# US 2012/0310027 A1 · Proton conducting membrane

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2012/0310027 A1
- Document ID: US20120310027A1
- Status: Published application
- Kind: A1
- Application number: 13/578,361
- Filed: 2011-02-10
- Published: 2012-12-06
- Earliest claimed: 2010-02-12
- Assignees: Protia, LLC
- Inventors: Christian Kjølseth; Per Christian Vestre
- Web page: https://patentgrep.com/patent/US20120310027A1

## CPC

- C01B 3/26: using catalysts
- C07C 2/76: by condensation of hydrocarbons with partial elimination of hydrogen
- C07C 5/322: {with metal oxides or metal sulfides}
- C07C 5/333: Catalytic processes
- H01M 4/9033: {Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites}
- C01B 2203/0405: Purification by membrane separation
- C01B 2203/1047: Group VIII metal catalysts
- C01B 2203/1058: Nickel catalysts
- C01B 2203/1064: Platinum group metal catalysts
- C01B 2203/107: Platinum catalysts
- C07C 2521/04: Alumina
- C07C 2523/22: Vanadium
- C07C 2523/26: Chromium
- C07C 2523/28: Molybdenum
- C07C 2523/42: Platinum
- C07C 2523/44: Palladium
- C07C 2523/50: Silver
- C07C 2523/745: Iron
- C07C 2523/755: Nickel
- C07C 2529/24: Iron group metals or copper
- C07C 2529/48: containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- C07C 2529/70: of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65
- C07C 2529/85: Silicoaluminophosphates (SAPO compounds)
- Y02E 60/50: Fuel cells
- Y10T 428/24997: Of metal-containing material
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A reactor comprising a first zone comprising a dehydrogenation catalyst and a second zone separated from said first zone by a proton conducting membrane comprising a mixed metal oxide of formula (I) LnaWbO12−y wherein Ln is Y or an element numbered 57 to 71; the molar ratio of a:b is 4.8 to 6, preferably 5.3 to 6; and y is a number such that formula (I) is uncharged, e.g. y is 0≦y≦1.8.

## Claims

### Claim 1

A proton conducting membrane comprising a dehydrogenation catalyst and at least one mixed metal oxide of formula (II)
LnaWb−cMocO12−y (II)
wherein Ln is Y or an element numbered 57 to 71;
the molar ratio of a:b is 4.8 to 6; c is 0 to (0.5×b); and
y is a number such that formula (II) is uncharged.

### Claim 2 (depends on 1)

A membrane as claimed in claim 1 wherein said mixed metal oxide is of formula (I)
LnaWbO12−y (I)
wherein Ln is Y or an element numbered 57 to 71;
the molar ratio of a:b is 4.8 to 6; and
y is a number such that formula (I) is uncharged.

### Claim 3 (depends on 2)

A membrane as claimed in claim 2 wherein the mixed metal oxide is of formula (III):
LnxWO12−y′ (III)
wherein Ln is Y or an element numbered 57 to 71 of the periodic table;
x is 4.8 to 6; and
y′ is 0≦y′≦1.8.

### Claim 4 (depends on 1)

A membrane as claimed in claim 1 wherein Ln is La.

### Claim 5 (depends on 1)

A membrane as claimed in claim 1 wherein said dehydrogenation catalyst is a zeolite catalyst.

### Claim 6 (depends on 1)

A membrane as claimed in claim 1 wherein said zeolite has the structure CHA or MFI.

### Claim 7 (depends on 6)

A membrane as claimed in claim 6 wherein said zeolite is a ZSM-5, with a metal selected from Mo, W, Fe, V or Cr.

### Claim 8

A supported proton conducting membrane comprising a porous support and a non porous proton conducting membrane thereon;
wherein said non porous proton conducting membrane comprises a mixed metal oxide of formula (II)
LnaWb−cMocO12−y (II)
wherein Ln is Y or an element numbered 57 to 71;
the molar ratio of a:b is 4.8 to 6; c is 0 to (0.5×b); and
y is a number such that formula (II) is uncharged; and wherein said support comprises a porous mixed metal oxide of formula (II)
LnaWb−cMocO12−y (II)
wherein Ln is Y or an element numbered 57 to 71;
the molar ratio of a:b is 4.8 to 6; c is 0 to (0.5×b); and
y is a number such that formula (II) is uncharged.

### Claim 9 (depends on 8)

A supported proton conducting membrane as claimed in claim 8 wherein said non porous membrane is produced by spray pyrolysis and said porous support is produced by solid state reaction.

### Claim 10 (depends on 8)

A supported proton conducting membrane as claimed in claim 8 wherein the particle size of the membrane is 100 to 800 nm, in diameter and the particle size of the support is 1000-8000 nm in diameter.

### Claim 11 (depends on 8)

A supported proton conducting membrane as claimed in claim 8 comprising a dehydrogenation catalyst on said proton conducting membrane so as to form the layered structure support-membrane-catalyst.

### Claim 12

A reactor comprising a first zone comprising a dehydrogenation catalyst and a second zone separated from said first zone by a proton conducting membrane comprising a mixed metal oxide of formula (II)
LnaWb−cMocO12−y (II)
wherein Ln is Y or an element numbered 57 to 71;
the molar ratio of a:b is 4.8 to 6; c is 0 to (0.5×b); and
y is a number such that formula (II) is uncharged.

### Claim 13 (depends on 12)

A process for the dehydrogenation of substance, comprising introducing said substance into the first zone of a reactor as claimed in claim 12 to thereby dehydrogenate said substance;
allowing hydrogen formed during said dehydrogenation to pass through said proton conducting membrane into said second zone;
introducing a purge gas into said second zone, preferably to react with the hydrogen; or applying reduced pressure in said second zone to thus remove hydrogen from said second zone.

### Claim 14

(canceled)

### Claim 15

A process for the formation of a proton conducting membrane comprising a rare-earth tungstate having general formula (II)
LnaWb−cMocO12−y (II)
wherein Ln is Y or an element numbered 57 to 71;
the molar ratio of a:b is 4.8 to 6; c is 0 to (0.5×b); and
y is a number such that formula (II) is uncharged, comprising forming a solution of an organometallic compound of Ln and an organometallic compound of W ions and if present Mo ions in an organic solvent,
forming a membrane on a support by coating said support with said solution;
drying to remove said organic solvent; and
calcining to form said proton conducting membrane.

### Claim 16 (depends on 15)

A process as claimed in claim 15 wherein the step of forming a membrane on a support is by coating or spray coating.

### Claim 17 (depends on 1)

A membrane as claimed in claim 1 wherein said molar ratio of a:b is 5.3 to 6.

### Claim 18 (depends on 1)

A membrane as claimed in claim 1 wherein y is 0≦y≦1.8.