Patent application number | Description | Published |
20090320519 | Recovery of Hydrofluoroalkanes - A mixture of air and one or more halogenated alkanes is directed to a gas separation membrane where it is separated into an oxygen, nitrogen, and moisture-enriched and halogenated alkane-depleted permeate and a halogenated alkane-enriched and oxygen, nitrogen, and moisture-depleted retentate. The retentate is directed to a cryogenic condenser where an amount of halogenated alkane is condensed therein. | 12-31-2009 |
20100077796 | Hybrid Membrane/Distillation Method and System for Removing Nitrogen from Methane - A hybrid gas separation membrane/cryogenic distillation method and system produces high purity gaseous methane from a gas mixture containing a majority of methane and a minority of nitrogen. | 04-01-2010 |
20100313750 | Method and System for Membrane-Based Gas Recovery - A fast gas is recovered from a feed gas containing a fast gas and at least one slow gas using a gas separation membrane. A controller may control a control valve associated with a partial recycle of a permeate gas from the membrane for combining with the feed gas. A controller may control a control valve associated with the backpressure of a residue gas from the membrane. | 12-16-2010 |
20110077446 | Membrane Separation of a Mixture of Close Boiling Hydrocarbon Components - Disclosed are membrane-based systems and methods for the separation of mixtures containing close-boiling hydrocarbon components that overcome certain issues associated with prior art devices. | 03-31-2011 |
20110114547 | Systems and Methods for the Separation of Propylene and Propane - Embodiments of the present invention generally disclose membrane-based systems and methods for the separation of propylene and propane that overcome certain issues associated with prior art devices and take advantage of a temperature drop across the associated separation membrane. | 05-19-2011 |
20110138852 | Method of Obtaining Carbon Dioxide From Carbon Dioxide-Containing Gas Mixture - Disclosed are methods of obtaining carbon dioxide from a CO | 06-16-2011 |
20110239700 | Method of Obtaining Carbon Dioxide From Carbon Dioxide-Containing Gas Mixture - Disclosed are methods of obtaining carbon dioxide from a CO | 10-06-2011 |
20110247360 | Method of Obtaining Carbon Dioxide From Carbon Dioxide-Containing Gas Mixture - Disclosed are methods of obtaining carbon dioxide from a CO | 10-13-2011 |
20120067211 | Porous Hollow Fiber Supported Dense Membrane For Hydrogen Production, Separation, Or Purification - A dense hydrogen-permeable layer, such as palladium or palladium alloy, is deposited on a porous hollow fiber. A porous hollow fiber is defined as having an inner diameter of approximately 30 microns to approximately 1500 microns and an outer diameter of approximately 100 microns to approximately 2000 microns. This allows an order-of-magnitude increase in the surface per volume ratio in a hydrogen separation or purification module, or a membrane reformer or reactor. | 03-22-2012 |
20120111051 | Carbon Dioxide Removal Process - A process for efficiently removing carbon dioxide from a hydrocarbon containing feed stream utilizing a membrane separation unit in conjunction with a heat exchanger and a carbon dioxide separation unit wherein the streams obtained in the carbon dioxide separation unit are utilized to provide the cooling effect in the heat exchanger. | 05-10-2012 |
20130186904 | DEVICE FOR STORAGE OF COMPRESSED GAS, METHOD OF MAKING THE SAME, AND METHOD OF USING THE SAME - A container for storing compressed gas includes a plurality of aligned glass capillaries extending into a tubesheet. Each of the capillaries has an open end flush with a front face of the tubesheet. An end cap having a gas outlet connectable to a compressed gas valve or conduit is fitted to the tubesheet in gas-tight fashion to form a high pressure space defined by inner surfaces of the capillaries, the front face of the tubesheet, and inner surfaces of the end cap. | 07-25-2013 |
20130247761 | Method and System for Membrane-Based Gas Recovery - A fast gas is recovered from a feed gas containing a fast gas and at least one slow gas using a gas separation membrane. A controller may control a control valve associated with a partial recycle of a permeate gas from the membrane for combining with the feed gas. A controller may control a control valve associated with the backpressure of a residue gas from the membrane. | 09-26-2013 |
20130255483 | Method and System for Membrane-Based Gas Recovery - A fast gas is recovered from a feed gas containing a fast gas and at least one slow gas using a gas separation membrane. A controller may control a control valve associated with a partial recycle of a permeate gas from the membrane for combining with the feed gas. A controller may control a control valve associated with the backpressure of a residue gas from the membrane. | 10-03-2013 |
20140102298 | Method of Obtaining Carbon Dioxide from a Carbon Dioxide-Containing Gas Mixture - Disclosed are methods of obtaining carbon dioxide from a CO | 04-17-2014 |
20150135951 | METHOD OF USING A STRUCTURED ADSORBENT BED FOR CAPTURE OF CO2 FROM LOW PRESSURE AND LOW PRESSURE CONCENTRATION SOURCES - A structured adsorbent sheet, is provided including a nano-adsorbent powder, and a binder material, wherein the nano-adsorbent powder is combined with the binder material to form an adsorbent material, and a porous electrical heating substrate, wherein the adsorbent material is applied to the porous electrical heating substrate thereby forming a structured adsorbent sheet. | 05-21-2015 |
20150135952 | RTSA METHOD USING ADSORBENT STRUCTURE FOR CO2 CAPTURE FROM LOW PRESSURE AND LOW CONCENTRATION SOURCES - A Temperature Swing Adsorption method for separating a first component, comprising a more adsorbable component, from a feed stream comprising more than 50 mol % of a second component, comprising a less adsorbable component, is provided. The method includes providing an adsorbent structure suitable for adsorbing the first component, the structure being of the parallel passage contactor type, and cyclically implementing the following steps. Passing the feed stream through the adsorbent structure thus adsorbing the first component and producing a stream depleted in the first component and enriched in the second component. Heating the adsorbent structure to desorb the adsorbed first component by means of circulating a heating stream enriched in the first component at a temperature suitable for regeneration. And cooling the structure by means of passing through it more than 50% of the stream enriched in the second component produced in the step a). | 05-21-2015 |
20150136316 | METHOD OF MANUFACTURING A STRUCTURED ADSORBENT BED FOR CAPTURE OF CO2 FROM LOW PRESSURE AND LOW CONCENTRATION SOURCES - A method of forming a structured adsorbent sheet is provided. The method includes, combining a nano-adsorbent powder and a binder material to form an adsorbent material, and sandwiching a porous electrical heating substrate between two layers of adsorbent material. The nano-adsorbent powder may be a nano-particle adsorbent. The nano-adsorbent powder may be selected from the group consisting of crystal zeolite, activated carbon, activated alumina, silica gel, and metal organic framework (MOF). | 05-21-2015 |
20150139862 | STRUCTURED ADSORBENT BED FOR CAPTURE OF CO2 FROM LOW PRESSURE AND LOW CONCENTRATION SOURCES - A structured adsorbent sheet, is provided including a nano-adsorbent powder, and a binder material, wherein the nano-adsorbent powder is combined with the binder material to form an adsorbent material, and a porous electrical heating substrate, wherein the adsorbent material is applied to the porous electrical heating substrate thereby forming a structured adsorbent sheet. | 05-21-2015 |
20150174533 | WOVEN MEMBRANE MODULE WITH CONTROLLED TUBESHEET EPOXY WICKING - A gas separation membrane module is formed from a woven fabric of weft membrane hollow fibers and warp yarns. The membrane module includes an active hollow fiber region spanning the inner edges of the two tubesheets. The membrane module also includes two tubesheets formed by encapsulating membrane fiber on one or both ends. The tubesheet on the end includes a first sub-region adjacent the active fiber and a second sub-region extending from first sub-region to the outer face of the tubesheet. The spacing of the warp threads is relatively denser in the first sub-region than in the active region or the second sub-region. | 06-25-2015 |
20150182921 | CARBON MOLECULAR SIEVE MEMBRANES MADE FROM 6FDA AND DETDA-BASED PRECURSOR POLYMERS - A carbon molecular sieve (CMS) membrane is made by pyrolyzing a film or hollow fiber membrane made of a polyimide polymer or copolymer essentially consisting of repeating units of dianhydride-derived units and diamine-derived units. At least 50% of the dianhydride-derived units are derived from 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane (6FDA). At least 50% of the diamine-derived units are derived from 2,5-diethyl-6-methyl-1,3-diamino benzene (DETDA). | 07-02-2015 |