JP2008513337A5 - - Google Patents

Claims (17)

a) a reaction chamber comprising a catalyst bed adapted to produce a reaction product comprising hydrogen gas from a hydrogen production feed; and
b) at least one hydrogen selective hydrogen permeable gas separation adapted to receive the reaction product from the catalyst bed and to separate the reaction product into a (1) hydrogen-containing product stream and (2) a by-product stream. A reactor comprising a module,
The gas separation module comprises:
(i) a porous substrate;
(ii) an intermediate layer comprising particles and a binder metal in a porous substrate, wherein the binder metal is distributed in the intermediate layer; and
(iii) A reactor comprising a hydrogen selective membrane overlaid on an intermediate layer. The reactor of claim 1, wherein the intermediate layer of the gas separation module comprises at least two sublayers of particles and binder metal . The reactor according to claim 1 or 2 , wherein at least one distributed combustion chamber is in a heat conductive relationship with the catalyst bed . The reactor according to any one of claims 1 to 3 , wherein the gas separation module is a pipe . Intermediate layer of the gas separation module, the proximal surface of the intermediate layer of the porous substrate toward the surface of the distal of the intermediate layer of the porous substrate containing a gradient of particle sizes, any claim 1-4 Or the reactor described . Metal hydride precursor is separated by the gas separation module from the reaction chamber, wherein are metal hydride precursor communicated with the gas separation module and the gas flow, said metal hydride precursor, the gas separation module 6. A reactor according to any one of claims 1 to 5 , arranged to react with hydrogen permeating to form a metal hydride . The hydrogen-selective membrane is formed of palladium or an alloy thereof with at least one metal selected from the group consisting of copper, silver, gold, platinum, ruthenium, rhodium, yttrium, cerium and indium. A porous ceramic substrate or a porous metal substrate selected from the group consisting of stainless steel, alloys containing chromium and nickel, nickel-based alloys, and alloys containing chromium, nickel and molybdenum. 6. The reactor according to any one of 6 . The reactor according to any one of claims 1 to 7 , wherein the binder metal is a hydrogen-selective hydrogen-permeable metal or an alloy thereof . The reactor according to any one of claims 1 to 8 , wherein the particles of the intermediate layer are selected from the group consisting of metal particles, metal oxide particles such as aluminum oxide particles, ceramic particles, zeolite particles, and combinations thereof . The reactor according to any one of claims 1 to 9 , wherein the particles of the intermediate layer are preactivated powders . The reactor according to any of claims 1 to 10 , wherein the intermediate layer has an average thickness of 0.3 micrometers to 3 micrometers . Further comprising an additional particles as well as additional binder metal deposited on said further particles are deposited particles and the binder metal, a reactor in accordance with claim 1-11.   The reactor of claim 1, wherein the reactor is a steam reforming reactor and the catalyst bed is a steam reforming catalyst bed.   The reactor of claim 1, wherein the reactor is a dehydrogenation reactor and the catalyst bed is a dehydrogenation catalyst bed. (a) in a steam reforming reaction chamber containing a reforming catalyst for producing mainly a mixture of hydrogen and carbon dioxide and a smaller amount of carbon monoxide, at a temperature of 200 ° C. to 700 ° C. and about 0.1 MPa to about Reacting water vapor with the hydrogen-generating feedstock at a pressure of 20.0 MPa; and
(b) separating hydrogen from the mixture produced by the reforming reaction using a hydrogen selective hydrogen permeable gas separation module; wherein the gas separation module comprises:
(i) a porous substrate;
(ii) an intermediate layer comprising particles and a binder metal in a porous substrate, wherein the binder metal is distributed in the intermediate layer; and
(iii) A steam reforming method for the production of hydrogen, comprising a hydrogen selective membrane layered on an intermediate layer. The process according to claim 15, wherein the reactor according to claim 1 is used.   An integrated steam reforming reactor-hydrogen fuel cell comprising a reactor according to claim 1, wherein a product stream containing hydrogen is delivered from the reactor to the anode compartment of the hydrogen fuel cell, and a substream from the reactor. A hydrogen fuel cell, wherein the product stream is delivered to the cathode compartment of the hydrogen fuel cell.