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7628842 |
Hydrogen purification for fuel cell vehicle
A purification system and method for purifying a hydrogen stream supplied from a storage tank mounted in a vehicle to produce a purified hydrogen stream for use in a PEM fuel cell system that is...
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7588626 |
Composite mixed oxide ionic and electronic conductors for hydrogen separation
A mixed ionic and electronic conducting membrane includes a two-phase solid state ceramic composite, wherein the first phase comprises an oxygen ion conductor and the second phase comprises an...
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7585356 |
Hydrothermally-stable silica-based composite membranes for hydrogen separation
Thin layers of a mixed composition are deposited on a porous substrate by chemical vapor deposition in an inert atmosphere at high temperature. The resulting membrane has excellent stability to...
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7559979 |
Hydrogen separator and method for production thereof
A hydrogen separator is provided, including a porous substrate having a large number of pores communicating from a first surface to a second surface thereof, and having a hydrogen-separating layer...
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7524361 |
Porous hydrogen separation membrane and method for preparing the same
Provided is a hydrogen separation membrane prepared by compression-molding metal microparticles having hydrogen adsorbing properties, wherein the microparticles are composed of 0.5 to 50% by weight...
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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....
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7497896 |
Method of treating a gas mixture comprising propane and propylene
Methods for treating a gas mixture of at least propylene and propane, in order to separate the propylene from the propane. The gas mixture is brought into contact with a membrane enables the...
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7487631 |
System and method for supplying reductants to an emission treatment system
System and method for supplying reductants to an emission treatment system. The system includes a fuel tank adapted to supply a premixed fuel stream that includes a primary component and a...
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7485173 |
Cross-linkable and cross-linked mixed matrix membranes and methods of making the same
The present invention is for novel high performance cross-linkable and cross-linked mixed matrix membranes and the use of such membranes for separations such as for CO 2 /CH 4 , H 2 /CH 4 and...
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7468093 |
Multiple phase alloys and metal membranes for hydrogen separation-purification and method for preparing the alloys and the metal membranes
An Ni—Ti—Nb based multiple phase alloy consists of a combined phase which comprises a phase for the hydrogen permeability and a phase for the resistance to hydrogen embrittlement. The alloy has...
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7462223 |
Method for producing a membrane from a crosslinked polymer blend, and corresponding fuel cell
The present invention relates to a polymer blend membrane comprising a bridged polymer which is produced by a selected process. The membrane of the invention displays a significantly improved...
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7449052 |
Composite structures of membranes that are selectively permeable to hydrogen and combustible gas processors using same
The invention relates to a composite structure consisting of a relatively long filtration bar comprising, from the outside, an ultra-thin layer ( 26 ) that is selectively permeable to hydrogen and...
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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...
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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...
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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...
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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...
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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...
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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....
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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 )...
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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.,...
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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...
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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...
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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...
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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...
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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...
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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...
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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”...
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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...
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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...
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7297183 |
Hydrogen purification devices, components, and fuel processing systems containing the same
Hydrogen purification devices, components thereof, and fuel processors and fuel cell systems containing the same. The hydrogen purification devices include an enclosure, such as a pressure vessel,...
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7288135 |
Solid multicomponent mixed proton and electron conducting membrane
The present invention relates to a solid multicomponent mixed proton and electron conducting membrane for use in a reactor, where the membrane comprises a mixed metal oxide having a structure...
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7258820 |
Ceramic mixed protonic/electronic conducting membranes for hydrogen separation
A multi-phase mixed protonic/electronic conducting material comprising a proton-conducting ceramic phase and an electron conductive ceramic phase. Under the presence of a partial pressure gradient...
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7211706 |
Process for recovering hydrogen in a gaseous hydrocarbon effluent using a membrane reactor
In order to recover hydrogen from a hydrogen-rich gaseous effluent, a procedure is used that comprises:
in a stage (a), bringing a hydrocarbon-rich gaseous effluent into contact with the...
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7087211 |
Hydrogen production by high temperature water splitting using electron conducting membranes
A device and method for separating water into hydrogen and oxygen is disclosed. A first substantially gas impervious solid electron-conducting membrane for selectively passing protons or hydrogen...
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7074255 |
Noble metal gas barriers
A method for separating gases within a barrier, and a metallic barrier separating the gases is provided for use in solid oxide fuel cells, or SOFC. A network of pores can vent steam formed within...
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7052530 |
Hydrogen purification membranes, components and fuel processing systems containing the same
Hydrogen purification membranes, hydrogen purification devices, and fuel processing and fuel cell systems that include hydrogen purification devices. The hydrogen purification membranes include a...
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7045231 |
Direct hydrocarbon reforming in protonic ceramic fuel cells by electrolyte steam permeation
A process for converting hydrocarbons and water vapor into hydrogen, carbon monoxide, and carbon dioxide; a fuel cell device; and a process of utilizing the fuel cell to convert chemical energy to...
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7025805 |
Hydrogen diffusion cell assembly with internal flow restrictor
A hydrogen diffusion cell that is used to purify contaminated hydrogen gas. The hydrogen diffusion cell has at least one hydrogen diffusion structure that separates a first area from a second area....
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7018815 |
Method for producing vitamin B12 from hydrogen-metabolizing methane bacterium
Mesophilic methane bacteria obtained from digested sludge are acclimatized in an H 2 /CO 2 medium and the acclimatized methane bacteria are grown on a support inclusive of inorganic nutritional...
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7014681 |
Flexible and porous membranes and adsorbents, and method for the production thereof
The invention relates to a method for producing flexible and porous adsorbents based on oxidic and/or non-oxidic ceramic material containing carbon. The inventive method is characterized by the...
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6997971 |
Cross-linked polybenzimidazole membrane for gas separation
A cross-linked, supported polybenzimidazole membrane for gas separation is prepared by reacting polybenzimidazole (PBI) with the sulfone-containing crosslinking agent...
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6977007 |
Method for separating a gas mixture with a permeation membrane unit
A method of separating a gas mixture using a permeation membrane unit, wherein the gas mixture, containing primarily hydrogen and carbon monoxide, is first treated to reduce the level of secondary...
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6946015 |
Cross-linked polybenzimidazole membrane for gas separation
A cross-linked, supported polybenzimidazole membrane for gas separation is prepared by layering a solution of polybenzimidazole (PBI) and α,α′dibromo-p-xylene onto a porous support and...
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6911066 |
Method for treating a gas mixture by adsorption
A method for operating a typical cyclic adsorption unit that is easily implemented in both new and existing treatment plants, wherein fluctuations in the stream compositions due to the adsorption...
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6899744 |
Hydrogen transport membranes
Composite hydrogen transport membranes, which are used for extraction of hydrogen from gas mixtures are provided. Methods are described for supporting metals and metal alloys which have high...
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6896717 |
Gas separation using coated membranes
A membrane-based process for separating mixtures of target gases if the gas mixture also contains C 3+ hydrocarbon vapors. The process uses gas-separation membranes having a base membrane and a...
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6828037 |
Hydrogen-permeable structure and method for manufacture thereof or repair thereof
The invention provides a hydrogen permeable structure, which can effectively prevent peeling-off of a hydrogen permeable film and hence has higher durability, and a method of manufacturing the...
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6814780 |
Hollow fiber membrane gas separation cartridge and gas purification assembly
A hollow fiber membrane gas separation apparatus of a compact design suitable for separation and purification of gases is disclosed. The apparatus comprises an outer housing that consists of a...
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6794077 |
Passive water management fuel cell
A proton exchange membrane (PEM) fuel cell includes fuel and oxidant flow field plates ( 26, 40 ) having fuel and oxidant channels ( 27, 28; 41, 44 ), and water channels, the ends ( 29, 48 ) of...
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6777369 |
Process for producing catalyst
The present invention relates to the effective utilization of a used catalyst containing at least molybdenum, an A element (at least one element selected from the group consisting of phosphorus and...
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