulting measured quantity of concentrated hygroscopic material obtained is routed at least partially to the absorber unit.
|By liquid-liquid extraction or formation of azeotrope
|PROCESS FOR THE DEHYDRATION OF GASES - Process for the dehydration of gases, comprising: absorbing water vapour by means of a hygroscopic liquid consisting essentially of one or more C
|By stripping with gas
|Glycol Dehydration Unit
|By heating (e.g., fractional distillation, etc.)
|Exhaust Gas Treatment - An apparatus for reducing NOx comprising an exhaust conduit (
|METHOD AND DEVICE FOR REMOVING CO2 AND H2S - A method and a device for removing acidic materials, such as CO
|METHOD FOR RECLAIMING OF CO2 ABSORBENT AND A RECLAIMER - A method for reclaiming CO2 absorbing chemical(s) from a lean aqueous CO2 absorbent leaving a regeneration column (
|METHOD FOR REMOVAL OF ORGANIC COMPOUNDS FROM WASTE WATER STREAMS IN A PROGRESS FOR PRODUCTION OF (METH)ACRYLIC ACID - The present invention provides a method for removal of organic compounds, such as acetic acid, from waste water streams in processes for production of (meth)acrylic acid. In particular, a mixed product gas, comprising (meth)acrylic acid, acetic acid, propylene and acrolein, is subjected to fractional absorption to produce an aqueous product stream comprising (meth)acrylic acid, water and acetic acid, and an absorber off-gas stream comprising propylene and acrolein. The aqueous product stream is distilled to produce a purified (meth)acrylic acid stream and a waste water stream comprising water and acetic acid. The absorber off gas is then contacted with the waste water stream and at least a portion of the acetic acid moves from the waste water stream to the absorber off gas to produce a stripped waste water stream and an enriched absorber off gas.
|METHOD AND APPARATUS FOR CIRCULATING A GLYCOL STREAM, AND METHOD OF PRODUCING A NATURAL GAS PRODUCT STREAM - The methods apparatuses described herein involve recovering of glycol from an aqueous phase to form a stream of recovered glycol and a glycol recovery system. The aqueous phase is fed to the top of a lower theoretical stage in a distillation column. An overhead vapour stream is drawn from the distillation column overhead of an upper theoretical stage, and a bottom stream comprising a stream of regenerated glycol is drawn from the distillation column via a bottom outlet configured below the lower theoretical stage. The stream of recovered glycol comprises the regenerated glycol. In addition, a first middle theoretical stage is situated within the distillation column gravitationally above the lower theoretical stage and below the upper theoretical stage. A side stream of liquid water is drawn from the bottom of the upper theoretical stage in the distillation column.
|After separation of solid from contact liquid
|METHOD AND SYSTEM FOR REMOVAL OF CARBON DIOXIDE FROM A PROCESS GAS - Disclosed is a method of removing carbon dioxide from a process gas, the method comprising: contacting an ammoniated solution with the process gas in an absorption arrangement
|Process and Apparatus for Optimized Combination of Purification and Separation of MTO Reaction Gas Containing Catalyst Fine Powder - The invention relates to a process and an apparatus for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder. In particular, the invention provides a process for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder, comprising (a) scrubbing, purifying and cooling the MTO reaction gas containing catalyst fine powder, and separating and recovering the mist entrained in the scrubbed reaction gas and the catalyst fine powder that is not scrubbed off; (b) subjecting the scrubbing liquid containing catalyst fine powder to solid-liquid separation, and the purified scrubbing liquid after separation to repeated use after subsequent heat exchange and stripping treatment; and (c) subjecting the scrubbing liquid containing catalyst fine powder to solid-liquid separation, and further concentrating the scrubbing liquid containing catalyst fine powder after separation before the catalyst fine powder is finally recovered in solid form by centrifugal dewatering or drying. The invention also provides an apparatus for optimized combination of purification and separation of MTO reaction gas containing catalyst fine powder.
|SEPARATION DEVICE FOR CARBON DIOXIDE, METHOD FOR THE OPERATION THEREOF, AND SEPARATING UNIT - A device and method for separating off carbon dioxide is provided, including an absorption unit, desorption unit assigned thereto and a separation unit for separating off salts from a scrubbing solution. The absorption and desorption units are connected to each other via a first conduit for a regenerated scrubbing solution and a second conduit for a loaded scrubbing solution. The separation unit includes a crystallizer for forming salt crystals and a first separator unit on the downstream side for separating off salt crystals. A separation unit is provided for separating off salts from a scrubbing solution, having a crystallizer and a first separator unit downstream thereof. The crystallizer has a crystallization chamber for forming salt crystals and a countercurrent classifier for separating salt crystals according to particle size. A first branch conduit is connected to the crystallization chamber, which opens out into the countercurrent classifier via a second separator unit.
|And deflection to remove liquid particles from gas
|METHOD OF REMOVING LIQUID CONTAMINANT DROPLETS FROM A GAS STREAM, AND WASH TRAY - A method of removing liquid contaminant droplets from a gas stream, comprising providing a wash tray in a vessel with at least one swirl tube device; admitting the gas stream including liquid contaminant droplets into the at least one swirl tube; admitting wash liquid into the gas stream in the at least one swirl tube, to form a gas/liquid mixture with wash liquid droplets dispersed in the gas stream; allowing the wash liquid droplets and liquid contaminant droplets to interact in a scrubbing section; passing the gas/liquid mixture along a swirl imparting means so as to perform centrifugal separation into washed gas and liquid, and removing washed gas and liquid. Moreover a swirl tube wash tray for use in a vessel for removing liquid contaminant droplets from a gas stream by means of a wash liquid, which wash tray comprises having a wash liquid supply means with an outlet opening some distance above a liquid supply space.
|Liquid contact in plural serial stages
|Apparatus and Method for Recovering Carbon Dioxide from Flue Gas Using Ammonia Water - An apparatus and method for absorbing and recovering carbon dioxide from flue gas using ammonia water as an absorbent, including an absorption column and a circulation cooler connected to the absorption column so that a high-temperature absorbent is recovered from the absorption column, cooled to a preset temperature, and then supplied again into the absorption column, in order to dissipate absorptive heat generated when carbon dioxide is absorbed from the flue gas.
|GAS PURIFICATION SYSTEM HAVING PROVISIONS FOR CO2 INJECTION OF WASH WATER - The present invention relates to a methods and systems for the removal of contaminants from a gas stream, comprising the steps of: a)introducing CO
|FLUE GAS SCRUBBING APPARATUS AND PROCESS - An apparatus and process for removing acidic gases from flue gases produced by, for example, utility and industrial facilities. The acidic gases are removed as the flue gas flows upward through a contact zone within a passage, where the flue gas is contacted with an ammonium sulfate-containing scrubbing solution to absorb the acidic gases from the flue gas. The scrubbing solution and absorbed acidic gases therein are then accumulated, and ammonia and an oxygen-containing gas are injected into the accumulated scrubbing solution to react the absorbed acidic gases and produce ammonium sulfate. An acid solution is flowed across the passage above the contact zone of the passage, and the scrubbed flue gas is flowed upward through the acid solution to remove unreacted ammonia from the scrubbed flue gas. The acid solution is then removed from the passage after the acid solution has been contacted by the scrubbed flue gas.
|MAINTAINING LOW CARBON MONOXIDE LEVELS IN PRODUCT CARBON DIOXIDE - A process for maintaining a low carbon monoxide content in a carbon dioxide product that is made in a synthesis gas purification process is disclosed. More particularly, the invention involves an improved process in which a portion of a loaded solvent is sent through a carbon dioxide absorber instead of to a series of carbon dioxide flash drums.
|SINGLE ABSORBER VESSEL TO CAPTURE CO2 - A system for removing carbon dioxide from a flue gas stream is provided, the system comprising an absorber vessel configured to receive a flue gas stream, the absorber vessel comprising a first absorption stage configured to receive the flue gas stream and contact it with a first ionic solution, a second absorption stage configured to receive flue gas which has passed the first absorption stage and contact it with a second ionic solution, a first sump vessel, and a second sump vessel. Furthermore, a method for removing CO
|ADVANCED INTERCOOLING AND RECYCLING IN CO2 ABSORPTION - The present invention relates processes of removal of acidic gases from a gas stream, comprising the steps of
|AMMONIA REMOVAL, FOLLOWING REMOVAL OF CO2, FROM A GAS STREAM - A process for removal of CO
|MULTI-STAGE SCRUBBING SYSTEM AND METHOD FOR ETHANOL VENT STREAMS - A multi-stage scrubbing system comprises a pre-scrubber system structured to receive a vent stream therein and pre-scrub the vent stream with a pre-scrubber fluid. The pre-scrubber system includes a first outlet for discharging a pre-scrubbed vent stream and a second outlet for discharging a discharge stream of pre-scrubber fluid. A main scrubber system is fluidly coupled to the first outlet of the pre-scrubber system for receiving and further scrubbing the pre-scrubbed vent stream.
|PROCESS FOR REMOVING CARBON DIOXIDE (C02) FROM A CYCLE GAS SYSTEM - A process for removing carbon dioxide (CO
|METHOD AND APPARATUS FOR CO2 CAPTURE - Disclosed is a method for capturing C02 from a gas stream (
|FLUE GAS TREATMENT SYSTEM - The present invention relates to a gas cleaning system for cleaning a gas stream containing carbon dioxide and sulfur dioxide, said gas cleaning system comprising: a pre-conditioning section (
|Removal of solid or liquid particles from gas
|PROCESS AND APPARATUS FOR SEPARATING METAL CARBONYLS FROM SYNTHESIS GAS - The invention relates to a process for purifying crude synthesis gas (
|Reduction of pressure during liquid contact
|PROCESS FOR THE RECOVERY OF CARBON DIOXIDE - A process for the recovery of carbon dioxide, which includes: (a) an absorption step of bringing a carbon dioxide-containing gaseous feed stream into gas-liquid contact with an absorbing fluid, whereby at least a portion of the carbon dioxide present in the gaseous stream is absorbed into the absorbing fluid to produce (i) a refined gaseous stream having a reduced carbon dioxide content and (ii) an carbon dioxide-rich absorbing fluid; and (b) a regeneration step of treating the carbon dioxide-rich absorbing fluid at a pressure of greater than 3 bar (absolute pressure) so as to liberate carbon dioxide and regenerate a carbon dioxide-lean absorbing fluid which is recycled for use in the absorption step, in which the absorbing fluid is an aqueous amine solution containing a tertiary aliphatic alkanol amine and an effective amount of a carbon dioxide absorption promoter, the tertiary aliphatic alkanol amine showing little decomposition under specified conditions of temperature and pressure under co-existence with carbon dioxide.
|Removal of solid or liquid particles from gas
|FLARE SYSTEM AND METHOD FOR REDUCING DUST THEREFROM - Provided is a ground flare system that can enhance the removal rate of dust and other such impurities contained in exhaust gas to be processed. The ground flare system that performs an incineration process on processing target gas and emits the processed gas to the atmosphere includes: a ground flare that combusts the processing target gas; a knock-out drum that is placed upstream of the ground flare and reduces a flow velocity of the processing target gas introduced thereto; a seal drum for backfire prevention placed upstream of the ground flare; a gas introducing pipe that introduces the processing target gas into the knock-out drum and/or the seal drum; and a water film forming unit that is provided inside of the gas introducing pipe and forms a water film of spray water in a direction that intersects with a flow direction of the processing target gas.
|Reduction of pressure
|Method for Dissolving, Recovering and Treating a Gas, Installation for the Stocking of a Gas and Its Method of Manufacture - Method for the dissolution of a gas in an input gas flow, in which a soaked solid comprising a porous substrate comprising pores each having a size less than 100 nanometres (nm) and each containing a solvent of the gas, is swept with the input gas flow comprising at least the gas.
|CO2 ABSORPTION FROM GAS MIXTURES USING AN AQUEOUS SOLUTION OF 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE
|PROCESS AND APPARATUS FOR SEPARATING METAL CARBONYLS FROM GAS MIXTURES - The invention relates to a process and an apparatus for separating metal carbonyls from a gas mixture (
|Device and Method for Evacuating a Chamber and Purifying the Gas Extracted From Said Chamber - A device evacuates a chamber and purifies the gas extracted from said chamber of any foreign substances. The device comprises a dry-condensing vacuum pump having an input connected to the chamber to be evacuated and is suitable for maintaining the input pressure at a constant level at the output despite variable conditions. An intermediate line which connects to the output of the dry-condensing vacuum pump and a liquid ring vacuum pump, the input of which is connected to the intermediate line, are additionally provided. A corresponding method makes it possible to purify the gas of any foreign substances reliably and effectively.
Patent applications in class And recycle or reuse of contact liquid for further contact
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