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6649559 |
Supported metal membrane, a process for its preparation and use
The invention provides a supported metal membrane which contains a metal membrane on a support surface of a porous membrane support. The supported metal membrane is obtainable by applying the metal...
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6641647 |
Hydrogen-permeable structure and method of manufacturing the same
A hydrogen permeable structure includes a base material ( 1 ) including porous ceramic, and a hydrogen permeable film ( 2 ) formed on the base material ( 1 ), including palladium (Pd) and at least...
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6613132 |
Hydrogen diffusion cell assembly with perforated output tube
A hydrogen diffusion cell that is used to purify contaminated hydrogen gas. The hydrogen diffusion cell has a supply tube that supplies contaminated hydrogen gas into a confined area and a drain...
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6602325 |
Fluid separation assembly
A fluid separation assembly having a fluid permeable membrane and a wire mesh membrane adjacent the fluid permeable membrane, wherein the wire mesh membrane supports the fluid permeable membrane...
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6572683 |
Substance separation structure and method of preparing the same
A substance separation structure comprises a base material including a porous material having a continuous hole with an opening of the hole formed on at least one surface, a porous layer, formed to...
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6569226 |
Metal/ceramic composites with high hydrogen permeability
A membrane for separating hydrogen from fluids is provided comprising a sintered homogenous mixture of a ceramic composition and a metal. The metal may be palladium, niobium, tantalum, vanadium, or...
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6554015 |
Single piece silver/palladium cell for adjusting or measuring a level of hydrogen and methods therefor
The invention is directed to a silver/palladium (AgPd) cell for adjusting or measuring a level of hydrogen in a high pressure environment, a high temperature environment, and/or an environment...
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6547858 |
Hydrogen-permeable metal membrane and hydrogen purification assemblies containing the same
A hydrogen-permeable metal membrane with increased hydrogen flux compared to conventional metal membranes is disclosed. Without sacrificing selectivity, the membrane enables a greater throughput of...
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6541676 |
Integrated palladium-based micromembranes for hydrogen separation and hydrogenation/dehydrogenation reactions
The present invention relates to gas separation membranes including a metal-based layer having sub-micron scale thicknesses. The metal-based layer can be a palladium alloy supported by ceramic...
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6527832 |
Device for recovery of hydrogen
The new hydrogen-recovering device 10 has a box-shaped frame 11 made of stainless steel having a takeout pipe 12 attached to its one side. A plurality of spacers 13 are arranged inside the...
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6511521 |
Purifier of hydrogen from reformer for fuel cell
Contaiminated hydrogen gas from a catalytic steam reformer is purified by passing it through a membrane assembly having a metallic membrane sealed between two tubular stainless steel members having...
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6503298 |
Apparatus and methods for hydrogen separation/purification utilizing rapidly cycled thermal swing sorption
The present invention provides apparatus and methods for separating hydrogen. In preferred embodiments, the apparatus and methods utilize microchannel devices with small distances for heat and mass...
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6478853 |
Amorphous Ni alloy membrane for separation/dissociation of hydrogen, preparing method and activating method thereof
There is disclosed a membrane for separation and dissociation of hydrogen, which comprises an amorphous alloy comprising at least one selected from the group consisting of Zr and Hf, and Ni. The...
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6475268 |
Supported membrane for hydrogen separation
A supported membrane for separation of hydrogen in a fuel cell includes a microetched foil to form a substrate. The supported membrane also includes a membrane metal of a metal alloy deposited over...
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6464759 |
Hydrogen diffusion cell assembly and its method of manufacture
A hydrogen diffusion cell that is used to purify contaminated hydrogen gas. The hydrogen diffusion cell has a supply tube that supplies contaminated hydrogen gas into a confined area and a drain...
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6461408 |
Hydrogen generator
An apparatus for extracting a gas, in particular hydrogen, from a fluid stream utilizing a plate membrane flattened with a wave spring on the low pressure side of the membrane and a turbulence...
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6419728 |
Hydrogen-permeable metal membrane and method for producing the same
A hydrogen-permeable metal membrane with increased hydrogen flux compared to conventional metal membranes is disclosed. Without sacrificing selectivity, the membrane enables a greater throughput of...
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6372363 |
Method of improving and optimizing the hydrogen permeability of a palladium-copper membrane and novel membranes manufactured thereby
Novel heat treatment techniques for improving and optimizing the hydrogen permeability of thin palladium-copper alloy foil membranes and, in particular, Pd/40%Cu alloy membranes.
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6355093 |
Two component-three dimensional catalysis
This invention relates to catalytic reactor membranes having a gas-impermeable membrane for transport of oxygen anions. The membrane has an oxidation surface and a reduction surface. The membrane...
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6350297 |
Gas separation devices
A gas separation device for the removal of carbon oxides from a hydrogen-rich gas stream in the form of a composite comprising a hydrogen diffusion membrane and a methanation catalyst. The hydrogen...
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6332913 |
Membrane module for selective gas separation
A membrane module for selective gas separation includes one or more separation units stacked one on the other, and at least one of interposed frame plates or stack-end frame plates. Each separation...
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6315820 |
Method of manufacturing thin metal alloy foils
A method of manufacturing thin foil alloys through a series of steps. A carrier having a polished carrier surface is placed within a deposition chamber. The carrier surface is generally polished to...
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6293995 |
Chromatograph having a gas storage system
A chromatograph includes an inlet for receiving a sample and a pressurized hydrogen gas flow and in response providing a sample/fluid mixture; a separation column located in a...
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6267801 |
Method for producing a tubular hydrogen permeation membrane
A method for producing a tubular hydrogen permeation membrane comprising: (a) adhering at least one layer containing palladium, at least one palladium alloy, platinum, or at least one platinum...
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6238465 |
Method of producing thin palladium-copper and the like, palladium alloy membranes by solid-solid metallic interdiffusion, and improved membrane
A novel method of producing an improved thin hydrogen-selective palladium-alloy membrane, through solid-solid interdiffusion of thin films or layers of palladium and a palladium-enhancing metal,...
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6235417 |
Two-phase hydrogen permeation membrane
A two-phase proton and electron conductor is described which comprises (a) a proton conductive oxides represented by the formula: ABO 3 where A is selected from the group consisting of Ba, Ca, Mg...
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6231831 |
Hydrogen separating membrane, methanol reformation system equipped therewith, and operating method therefor
A membrane for separating hydrogen from a gas mixture is provided on at least one side with a catalyst layer for a specific catalytic combustion process. A methanol reformation system so equipped...
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6228147 |
Method for operation of membrane reactor, and membrane reactor used therein
A method for operation of membrane reactor is provided. In a membrane reactor, the hydrogen formed in the hydrogen formation portion of the reaction chamber is transmitted to the hydrogen...
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6221117 |
Hydrogen producing fuel processing system
A fuel processing system is disclosed. The system includes a steam reformer adapted to produce hydrogen from a feedstock consisting of water and at least one of an alcohol and a hydrocarbon...
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6214090 |
Thermally tolerant multilayer metal membrane
A composite metal membrane including a first metal layer of a Group IVB or Group VB metal sandwiched between two layers of a Group VIIIB metal selected from the group consisting of palladium,...
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6183542 |
Method and apparatus for purifying hydrogen
An assembly for separating molecular hydrogen from a volume of gas. The assembly includes a first conduit through which a gas at a first pressure flows, wherein the gas at least partially contains...
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6179902 |
Apparatus for recovering, refining, and storing hydrogen gas
An apparatus for recovering, refining, and storing hydrogen gas, includes: a recovery and refinement line for recovering and refining hydrogen gas used for a hydrogen furnace or used as a process...
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6171574 |
Method of linking membrane purification of hydrogen to its generation by steam reforming of a methanol-like fuel
A novel method and apparatus for one-step linking of membrane permeation of hydrogen to the generation by steam reforming of a methanol-like fuel that comprises bounding a longitudinal flow path of...
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6171712 |
Palladium and palladium/copper thin flat membranes
This invention is a method for making a thin, flat metal membrane of palladium or palladium/copper alloy. It involves sputtering the metal onto a flat surface of a substrate under conditions such...
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6165438 |
Apparatus and method for simultaneous recovery of hydrogen from water and from hydrocarbons
Apparatus and method for simultaneous recovery of hydrogen from water and from hydrocarbon feed material. The feed material is caused to flow over a heated catalyst which fosters the water-gas...
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6152987 |
Hydrogen gas-extraction module and method of fabrication
A hydrogen gas-extraction module includes an intermediate layer bonded between a porous metal substrate and a membrane layer that is selectively permeable to hydrogen. The metal substrate includes...
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6126726 |
Generator hydrogen purge gas economizer with membrane filter
A turbine generator hydrogen filtration system having an improved membrane filter for the removal of gases and particulates is provided. The system comprises a membrane filter operably connected...
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6066592 |
Gas separator
A gas separator includes a porous substrate having fine pores opened on its surface and a metal for separating a gas, the porous substrate having fine pores having an average diameter of 0.1-3.0...
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5958098 |
Method and composition in which metal hydride particles are embedded in a silica network
A silica embedded metal hydride composition and a method for making such a composition. The composition is made via the following process: A quantity of fumed silica is blended with water to make a...
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5955044 |
Method and apparatus for making ultra-pure hydrogen
Ultra-high purity hydrogen is produced from a hydrogen stream containing impurities including carbon monoxide and carbon dioxide, by first depleting the stream of carbon monoxide and carbon...
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5931987 |
Apparatus and methods for gas extraction
An apparatus (5) and methods for extracting a gas, especially hydrogen, from a fluid stream includes a pressure vessel (12) having an inlet (22) and at least one outlet (26) for allowing fluid flow...
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5904754 |
Diffusion-bonded palladium-copper alloy framed membrane for pure hydrogen generators and the like and method of preparing the same
A hydrogen-selective thin Pd/40% Cu membrane as for use as a wall connecting high and low pressure chambers of a hydrogen generator, comprising the foil having its edge area diffusion-bonded to a...
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5895519 |
Method and apparatus for purifying hydrogen gas
A method and apparatus for providing substantially pure hydrogen gas from a mixture of hydrogen and gaseous contaminants includes passing a gaseous mixture containing hydrogen gas and gaseous...
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5888273 |
High temperature gas purification system
A high temperature membrane reactor or gas purification apparatus includes a housing containing a gas heating chamber and a gas extraction component, preferably one or more tubular membranes. The...
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5782960 |
Hydrogen separation member
A hydrogen separation membrane has a hydrogen-permeable metal foil laminated to a porous metal support. The metal support comprising a laminate of metal-reinforcing plates each having a plurality...
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5782959 |
Process for preparing a composite inorganic membrane for hydrogen separation
The present invention relates to a process for preparing a composite inorganic membrane for hydrogen separation, more specifically, to a process for preparing a composite inorganic membrane for...
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5738708 |
Composite metal membrane
A composite metal membrane including a first metal layer of Group IVB met or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or...
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5645626 |
Composite hydrogen separation element and module
There are disclosed improvements in multicomponent composite metal membranes useful for the separation of hydrogen, the improvements comprising the provision of at least one common-axis hole...
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5518530 |
Connected body comprising a gas separator and a metal, and apparatus for separating hydrogen gas from a mixed gas
A connected body including a gas separator 10 and metallic members 21 and 22, each of which has a partly oxidized surface to be reliably connected with the gas separator. The gas separator includes...
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5449848 |
Dehydrogenation process
A dehydrogenation apparatus comprising a dehydrogenation reaction chamber and a hydrogen combustion chamber adjoining to the dehydrogenation chamber through a hydrogen-permeable membrane, wherein...
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