Entries |
Document | Title | Date |
20080196585 | Process for Vaporizing the Product CO2 at Two Different Pressures during CO2 Separation - An improved process for the separation of carbon dioxide from the flue gas of an oxy-combustion power plant is provided. At least a first product stream and a second product stream are separated from a flue gas stream, wherein the pressure of the first product stream and the pressure of the second product stream are different. The first product stream is warmed and vaporized. The second product stream is then warmed and vaporized | 08-21-2008 |
20080216652 | PROCESS AND DEVICE FOR SEPARATING HYDROGEN FROM GAS FLOWS HAVING AN OXYGEN CONSTITUENT - A process and a device for separating hydrogen from a gas flow having an oxygen constituent, comprised primarily of hydrogen, nitrogen, oxygen, carbon dioxide, carbon monoxide, methane and/or other hydrocarbons, is disclosed. The gas flow is compressed in a multi-stage compression process and then cooled to room temperature by a heat exchanger. After a pre-adsorber, the gas flow is fed to a catalytic process for removing the oxygen. The catalytic reaction for removing the oxygen takes place exothermically. The gas flow is then cooled to room temperature via another heat exchanger and fed to a pressure swing adsorption process for hydrogen separation. The hydrogen is separated there from the residual gas. | 09-11-2008 |
20080257152 | METHODS OF PURIFYING A GAS MIXTURE COMPRISING TWO GASES USING GRANULATED POROUS GLASS - A packed bed of granulated porous glass is used to purify a gas mixture comprising two gases whose boiling points or sublimation points at one atmosphere are least 10° K apart. | 10-23-2008 |
20080264253 | PROCESSES FOR REMOVING ORGANIC COMPONENTS FROM GASES CONTAINING HYDROGEN CHLORIDE - Processes comprising: providing a crude gas stream having a temperature not exceeding 40° C., the crude gas stream comprising hydrogen chloride and at least one organic impurity; condensing at least a portion of the at least one organic impurity from the crude gas stream at a temperature not exceeding 0° C. to form a prepurified gas stream and a condensate comprising condensed organic impurity; subjecting at least a portion of the prepurified gas stream to adsorption on an adsorption medium to provide a purified gas stream; and separating the condensate into at least a head gas stream comprising residual hydrogen chloride and a sump stream comprising at least a portion of the condensed organic impurity. | 10-30-2008 |
20080282883 | Containerized Gas Separation System - Containerized gas separation system comprising (a) a container having an interior, an exterior, and an exterior volume defined by the exterior dimensions of the container and (b) a pressure swing adsorption system installed in the interior of the container and adapted to recover a product gas from a feed gas mixture, the pressure swing adsorption system being adapted to deliver the product gas at a product gas flow rate, wherein the ratio of the exterior volume of the container to the product gas flow rate is less than about 2000 ft | 11-20-2008 |
20080282884 | Removal of heavy hydrocarbons from gas mixtures containing heavy hydrocarbons and methane - A process for the separation of one or more heavy hydrocarbon gases from a gas mixture containing heavy hydrocarbon gas components and methane. The process is conducted in swing adsorption apparatus containing adsorbent contactor having a plurality of flow channels and wherein 20 volume percent or less of the open pore volume of the contactors, is in the mesopore and macropore range. | 11-20-2008 |
20090007782 | Hydrogen Management in Petrochemical Process Units - The management of hydrogen in hydrogen-containing streams associated with petrochemical process units wherein the hydrogen-containing stream is subjected rapid cycle pressure swing adsorption to increase the concentration of hydrogen therein. | 01-08-2009 |
20090013870 | Landfill Gas Purification Method and System - The present disclosure provides a method for separating and purifying a landfill gas stream. In one embodiment, the method includes a step of collecting a crude landfill gas stream which includes at least methane, carbon dioxide, oxygen, and nitrogen gases. The method also includes a step of separating the crude landfill gas stream into at least an intermediate landfill gas stream and a first waste gas stream using a membrane separation unit, wherein the intermediate landfill gas stream is enriched in methane and depleted in carbon dioxide relative to the crude landfill gas stream. The method further includes a step of separating the intermediate landfill gas stream into at least a final landfill gas stream and a second waste gas stream using a pressure swing adsorption separation unit, wherein the final landfill gas stream is enriched in methane and depleted in carbon dioxide, oxygen, and nitrogen relative to the intermediate landfill gas stream. In some embodiments. VOCs in the waste gas streams are destroyed using a thermal oxidizer. | 01-15-2009 |
20090025553 | ADSORBENT COATING COMPOSITIONS, LAMINATES AND ADSORBER ELEMENTS COMPRISING SUCH COMPOSITIONS AND METHODS FOR THEIR MANUFACTURE AND USE - Using zeolites as the active adsorbent, adsorbent laminates have been fabricated with various sheet supports. These adsorbent laminates have been successfully operated for oxygen enrichment at high PSA cycle frequencies, such as upwards of at least 150 cycles per minute. Methods for making suitable adsorbent laminates are described. The methods generally involve forming a slurry comprising a liquid suspending agent, an adsorbent and a binder. Laminates are made by applying the slurry to support material or admixing support material with the slurry. The slurry can be applied to support material using a variety of techniques, including roll coaters, split roll coaters, electrophoretic deposition, etc. One method for making laminates by mixing support material with the adsorbent slurry comprises depositing the slurry onto a foraminous wire, draining the slurry material, and pressing the material to form a ceramic adsorbent paper. Spacers can be formed on adsorbent laminates to space one laminate from another. The spacer dimensions can be uniform, or can vary along a laminate, such as increasing in height from a first end to a second end of the laminate. Gas flow-through apertures also can be formed on laminates. The laminates are adjacent one another to define flow channel between adjacent bodies, whereby a portion of a gas flowing through the flow channels flows through the apertures to facilitate pressure equalization in the adsorbent structure. | 01-29-2009 |
20090071332 | Management of Hydrogen in Hydorgen-Containing Streams from Hydrogen Sources - The use of rapid cycle pressure swing adsorption having a cycle time of less than 30 s for increasing the hydrogen concentration in hydrogen-containing steams, from a hydrogen source, such as a stream reforming unit. | 03-19-2009 |
20090071333 | Performance Stability in Shallow Beds in Pressure Swing Adsorption Systems - PSA process for oxygen production comprising (a) providing an adsorber having a first layer of adsorbent selective for water and a second layer of adsorbent selective for nitrogen, wherein the heat of adsorption of water on the adsorbent in the first layer is equal to or less than about 14 kcal/mole at water loadings less than about 0.05 mmol per gram; (b) passing a feed gas comprising at least oxygen, nitrogen, and water successively through the first and second layers, adsorbing water in the first layer of adsorbent, and adsorbing nitrogen in the second layer of adsorbent, wherein the mass transfer coefficient of water in the first layer is in the range of about 125 to about 400 sec | 03-19-2009 |
20090095154 | Rotary cylinder dual diverter valve - A rotary cylinder valve comprises a valve body, a valve cylinder rotationally mounted within the valve body, and first, second, third and fourth valve seats coupled to the valve body. The valve cylinder has a first position in which dual independent flow paths connect the first valve seat with the second valve seat, and connect the third valve seat with the fourth valve seat. The valve cylinder is rotatable to a second position in which the dual independent flow paths connect the first valve seat with the fourth valve seat, and connect the third valve seat with the second valve seat. The valve seats form seals against the valve cylinder, such that no flow path connects the first valve seat with the third valve seat. | 04-16-2009 |
20090178558 | Gas adsorption and gas mixture separatoins using mixed-ligand MOF material - A method of separating a mixture of carbon dioxiode and hydrocarbon gas using a mixed-ligand, metal-organic framework (MOF) material having metal ions coordinated to carboxylate ligands and pyridyl ligands. | 07-16-2009 |
20090211441 | Separation of carbon dioxide from methane utilizing zeolitic imidazolate framework materials - The present invention relates to the selective separation of carbon dioxide (“CO | 08-27-2009 |
20090211442 | SYSTEMS AND PROCESSES FOR PROCESSING HYDROGEN AND CARBON MONOXIDE - In various implementations, various feed gas streams which include hydrogen and carbon monoxide may be processed for conversion to product streams. For example, the feed gas stream may be processed using the Fischer-Tropsch process or a methanol synthesis process. Unconverted hydrogen and carbon monoxide can be recycled at high recovery and/or inert components removed to prevent build-up in the recycle system by using an arrangement of pressure swing adsorption systems designed to recover impure product gas streams. | 08-27-2009 |
20100043635 | PSA Method Using A Composite Adsorption Bed Comprising An Adsorbent And PCM Agglomerates - A thermocyclic process having a short cycle time, typically a cycle time of less 30 minutes, especially a PSA (Pressure Swing Adsorption) process, using agglomerates that contain phase change materials (PCMs), so as to reduce the thermal effects that said thermocyclic process is subjected to during each cycle is provide. | 02-25-2010 |
20100071551 | Limiting Of Impurity Peaks - A process for gas purification or separation intended to produce a gas mixture containing mainly hydrogen and, to a minor extent CO, it being imperative for the CO content to remain below a set value is presented. This invention particularly relates to adsorption processes and even more particularly to processes of the PSA (“Pressure Swing Adsorption”) type. | 03-25-2010 |
20100126344 | MIXTURE COMPRISING A METAL ORGANIC FRAMEWORK AND ALSO A LATENT HEAT STORE - The present invention relates to mixtures comprising, in each case based on the total weight of the mixture,
| 05-27-2010 |
20100206165 | Method For The Purification Of A Gas Containing CO2 Using An Adsorption Purification Unit - A method for the purification of a feed gas stream containing CO | 08-19-2010 |
20100251891 | Fluid Treatment Device - A fluid treatment device is disclosed. The device includes a vessel having a fluid entrance and exit. Within the vessel hollow fibre of nano-porous material are arranged so as to define two volumes separated by the nano-porous material. In one embodiment the fluid, air, passes up the centre of the hollow fibre drying as the air contacts the inner walls of the fibre. The device is purged by stopping the flow through the device and allowing the air pressure that builds up between the fibres to be released through the nano-porous material. | 10-07-2010 |
20100258004 | MICROPOROUS COORDINATION POLYMERS AS NOVEL SORBENTS FOR GAS SEPARATION - A method of separating a target component from a chemical mixture comprising contacting a chemical mixture with a microporous coordination polymer. The microporous polymer is described by the formula: [M | 10-14-2010 |
20100269694 | Silicate Materials, Method For Their Manufacture, And Method For Using Such Silicate Materials For Adsorptive Fluid Separations - Embodiments of crystalline, titanium silicate molecular sieves are described having a formula representing mole ratios of oxides of n M | 10-28-2010 |
20100294130 | METHOD AND APPARATUS FOR SEPARATING HYDROGEN GAS - A hydrogen gas separation method utilizing PSA process employs a plurality of adsorption towers A, B, C loaded with an adsorbent for separating the hydrogen gas from a hydrogen-containing gas mixture, and a cycle including introducing the gas mixture into the adsorption tower, adsorbing unnecessary gas in the gas mixture by the adsorbent, leading out product gas having high hydrogen concentration from the adsorption tower, desorbing the unnecessary gas from the adsorbent, and leading out desorbed gas containing the unnecessary gas and residual gas in the adsorption tower from the adsorption tower, is repeated. The adsorbent includes an activated carbon-based first adsorbent D located on the upstream side of the flow direction of the gas mixture in the adsorption tower with an filling ratio of 60 to 80%, and a zeolite-based second adsorbent E located on the downstream side of the flow direction with filling ratio of 40 to 20%. | 11-25-2010 |
20100300288 | GUARD LAYERS FOR RAPID CYCLE PRESSURE SWING ADSORPTION DEVICES - Guard layers are employed in the adsorbent beds of rapid cycle pressure swing adsorption (RCPSA) devices to protect the adsorbent therein from certain contaminants (e.g. water vapour). Conventional PSA devices typically pack the guard layer with as much guard material as is practical. In RCPSA devices however, the performance of the guard layer can be improved by using a reduced amount of guard material and increasing access to it. Such embodiments are characterized by guard layers with a channel fraction of greater than 50%. | 12-02-2010 |
20110088549 | Materials, Methods and Systems for Selective Capture of CO2 at High Pressure - The present invention provides methods and systems for carbon dioxide, hydrogen sulfide and other acid gases capture via adsorption at high pressure using mesoporous materials. | 04-21-2011 |
20110088550 | PROCESS AND APPARATUS FOR CARBON DIOXIDE CAPTURE VIA ION EXCHANGE RESINS - A process for the reduction of carbon dioxide (or CO | 04-21-2011 |
20110088551 | Dust-Laden Wet Gas Treatment - A method for producing a CO | 04-21-2011 |
20110146487 | MODULAR COMPACT ADSORPTION BED - A modular and compact adsorbent bed structure is disclosed for use in an adsorption-based gas separation plant. The conventional adsorbent bed in a gas separation plant is replaced with a plurality of modular adsorbent bed units connected to make the adsorbent bed structure. Modular adsorbent bed units of this invention provide higher capacity of product per unit volume of adsorbent material (i.e., increased adsorbent utilization) as compared to that obtained from conventional adsorbent beds. The modular design requires lower fabrication costs; is easier to transport; has less maintenance and repair requirements; and is easier to load with adsorbent material. | 06-23-2011 |
20110219950 | SINGLE-BED RADIAL ADSORBERS IN SERIES - The invention relates to a method for purifying a feedstock gas flow including a main compound, water (H2O) and carbon dioxide (CO2) as well as so-called secondary impurities, that comprises: a) feeding the feedstock gas flow into at least one 2-grid radial adsorber comprising as a single adsorption bed an activated alumina or silica gel bed on which H2O is preferably adsorbed; b) feeding the gas resulting from step a) into at least one 2-grid radial adsorber comprising as a single adsorption a molecular sieve bed on which CO2 and secondary impurities are preferably adsorbed; and c) recovering a gas resulting from step b) enriched with the main compound and suitable for cryogenic distillation. | 09-15-2011 |
20110315012 | Removal of ethane from natural gas at high pressure - ETS-10 type materials preferentially adsorb ethane and, if present, C | 12-29-2011 |
20120024152 | PRESSURE SWING ADSORPTION-TYPE GAS SEPARATION METHOD AND SEPARATION APPARATUS - A method which separates a component which is easily adsorbed by an adsorbent and a component which is not easily adsorbed by the adsorbent, from a feed gas which includes at least two kinds of components, with adsorption columns, wherein the adsorbent is filled in the adsorption columns and has strong adsorbability with respect to at least one kind of component included in the feed gas, and also has weak adsorbability with respect to at least one kind of other components included in the feed gas, and a temperature of the adsorbents which is filled in the column is maintained to be higher than the highest temperature of an ambient temperature around the adsorption columns which is variable throughout the year. | 02-02-2012 |
20120031268 | REVERSIBLE ETHYLENE OXIDE CAPTURE IN POROUS FRAMEWORKS - This disclosure relates to porous frameworks for ethylene oxide separation and recovery. | 02-09-2012 |
20120167761 | METHOD OF USING A METAL ORGANIC FRAMEWORKS BASED ON ALUMINUM FUMARATE - A method comprising
| 07-05-2012 |
20120174775 | TEN BED PRESSURE SWING ADSORPTION PROCESS OPERATING IN NORMAL AND TURNDOWN MODES - The present invention relates to a ten bed pressure swing adsorption (PSA) system utilizing new and advanced cycles to obtain enhanced hydrogen recovery from a hydrogen containing feed gas (i.e., synthesis gas). More specifically, through the newly developed process cycles, the ten bed PSA system is capable of matching the hydrogen recovery of conventional twelve bed PSA systems designed to manufacture 100 million standard cubic feet per day of gas. | 07-12-2012 |
20120222551 | Swing Adsorption Processes Utilizing Controlled Adsorption Fronts - A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture. | 09-06-2012 |
20120227583 | METHOD FOR PURIFYING A GAS FLOW IMPLEMENTING A CONTACTOR HAVING PARALLEL PASSAGES WHILE MAINTAINING THE PERFORMANCE THEREOF - The invention relates to a method for purifying a gas flow including at least a first compound selected from the compounds of a first group including water, ammonia, aromatics, alkane-, alkene-, or alkyne-type hydrocarbons containing at least 5 carbon atoms, aldehydes, ketones, halogen hydrocarbons, hydrogen sulfide, hydrogen chloride, and at least second and third compounds selected from the compounds of a second group including helium, hydrogen, nitrogen, oxygen, argon, carbon monoxide, carbon dioxide, hydrocarbons lower than C5, wherein said method comprises a variable-pressure adsorption implementing at least one main adsorber comprising at least one contactor having parallel passages, characterized in that said first compound is at least partially stopped upstream from said main adsorber. | 09-13-2012 |
20120247331 | PROCESS FOR PURIFYING A GAS IN A TEMPERATURE SWING ADSORPTION UNIT - A temperature swing adsorption process to purify a gas comprising at least one adsorption step and at least one regeneration step wherein the regeneration step takes place at a lower pressure than the adsorption step. The pressure is increased by a repressurization step between the regeneration step and the adsorption step, and then a purge step takes place after said repressurization step. | 10-04-2012 |
20130061750 | METHOD AND APPARATUS FOR CONCENTRATING OZONE GAS - A method of concentrating ozone gas including: causing ozone gas contained in ozone-oxygen mixture gas to be selectively adsorbed to adsorbents which are filled in a non-cooled state in at least two adsorbing cylinders arranged parallel to one another; desorbing the ozone gas from the adsorbents by subjecting a depressurizing process to each adsorbing cylinder during an ozone gas desorption operation; repeating an adsorption step and a desorption step alternately in the at least two adsorbing cylinders; and controlling the adsorbing cylinders, in such a way that one of the adsorbing cylinders is performing the adsorption step while another one of the adsorbing cylinders is performing the desorption step. | 03-14-2013 |
20130112075 | METHOD FOR CLEANING A GAS FLOW LOADED WITH DUST - A method is provided for cleaning a gas flow made of top gas and/or off gas and/or export gas from a direct reduction plant or a melt reduction plant, which is loaded with dust and/or fine particulate solids. The gas flow is subjected to a dry cleaning using at least one dry filter, wherein dusts and/or fine particulate raw materials are separated from the gas flow. The cleaned gas flow is fed into a CO2 separating device, wherein CO2 is separated, forming a product gas that is substantially free of water and CO2 and is used for backflushing the dry filter. | 05-09-2013 |
20130206004 | METHOD AND DEVICE FOR VACUUM PRESSURE SWING ADSORPTION WITH TEMPORARY STORAGE - Adsorptive decomposition of a gas mixture is performed by vacuum pressure swing adsorption. The gas mixture is condensed to the adsorption pressure by means of at least one condenser prior to being fed into the vacuum pressure swing adsorption process. Regeneration of the adsorber(s) is carried out by means of at least one vacuum pump. The condensed gas mixture ( | 08-15-2013 |
20130213229 | SORBENTS FOR THE RECOVERY AND STRIPPING OF ACID GASES - An acid-gas sorbent comprising an amine-composite. The present composite may comprise a first component comprising an amine compound at a concentration of from about 1 wt % to about 75 wt %; a second component comprising a hydrophilic polymer and/or a pre-polymer compound at a concentration of from about 1 wt % to about 30 wt %; and a third component comprising a cross-linking agent, and/or a coupling agent at a concentration of from about 0.01 wt % to about 30 wt %. | 08-22-2013 |
20130269523 | FINAL BIOGAS PURIFICATION PROCESS - The present invention relates to a process for the purification by adsorption of a feed flow rich in methane and comprising at least carbon dioxide. | 10-17-2013 |
20130327216 | Methods of Removing Contaminants from a Hydrocarbon Stream by Swing Adsorption and Related Apparatus and Systems - A swing adsorption process for removing contaminants from a gaseous feed stream through a combination of a selective adsorbent material containing an effective amount of a non-adsorbent filler, adsorbent contactor design, and adsorption cycle design. | 12-12-2013 |
20130340614 | NOVEL ADSORBENT COMPOSITIONS - Adsorbent compositions useful in adsorption, separation and purification processes are made using silicone-derived binding agents. The adsorbent compositions having enhanced adsorption rate and crush strength properties are made from agglomerated crystallite particles bound with silicone-derived binding agents. The silicone binder precursors are calcined during the manufacturing process to produce the silicone-derived binding agents. The adsorbent compositions are preferably used in air separation processes. | 12-26-2013 |
20130340615 | NOVEL ADSORBENT COMPOSITIONS - Adsorbent compositions useful in adsorption and separation processes are made using silicone-derived binding agents. The adsorbent compositions are made from crystallite aluminosilicate particles bound with silicone-derived binding agents, and optionally small amounts of a clay binder, to form agglomerated crystallite particles and are calcined to volatilize the organic components associated with the silicone-derived binding agents. The agglomerated crystallite particles have superior pore structures and superior crush strengths at low binder concentrations and exhibit enhanced N | 12-26-2013 |
20140026750 | Carbon Dioxide Recovery - For separating carbon dioxide (CO | 01-30-2014 |
20140047978 | PROCESS FOR PURIFYING A GAS IN A TEMPERATURE SWING ADSORPTION UNIT - A temperature swing adsorption process to purify a gas comprising at least one adsorption step and at least one regeneration step wherein the regeneration step takes place at a higher pressure than the adsorption step. The pressure is increased by a repressurization step between the regeneration step and the adsorption step, and then a purge step takes place after said repressurization step. | 02-20-2014 |
20140060326 | INCREASING SCALES, CAPACITIES, AND/OR EFFICIENCIES IN SWING ADSORPTION PROCESSES WITH HYDROCARBON GAS FEEDS - The invention relates to an increased efficiency high-capacity pressure and/or temperature swing adsorption process comprising: contacting a feedstream at a rate of more than 75 MSCFD with an adsorbent material under conditions sufficient for the adsorbent material to selectively adsorb at least one of the component gases in the feedstream, so as to form a first effluent; and selectively desorbing the adsorbed gas from the adsorption material, so as to form a second effluent The adsorption module can contain rotary valves both on the feed end and on the product end and a rotational member defining a central rotational axis, with the adsorption bed(s) oriented circumferentially thereto. The adsorption bed walls can be angled, the feed end cross-sectional area of the adsorption bed(s) can be larger than the product end, and/or the feed end rotary valve diameter of the module(s) can be larger than the product end. | 03-06-2014 |
20140083293 | ADSORBER INCLUDING PARALLEL-PASSAGE CONTACTORS HAVING BUILT-IN INSULATION - Adsorber for adsorbing a fluid, comprising a cylinder with at least two parallel-passage contactors disposed in series in the direction of flow of the fluid to be adsorbed, and characterised in that each contactor comprises an internal insulation. | 03-27-2014 |
20140157986 | DDR TYPE ZEOLITES WITH STABILIZED ADSORPTION - Methods are provided for forming zeolite crystals suitable for gas phase separations with transport characteristics that are stable over time. The zeolitic materials and/or corresponding methods of synthesis or treatment described herein provide for improved stability in the early stages of process operation for some types of gas phase separations. The methods allow for synthesis of DDR type zeolites that have reduced contents of alkali metal impurities. The synthetic methods for reducing the non-framework alkali metal atom or cation impurity content appear to have little or no impact on the DDR crystal structure and morphology. | 06-12-2014 |
20140165830 | OXYGEN CONCENTRATION SYSTEM AND METHOD - The present system is an adsorption system for separating air into a concentrated gas component, which has an air supply, a compressor for receiving and compressing the air supply, providing a compressed air supply, and molecular sieve material for separating the compressed air supply into a concentrated gas component. The adsorption system delivers at least 5 liters per minute (LPM) of concentrated gas component from the molecular sieve material in which the system has a specific total weight per LPM<9 lbs/LPM. Additionally, an output quantity of the concentrated gas is delivered by the adsorption system and a purging quantity of the concentrated gas is dispensed into a sieve chamber of the adsorption system undergoing a purge cycle. The purging quantity has a value equal to or less than the difference between the maximum quantity and the output quantity, and the purging quantity is controlled based on the output quantity. | 06-19-2014 |
20140174291 | CO2 CAPTURE PROCESSES USING ROTARY WHEEL CONFIGURATIONS - The disclosure relates to a continuous or semi-continuous, cyclic, countercurrent sorption-desorption method for enhanced control, separation, and/or purification of CO | 06-26-2014 |
20140190348 | PRODUCT GAS CONCENTRATOR UTILIZING VACUUM SWING ADSORPTION AND METHOD ASSOCIATED THEREWITH - Systems and methods associated with providing a concentrated product gas utilizing a vacuum swing adsorption process are provided. In one embodiment, the system includes first and second sieve beds, a scavenger pump, and a controller. In one embodiment, the method includes: separating one or more adsorbable components from a source gaseous mixture via first and second sieve beds in alternating and opposing filling and purging cycles of a vacuum swing adsorption process to form the concentrated product gas and pressurizing the concentrated gas for delivery to a user. Other embodiments include selectively controlling a variable restrictor based at least in part on a desired output setting to selectively provide flow between the first and second sieve beds such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding filling cycles. | 07-10-2014 |
20140202330 | Modular, High-Throughput Air Treatment System - Air treatment modules, systems and methods for removing contaminants from indoor air are provided. Device embodiments may include one or more air inlets, one or more air outlets and a plurality of inserts which each include at least one adsorbent material. The inserts may be arranged separate from each other to form a plurality of substantially parallel air flow paths between the one or more air inlets and one or more air outlets. The adsorbent material may be arranged for regeneration within the air treatment module using thermal swing desorption and/or pressure swing desorption. Related systems, methods and articles of manufacture are also described. | 07-24-2014 |
20140326138 | PRESSURE SWING ADSORPTION METHOD - The invention describes a method for enriching at least one component from a gaseous mixture of substances, comprising the steps of (i) contacting a flow of a first gaseous mixture of substances which contains at least one component to be enriched, with a composite material at a first pressure p1 such that the at least one component to be enriched is adsorbed to the composite material and a charged composite material is obtained, said composite material comprising (a) a porous matrix of a fluorine-containing polymer having a percentage of tetrafluoroethylene monomer units of at least 95 mol % based on the total number of monomer units and (b) zeolite particles which are embedded in the matrix and around which matrix filaments extend; (ii) disrupting the flow of the gaseous mixture of substances and (iii) desorbing the at least one component to be enriched from the charged composite material by reducing the pressure to a pressure p2, with p1−p2≧200 mbar, such that a second gaseous mixture of substances is produced and removing the second gaseous mixture of substances from the composite material. | 11-06-2014 |
20140326139 | METHOD FOR PRODUCING NITROGEN GAS, METHOD FOR SEPARATING GAS AND DEVICE FOR PRODUCING NITROGEN GAS - A method for producing nitrogen gas from a raw material gas using a PSA system, the method including using a second adsorbent, which is packed in an auxiliary adsorption tank provided in a line connecting two main adsorption tanks packed with a first adsorbent, to reduce the oxygen concentration within a recovered gas discharged from the main adsorption tank performing a depressurization equalization step, and then introducing the gas into the main adsorption tank performing a pressurization equalization step. | 11-06-2014 |
20150007723 | ADSORPTION BED STRUCTURE AND PROCESS - An adsorbent bed structure and process is disclosed for use in an adsorption based gas separation process. A conventional adsorbent bed in a gas separation process is replaced with a one or more modular compact adsorbent bed units which are connected to make an adsorbent bed structure. The modular design requires lower fabrication and maintenance costs; is easier to transport; and is easier to load with adsorbent material. | 01-08-2015 |
20150047504 | CONTINUOUS OXYGEN PRODUCTION METHOD AND CONTINUOUS OXYGEN ADSORPTION AND DESORPTION DEVICE USING OXYGEN ADSORBING AGENT - Provided are a continuous oxygen adsorption and desorption device and an continuous oxygen adsorption and desorption method using the device, and more particularly, an continuous oxygen adsorption and desorption device for producing high-purity oxygen products by using a plurality of adsorption and desorption towers filled with an oxygen-selecting adsorption and desorption agent selected from BaMg(CO | 02-19-2015 |
20150290579 | ADSORPTION PROCESS FOR THE DEHYDRATION OF ALCOHOL - The present invention includes a process for the dehydration of ethanol by adsorption of water at elevated pressure and for the regeneration (purging) of adsorbent at a lower pressure than the pressure used for the adsorption of water where the ratio of the duration of the regeneration (purge) step to the duration of the water adsorption step is higher than 0.1 and the temperature of adsorption is greater than 260 degree Fahrenheit. | 10-15-2015 |
20150352481 | APPARATUS AND METHOD FOR HYDROGEN RECOVERY IN AN ANDRUSSOW PROCESS - A method and a system for recovering hydrogen from a process for making hydrogen cyanide are described herein. In the method, hydrogen is recovered from a gaseous waste stream of an Andrussow process. The method comprises the following steps: (a) adjusting a reaction mixture comprising methane, ammonia and oxygen to provide the reaction mixture with sufficient oxygen to generate a gaseous waste stream that has at least 40% hydrogen after removal of ammonia and recovery of hydrogen cyanide; and (b) removing components from the gaseous waste stream to generate recovered hydrogen. | 12-10-2015 |
20150360166 | METHODS OF SEPARATING MOLECULES - Disclosed herein are new methods, machines, processes, and systems for separating molecules by determining better materials and process optimization conditions. As a result of these advances, this disclosure provides improved carbon dioxide capture, better flue gas treatments, and more efficient methods of purifying gases have been developed. Optimal sorbents can be obtained by using a computational screening method that selects microporous structures (e.g. zeolites and metal-organic frameworks) from a database of materials with the greatest potential for cost-effective separations. The disclosed methods are the first to consider both the size and shape of the adsorbent material. This is also the first disclosure to consider the process application and cost when selecting which material to use. | 12-17-2015 |
20150375160 | RECOVERING H2 AND C2+ HYDROCARBONS FROM FUEL GAS VIA USE OF A TWO-STAGE PSA PROCESS AND SENDING PSA TAIL GAS TO A GAS RECOVERY UNIT TO IMPROVE STEAM CRACKER FEED QUALITY - The invention provides a process for treating a gas stream comprising hydrogen, methane and C | 12-31-2015 |
20150375161 | SYSTEM AND METHOD FOR INTEGRATED ADSORPTIVE GAS SEPARATION OF COMBUSTION GASES - An integrated fuel combustion system with adsorptive gas separation separates a portion of carbon dioxide from a combustion gas mixture and provides for recycle of separated carbon dioxide to the intake of the fuel combustor for combustion. A process for carbon dioxide separation and recycle includes: admitting combustion gas to an adsorptive gas separation system contactor containing adsorbent material; adsorbing a portion of carbon dioxide; recovering a first product gas depleted in carbon dioxide for release or use; desorbing carbon dioxide from the adsorbent material and recovering a desorbed second product gas enriched in carbon dioxide for sequestration or use; admitting a conditioning fluid into the contactor and desorbing a second portion of carbon dioxide to recover a carbon dioxide enriched conditioning stream; and recycling a portion of the carbon dioxide enriched conditioning stream to an inlet of fuel combustor to pass through the fuel combustor for combustion. | 12-31-2015 |
20150375162 | OXYGEN CONCENTRATOR SYSTEM AND METHOD - A oxygen concentrating system comprising an adsorption column having a first end and a second end, a shell enclosing the column and defining a product gas storage space between the column and the shell, a product conduit connecting the product gas storage space to a product output point, a first conduit comprising at least one first valve having at least a first and second configuration, in the first configuration, compressed air flows from the feed point to the first end, and, in the second configuration, waste gas flows from the first end to the waste point, and a second conduit comprising at least one second valve having at least a first and second configuration, in the first configuration, the product gas flows from the product gas storage space to the second end, and, in the second configuration, the product gas flows from the second end to the storage space. | 12-31-2015 |
20160008753 | Separation and Storage of Fluids Using ITQ-55 | 01-14-2016 |
20160008754 | Separation and Storage of Fluids Using ITQ-55 | 01-14-2016 |
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