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| Number | Title | Issue Date |
| 8187361 | Effluent gas recovery system in polysilicon and silane plants Purified SiHCl3 and/or SiCl4 are used as a sweep gas across a permeate side of a gas separation membrane receiving effluent gas from a polysilicon reactor. The combined sweep gas and permeate is recycled to the reactor. ... | 05/29/2012 |
| 8167976 | Gas separation membrane system and a method of preparing or reconditioning and the use thereof A gas separation membrane system and a method of preparing such gas separation membrane system by providing a porous support upon which is supported a membrane layer comprising a first gas-selective material and having a membrane thickness and removing therefrom a s... | 05/01/2012 |
| 8133302 | Process for purification of hydrocarbons The present invention relates to a process for the removal of sulfur contaminants from a hydrocarbon stream comprising: (a) providing a gaseous hydrocarbon stream having sulfur contaminants, but having less than 10 ppmw of said sulfur contaminants as thiophenes, to ... | 03/13/2012 |
| 8075670 | Hydrogen permeable module and usage thereof A hydrogen permeable module includes a hydrogen permeable membrane that permeates hydrogen, an outer peripheral part of the hydrogen permeable membrane being restricted, an inside of the outer peripheral part of the hydrogen permeable membrane being not restricted. ... | 12/13/2011 |
| 8057575 | Hydrogen purification membranes, components and fuel processing systems containing the same Hydrogen-producing fuel processing systems, hydrogen purification membranes, hydrogen purification devices, fuel processing and fuel cell systems that include hydrogen purification devices, and methods for operating the same. In some embodiments, operation of the fu... | 11/15/2011 |
| 8048199 | Method of making a leak stable gas separation membrane system A method of preparing a gas separation membrane system and the gas separation membrane system itself, wherein the method includes applying a layer of a gas-selective material to a porous substrate followed by heat-treating thereof in an inert gaseous atmosphere and ... | 11/01/2011 |
| 8002875 | System and method for separating hydrogen gas from a mixed gas source using composite structure tubes A hydrogen purification system that is used to separate hydrogen gas from a mixed gas source. The hydrogen purification system includes a hydrogen separator. Within the hydrogen separator is a first chamber into which the mixed gas source is fed. A plurality of tube... | 08/23/2011 |
| 7998247 | Gas separation membrane comprising a substrate with a layer of coated inorganic oxide particles and an overlayer of a gas-selective material, and its manufacture and use A gas separation membrane and a method of manufacturing such gas separation membrane that comprises a porous substrate treated with a layer of metal-coated inorganic oxide particles and with the layer of such metal-coated inorganic oxide particles being coated with ... | 08/16/2011 |
| 7972417 | Hydrogen gas separator system having a micro-channel construction for efficiently separating hydrogen gas from a mixed gas source A hydrogen purification method that is used to separate hydrogen gas from a source gas. A hydrogen separator into which flows the source. Within the hydrogen separator is at least one hydrogen permeable tube that is made of a hydrogen permeable material. A support t... | 07/05/2011 |
| 7959711 | Gas separation membrane system and method of making thereof using nanoscale metal material A method of manufacturing such gas separation membrane system that includes applying to a surface of a porous substrate a layer of a nanopowder of a gas-selective metal and, thereafter, heat-treating the resultant surface treated porous substrate to yield a heat-tre... | 06/14/2011 |
| 7947116 | Hydrogen separation process A method for separating a hydrogen-rich product stream from a feed stream comprising hydrogen and at least one carbon-containing gas, comprising feeding the feed stream, at an inlet pressure greater than atmospheric pressure and a temperature greater than 200° C., ... | 05/24/2011 |
| 7947117 | Hydrogen purification process that uses a combination of membrane separation units This invention describes a new hydrogen purification process that employs a combination of at least three membrane separation units. This process allows non-stationary operations and is particularly suitable for the production of hydrogen for the purpose of its use ... | 05/24/2011 |
| 7789941 | Hydrogen purification membranes, components and fuel processing systems containing the same Hydrogen-producing fuel processing systems, hydrogen purification membranes, hydrogen purification devices, fuel processing and fuel cell systems that include hydrogen purification devices, and methods for operating the same. In some embodiments, operation of the fu... | 09/07/2010 |
| 7749305 | Composite structure for high efficiency hydrogen separation containing preformed nano-particles in a bonded layer A hydrogen purification system and method that utilizes a hydrogen separator with a novel composite structure. The hydrogen separator has a first porous layer of a hydrogen permeable material. The first porous layer is comprised of premanufactured nano-particles of ... | 07/06/2010 |
| 7749304 | Method for storing hydrogen, and related articles and systems A method for storing hydrogen is described. The hydrogen is infused into hollow spheres. The spheres are made from a polymer which has a tensile strength sufficient to contain hydrogen under selected internal pressure conditions; and has a permeation coefficient whi... | 07/06/2010 |
| 7744675 | Gas separation membrane comprising a substrate with a layer of coated inorganic oxide particles and an overlayer of a gas-selective material, and its manufacture and use A gas separation membrane and a method of manufacturing such gas separation membrane that comprises a porous substrate treated with a layer of metal-coated inorganic oxide particles and with the layer of such metal-coated inorganic oxide particles being coated with ... | 06/29/2010 |
| 7501008 | Hydrogen storage systems and fuel cell systems with hydrogen storage capacity The present invention relates to a gas storage and dispensing system, which comprising a carrier material for a target gas and multiple microtubular elements in contact with such carrier material. Each microtubular element comprises a tubular wall that defines a bor... | 03/10/2009 |
| 7422623 | Separation membrane by controlled annealing of polyimide polymers This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. ... | 09/09/2008 |
| 7416803 | Solid acid electrolytes for electrochemical devices Improved solid acid electrolyte materials, methods of synthesizing such materials, and electrochemical devices incorporating such materials are provided. The stable electrolyte material comprises a solid acid capable undergoing rotational disorder of oxyanion groups... | 08/26/2008 |
| 7407529 | System and method for reducing thermal shock in a hydrogen diffusion cell A system and method of purifying hydrogen gas. The system includes heating elements for heating the hydrogen diffusion cell to a predetermined operational temperature. A preheater is provided for heating unpurified gases that will enter the hydrogen diffusion cell. ... | 08/05/2008 |
| 7404844 | Method for making carbon membranes for fluid separation There is disclosed a method of making a high performance carbon membranes from polymer membranes. The method comprising the steps of exposing polymer precursor compounds to a polar organic liquid before pyrolysis of the exposed polymer precursor compounds. ... | 07/29/2008 |
| 7399339 | Polyoxometalate material for gaseous stream purification at high temperature A method for purification of a gaseous stream having at least one impurity in which a porous material having at least one polyoxometalate-based material is contacted with the gaseous stream and the at least one impurity is passed through the porous material, produci... | 07/15/2008 |
| 7396384 | Fuel cell gas separator A fuel cell gas separator (14) between two planar solid oxide fuel cells (12) comprises a first layer (22) which is formed of a material that is impermeable to gases, a second layer (24) which is formed of a material that is impermeable t... | 07/08/2008 |
| 7396385 | System and method for efficiently separating hydrogen gas from a mixed gas source A hydrogen purification system that is used to separate hydrogen gas from a source gas. The hydrogen purification system has a hydrogen separator into which the source gas is permitted to flow. Within the hydrogen separator is at least one hydrogen permeable tube th... | 07/08/2008 |
| 7393392 | Hydrogen-permeable membrane and process for production thereof According to the present invention there is disclosed a hydrogen-permeable membrane which comprises a ceramic material composed of a nitride of aluminum (Al) and/or silicon (Si), an oxide of aluminum (Al) and/or silicon (Si), or a ... | 07/01/2008 |
| 7393384 | Hydrogen separation using oxygen ion-electron mixed conduction membranes A process for purification of hydrogen from a stream of synthesis gas or other reformate gases is described. The process, generally conducted at temperatures of approximately 800-1000° C., involves the use of a cell in which a mixture of reformate gas and steam are... | 07/01/2008 |
| 7393389 | Apparatus for seperation or synthesis of process substances An apparatus for separation or synthesis of process substances is configured with at least two cell stacks, within each of which there is arranged at least one large-area layer for the separation or synthesis and passages are formed for feeding and discharging at le... | 07/01/2008 |
| 7390347 | Zeolite membranes for selective oxidation of carbon monoxide in mixed hydrogen gas source Methods and apparatus are taught for selectively oxidizing carbon monoxide in a source of gas containing carbon monoxide and hydrogen. A gas containing carbon monoxide and hydrogen is fed into a membrane reactor (10, 50, 60) capable of selectively absorbing t... | 06/24/2008 |
| 7384620 | Method and system for producing hydrogen by reforming hydrogen-containing gas A hydrogen reforming system includes a cyclical compression chamber having an entry port for receiving hydrogen-containing gas and an exit port for delivering reformed hydrogen-containing gas, an arrangement for heating the hydrogen-containing gas to a non-combustib... | 06/10/2008 |
| 7377961 | Hydrogen vent for optoelectronic packages with resistive thermal device (RTD) Thermally tuned lasers may use a resistive thermal device (RTD), sensitive to hydrogen, within a hermetic enclosure. Over time, hydrogen trapped within the enclosure or out gassed from other components within the enclosure may degrade the accuracy of the RTD. A vent... | 05/27/2008 |
| 7371322 | Filtration system and dynamic fluid separation method A filtration system is provided with filter media operable to remove solids, particulate and colloidal matter from a process fluid. The filtration system may include one or more porous membranes which are anchored or secured on their periphery with a large open work... | 05/13/2008 |
| 7368000 | Treatment of effluent gases A method is described for recovering a noble gas, such as xenon or krypton, from a first gas mixture comprising a plurality of components, one of which is the noble gas and the others are typically helium and/or nitrogen, argon, and relatively light fluorocarbons. T... | 05/06/2008 |
| 7351275 | Carbon monoxide production process The present invention provides for a process for producing carbon monoxide. A feed gas stream of hydrogen, carbon monoxide and carbon dioxide is directed to a membrane unit which separates the feed gas stream into two streams. The stream containing carbon monoxide i... | 04/01/2008 |
| 7351750 | Method for producing long-chain hydrocarbons from natural gas Natural gas is reacted with steam for generating carbon monoxide and hydrogen in a first catalytic reactor. The resulting gas mixture is used to perform Fischer-Tropsch synthesis in a second catalytic reactor. After performing Fischer-Tropsch synthesis, the remainin... | 04/01/2008 |
| 7335312 | Centrifuge with combinations of multiple features A centrifuge with combinations of multiple features is disclosed. In one aspect, a centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a sleeve. The fluid separation wall rotates around the axis of rotation.... | 02/26/2008 |
| 7323034 | Space group Cp2 alloys for the use and separation of hydrogen A hydrogen permeation membrane is provided having a cP2 Pearson symbol (Pm3m space group) structure. Suitable alloys include an “A” element from Periodic Table groups 3b-5b and an “M” element from the Periodic Table groups 6b-1b present at a stoichiometry th... | 01/29/2008 |
| 7323040 | Membrane module for the separation of hydrogen and method for the production thereof A membrane module for the separation of hydrogen is configured for parallel flows and contains a plurality of planar membrane cells which respectively comprise two hydrogen-selective planar membranes respectively surrounded by a flat membrane frame. An air-permeable... | 01/29/2008 |
| 7320750 | Centrifuge with controlled discharge of dense material A centrifuge with controlled discharge of dense materials disclosed. A centrifuge includes a fluid separation wall placed within a sleeve to form a containment zone therebetween. The fluid separation wall aligns and rotates parallel to an axis of rotation. A recepta... | 01/22/2008 |
| 7314504 | Porous gas permeable material for gas separation A gas separator, a method for producing the gas separator, and a method for separating gases based on a property of inelasticity of the gases. The inventive gas separator is a permeable porous material for separating a mixture of gases by selectable pore size exclus... | 01/01/2008 |
| 7312440 | Integrated micro fuel processor and flow delivery infrastructure Apparatus for transporting a fluid, atomizers, reactors, integrated fuel processing apparatus, combinations thereof, methods of atomizing reactants, methods of moving fluids, methods of reverse-flow in a reactor, and combinations thereof, are provided. One exemplary... | 12/25/2007 |
