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| Number | Title | Issue Date |
| 8105563 | Methods of controlling hydrogen concentrations in an offgas system of a nuclear reactor by passive air injection Example embodiments relate to methods of controlling hydrogen concentrations in an offgas system of a nuclear reactor by passive air injection. A method according to a non-limiting embodiment may include passively injecting ambient air through the hydrogen water che... | 01/31/2012 |
| 8071063 | Separation of hydrogen from hydrocarbons utilizing zeolitic imidazolate framework materials The present invention relates to the selective separation of hydrogen (“H2”) hydrocarbons in streams containing both hydrogen and hydrocarbons (e.g. methane, ethylene, ethane, propylene, propane, etc.) utilizing a zeolitic imidazolate framework (“ZI... | 12/06/2011 |
| 7485277 | Method for absorbing hydrogen using an oxidation resisant organic hydrogen getter A composition for removing hydrogen from an atmosphere, comprising a mixture of a polyphenyl ether and a hydrogenation catalyst, preferably a precious metal catalyst, and most preferably platinum, is disclosed. This composition is stable in the presence of oxygen, w... | 02/03/2009 |
| 7357902 | Process for the removal of oxygen from olefin-containing process streams Process for the removal of oxygen from a gas mixture comprising oxygen, at least one olefin, hydrogen, carbon monoxide and optionally at least one alkyne, the ratio of oxygen:hydrogen in the gas mixture being 1 part by volume of oxygen to at least 5 parts by volume ... | 04/15/2008 |
| 7329290 | Fuel reforming apparatus for producing a carbon-monoxide free reformed fuel gas comprising hydrogen This invention relates to a fuel reforming apparatus for producing a carbon-monoxide free reformed fuel gas comprising hydrogen. More particularly, this invention relates to nonthermal plasma reactors for removing carbon monoxide from a reformed fuel gas produced fr... | 02/12/2008 |
| 7329399 | Hydrogen trapper compound, method for the production and uses thereof A hydrogen-trapping compound is provided, along with a process for manufacturing the compound, and its uses, wherein the hydrogen-trapping compound is characterized in that it contains at least one metal salt of formula MX(OH), in which M represents a divalent trans... | 02/12/2008 |
| 7238215 | Integrated process and installation for the production of synthesis gas In an integrated process for the production of synthesis gas, a partial oxidation unit and a steam methane reformer are used to convert natural gas or another fuel to first and second mixtures of at least carbon monoxide and hydrogen, only the first process consumin... | 07/03/2007 |
| 7227049 | Ni catalysts and methods for alkane dehydrogenation Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), tungsten (W), y... | 06/05/2007 |
| 7163670 | Membrane for hydrogen recovery from streams containing hydrogen sulfide A membrane for hydrogen recovery from streams containing hydrogen sulfide is provided. The membrane comprises a substrate, a hydrogen permeable first membrane layer deposited on the substrate, and a second membrane layer deposited on the first layer. The second laye... | 01/16/2007 |
| 7157401 | Catalyst for the treatment of organic compounds A catalyst for the hydroprocessing of organic compounds, composed of an interstitial metal hydride having a reaction surface at which monatomic hydrogen is available. The activity of the catalyst is maximized by avoiding surface oxide formation. Transition metals an... | 01/02/2007 |
| 7125440 | Composite structure for high efficiency hydrogen separation and its associated methods of manufacture and use 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, such as a palladium alloy. A solid layer of the same hydrogen permeable m... | 10/24/2006 |
| 7122170 | Catalysts for SPOC™ enhanced synthesis gas production A process and system for producing synthesis gas by a SPOC® enhanced catalytic partial oxidation process is disclosed. Light hydrocarbons in a H2S-containing feed gas are partially oxidized to produce hydrogen and carbon monoxide over a catalyst that sim... | 10/17/2006 |
| 7115236 | Exhaust gas purifying method and system for fuel cell vehicle An exhaust gas purifying method for a fuel cell vehicle comprises preparing an exhaust gas purifying system for the fuel cell vehicle, the exhaust gas purifying system including a methane removal catalyst for accelerating the conversion of methane into hydrogen and ... | 10/03/2006 |
| 7108842 | Process for the catalytic partial oxidation of HS using staged addition of oxygen A multistage oxygen-added catalytic partial oxidation process and apparatus for converting H2S in an acid gas stream to elemental sulfur and water are disclosed. Each staged addition of oxygen or air at the top of the catalyst bed and at points along the ... | 09/19/2006 |
| 7094384 | Combined methane decomposition and ammonia formation cell An ammonia synthesis process and apparatus are provided which are energy efficient and minimize greenhouse-gas-emission during the processing of natural gas and air. In the process a stream of natural gas is divided into two streams, one of which is mixed with air a... | 08/22/2006 |
| 7087802 | Method for the dehydrogenation of hydrocarbons In a process for the heterogeneously catalyzed dehydrogenation in one or more reaction zones of one or more dehydrogenatable C2-C30-hydrocarbons in a reaction gas mixture comprising them, with at least part of the heat of dehydrogenation requir... | 08/08/2006 |
| 7088106 | Device and method for the measurement of gas permeability through membranes A device for the measuring membrane permeability in electrical/electrochemical/photo-electrochemical fields is provided. The device is a permeation cell and a tube mounted within the cell. An electrode is mounted at one end of the tube. A membrane is mounted within ... | 08/08/2006 |
| 7037484 | Plasma reactor for cracking ammonia and hydrogen-rich gases to hydrogen Processes and systems for generating hydrogen gas from resonant cavities are disclosed. A preferred version includes separating a resonant cavity into two compartments with a dielectric type diaphragm, injecting gases such as ammonia into one compartment and generat... | 05/02/2006 |
| 7022165 | Tubular hydrogen permeable metal foil membrane and method of fabrication A tubular hydrogen permeable metal membrane and fabrication process comprises obtaining a metal alloy foil having two surfaces, coating the surfaces with a metal or metal alloy catalytic layer to produce a hydrogen permeable metal membrane, sizing the membrane into ... | 04/04/2006 |
| 7001867 | Rare earth aluminates and gallates supported rhodium catalysts for catalytic partial oxidation of hydrocarbons The present invention relates to improved catalyst compositions, as well as methods of making and using such compositions. In particular, preferred embodiments of the present invention comprise rare earth catalyst supports, catalyst compositions having rare earth su... | 02/21/2006 |
| 7001446 | Dense, layered membranes for hydrogen separation This invention provides hydrogen-permeable membranes for separation of hydrogen from hydrogen-containing gases. The membranes are multi-layer having a central hydrogen-permeable layer with one or more catalyst layers, barrier layers, and/or protective layers. The in... | 02/21/2006 |
| 7001535 | Polymer formulation for removing hydrogen and liquid water from an enclosed space This invention describes a solution to the particular problem of liquid water formation in hydrogen getters exposed to quantities of oxygen. Water formation is usually desired because the recombination reaction removes hydrogen without affecting gettering capacity a... | 02/21/2006 |
| 6949230 | Solid state oxygen anion and electron mediating membrane and catalytic membrane reactors containing them This invention relates to gas-impermeable, solid state materials fabricated into membranes for use in catalytic membrane reactors. This invention particularly relates to solid state oxygen anion- and electron-mediating membranes for use in catalytic membrane reactor... | 09/27/2005 |
| 6946111 | Short contact time catalytic partial oxidation process for recovering sulfur from an H2S containing gas stream A process for removing sulfur from a H2S-containing gas stream is disclosed. A preferred embodiment of the process comprises incorporating a short contact time catalytic partial oxidation reactor, a cooling zone, and a condenser into a conventional refine... | 09/20/2005 |
| 6921516 | Reactor system including auto ignition and carbon suppression foam A reactor system including a reactor housing having an inlet portion defined at one end of the housing and having a discharge opening formed in the housing at an opposite end. An air intake charge line is connected to the housing for charging air into the inlet port... | 07/26/2005 |
| 6916756 | Regeneration of a dehydrogenation catalyst A process for regenerating a dehydrogenation catalyst comprises the steps (a)-(f): (a) flushing with inert gas at a pressure of from 0.5 to 2.0 bar and a gas hourly velocity of from 1000 to 50 000 h−1; (b) passing an oxygen-con... | 07/12/2005 |
| 6903259 | Thermoelectric device for use with fuel reformer and associated method A fuel reforming system comprises a fuel reformer and a thermoelectric device positioned in thermal communication with the fuel reformer. A method of generating electrical energy is also disclosed. ... | 06/07/2005 |
| 6759018 | Method for point-of-use treatment of effluent gas streams A system for abating undesired component(s) from a gas stream containing same, such as halocompounds, acid gases, silanes, ammonia, etc., by scrubbing of the effluent gas stream with an aqueous scrubbing medium. Halocompounds, such as fluorine, fluorides, perfluoroc... | 07/06/2004 |
| 6740226 | Process for increasing hydrogen partial pressure in hydroprocessing processes In a hydrocracking unit, the flash gases from the high-pressure separator are fed to the bottom of an absorption zone where the entering gases are counter-currently contacted with a lean solvent. The lean solvent absorbs away the contained methane, ethane, propane, ... | 05/25/2004 |
| 6706247 | Self regulating formulations for safe hydrogen gettering A method and composition are disclosed for preventing uncontrolled exothermic reaction in the presence of a catalyst. A catalyst deployed as a finely divided powder which is attached to the surface of a low melting point wax or wax-like material which is utilized as... | 03/16/2004 |
| 6685903 | Method of purifying and recycling argon This invention is directed to a method for purifying argon from an impure argon stream. If the oxygen concentration in the impure argon is less than about 10 mole percent of oxygen, the invention is proceeded in the sequential steps of a) removing chlorin... | 02/03/2004 |
| 6660240 | Gas processing agent and manufacturing method therefor, gas purification method, gas purifier and gas purification apparatus The present invention relates to a gas processing agent for removing carbon monoxide, hydrogen, carbon dioxide and water vapor in a gas at the same time, which can maintain a high oxidation activity and have a long life time, a manufacturing method theref... | 12/09/2003 |
| 6602808 | Process for manufacturing semiconductor integrated circuit device including treatment of gas used in the process In a gas-phase treating process of a semiconductor wafer using hydrogen, there is provided a technique for safely eliminating the hydrogen in an exhaust gas discharged from a gas-phase treating apparatus. The profile at the end portions of the side walls ... | 08/05/2003 |
| 6589493 | Gas purification-treating agents and gas purifying apparatuses Disclosed are a gas purification-treating agent and a gas purifying apparatus, which treat carbon monoxide and/or hydrogen contained in a gas in the presence of oxygen. The gas purification-treating agent consists of an adsorbent having carbon dioxide and... | 07/08/2003 |
| 6572681 | Purification of gases Carbon monoxide (CO) is removed from a nitrogen and CO containing gas stream such as feed air to an air separation process for recovery of a nitrogen product gas stream or a nitrogen product gas stream from an air separation process by adsorbing CO from s... | 06/03/2003 |
| 6528441 | Hydrogen storage composition and method A hydrogen storage composition based on a metal hydride dispersed in an aerogel prepared by a sol-gel process. The starting material for the aerogel is an organometallic compound, including the alkoxysilanes, organometals of the form M(OR)x and MOxRy, whe... | 03/04/2003 |
| 6511640 | Purification of gases A process for producing a purified gaseous product from a gaseous feedstream such as air containing impurities is disclosed. The impurities such as hydrogen, water vapor, carbon monoxide and carbon dioxide are removed from the gaseous feedstream in a vess... | 01/28/2003 |
| 6491844 | Self regulating formulations for safe hydrogen gettering A method and composition are disclosed for preventing uncontrolled exothermic reaction in the presence of a catalyst. A catalyst deployed as a finely divided powder which is attached to the surface of a low melting point wax or wax-like material which is ... | 12/10/2002 |
| 6491884 | In-situ air oxidation treatment of MOCVD process effluent An effluent abatement system for abating hydride species in a hydride-containing effluent, arranged for carrying out the steps of: (1) contacting the hydride-containing effluent with a dry scrubber material comprising a metal oxide that is reactive with t... | 12/10/2002 |
| 6403049 | Hydrogen purification A process for purifying a gas stream containing hydrogen and carbon monoxide consisting of one or more catalysed reactions for the selective removal of carbon monoxide from the gas stream wherein a controlled amount of liquid water is introduced into the ... | 06/11/2002 |
