Title: Dense, layered membranes for hydrogen separation

Abstract

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 invention also relates to membrane reactors employing the hydrogen-permeable membranes of the invention and to methods for separation of hydrogen from a hydrogen-containing gas using the membranes and reactors. The reactors of this invention can be combined with additional reactor systems for direct use of the separated hydrogen.

Inventors:

Roark, Shane E.; MacKay, Richard; Mundschau, Michael V.

Issue Date:

2006-02-21

Research Org.:

Eltron Research, Inc., Boulder, CO (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1175654

Patent Number(s):

7001446

Application Number:

10/717,218

Assignee:

Eltron Research, Inc. (Boulder, CO)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D2325/26 - Electrical properties
B01D53/228 - {characterised by specific membranes}
B01D69/10 - Supported membranes
B01D69/12 - Composite membranes
B01D69/141 - {Heterogeneous membranes, e.g. containing dispersed material
B01D71/02 - Inorganic material
B01D71/022 - {Metals}
B01D71/024 - {Oxides}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J19/2475 - {Membrane reactors}
B01J23/002 - {Mixed oxides other than spinels, e.g. perovskite}
B01J35/065 - {Membranes}

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F7/02 - of composite layers {

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B2203/0283 - containing a CO-shift step, i.e. a water gas shift step
C01B2203/041 - In-situ membrane purification during hydrogen production
C01B2203/047 - the impurity being carbon monoxide
C01B2203/0475 - the impurity being carbon dioxide
C01B2203/048 - the impurity being an organic compound
C01B2203/0485 - the impurity being a sulfur compound
C01B2203/1041 - Composition of the catalyst
C01B3/16 - using catalysts
C01B3/503 - {characterised by the membrane}
C01B3/505 - {Membranes containing palladium}

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2235/3205 - Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
C04B2235/3213 - Strontium oxides or oxide-forming salts thereof
C04B2235/3215 - Barium oxides or oxide-forming salts thereof
C04B2235/3224 - Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
C04B2235/3227 - Lanthanum oxide or oxide-forming salts thereof
C04B2235/3229 - Cerium oxides or oxide-forming salts thereof
C04B2235/3241 - Chromium oxides, chromates, or oxide-forming salts thereof
C04B2235/3268 - Manganates, manganites, rhenates or rhenites, e.g. lithium manganite, barium manganate, rhenium oxide
C04B2235/3272 - Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
C04B2235/3275 - Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
C04B2235/3277 - Co3O4
C04B2235/3279 - Nickel oxides, nickalates, or oxide-forming salts thereof
C04B2235/405 - Iron group metals
C04B2235/762 - Cubic symmetry, e.g. beta-SiC
C04B2235/768 - Perovskite structure ABO3
C04B2235/80 - Phases present in the sintered or melt-cast ceramic products other than the main phase
C04B35/01 - based on oxide ceramics
C04B35/016 - {based on manganites}
C04B35/04 - based on magnesium oxide
C04B35/117 - Composites
C04B35/2675 - {Other ferrites containing rare earth metals, e.g. rare earth ferrite garnets}
C04B35/2683 - {Other ferrites containing alkaline earth metals or lead}
C04B35/42 - based on chromites
C04B35/44 - based on aluminates
C04B35/443 - Magnesium aluminate spinel
C04B35/46 - based on titanium oxides or titanates
C04B35/4682 - {based on BaTiO3 perovskite phase}
C04B35/47 - based on strontium titanates
C04B35/488 - Composites
C04B35/50 - based on rare-earth compounds {
C04B35/505 - based on yttrium oxide

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C29/12 - based on oxides

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P20/52 - using catalysts, e.g. selective catalysts

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DOE Contract Number:  

FC26-00NT40762

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

08 HYDROGEN