US4676972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the conversion of alcohols to gaseous products
Assignee: Standard Oil Co
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Filing: 1985-07-29
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Granted: 1987-06-30
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Expires: 2005-07-29
Abstract
Abstract An alcohol such as methanol is decomposed to form hydrogen and carbon monoxide at elevated temperature in the presence of mixed metal oxide catalyst containing copper and a metal L selected from the group consisting of Th, Be, Zr, Ce, Mg and U. The catalyst can contain a further metal M selected from the group consisting of Ca, Mo, Mn, Pt, Ce, Cr, Zn, Al, Ti, La, V, U, Ru, Re and Pd. The catalysts are particularly effective at relatively low temperatures for example 200°-200° C.
Inventors
- 👤 Louis J. Velenyi
- 👤 Terry J. Mazanec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:58
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/89; B01J23/8933; C; C01; C01B; C01B3/00; C01B3/02; C01B3/22
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
126 words
A process for the decomposition of an alcohol to form hydrogen and carbon monoxide which process comprises decomposing the alcohol at elevated temperature in the presence of a catalyst of the formula Cu.sub.a LM.sub.b A.sub.c O.sub.x where L is one or more of the metals selected from the group consisting of Th, Be, Zr, Ce, Mg and U; M is one ore more of the metals selected from the group consisting of Ca, Mo, Mn, Ce, Cr, Al, Ti, La, V and Re; A is an alkali metal and where a is from 0.50 to 2.50, b is from 0.005 to 1.00, c is from 0 to 2.0, and x is a number such that a valence requirement of the other elements for oxygen are satisfied.
Claim 2
Dependent Claim
126 words
A process for the decomposition of an alcohol to form hydrogen and carbon monoxide which process comprises decomposing the alcohol at elevated temperature in the presence of a catalyst of the formula Cu.sub.a LM.sub.b A.sub.c O.sub.x where L is one or more of the metals selected from the group consisting of Th, Be, Zr, Ce, Mg and U; M is one ore more of the metals selected from the group consisting of Ca, Mo, Mn, Ce, Cr, Al, Ti, La, V and Re; A is an alkali metal and where a is from 0.50 to 2.50, b is from 0.005 to 1.00, c is from 0 to 2.0, and x is a number such that a valence requirement of the other elements for oxygen are satisfied.
Claim 3
Dependent Claim
21 words
The process as claimed in claim 1 wherein a is from 1.30 to 1.70, and b is from 0.005 to 0.60.
Claim 4
Dependent Claim
11 words
The process as claimed in claim 1 where L is Th.
Claim 5
Dependent Claim
11 words
The process as claimed in claim 1 wherein L is U.
Claim 6
Dependent Claim
11 words
The process as claimed in claim 4 wherein M is Al.
Claim 7
Dependent Claim
15 words
The process as claimed in claim 1 wherein the catalyst is substantially alkali metal free.
Claim 8
Dependent Claim
26 words
The process as claimed in claim 1 wherein the catalyst has been partially reduced in a stream of a reducing gas before contacting with the alcohol.
Claim 9
Dependent Claim
25 words
The process as claimed in claim 1 wherein the low molecular weight alcohol is a saturated monohydric alcohol containing from 1 to 6 carbon atoms.
Claim 10
Dependent Claim
15 words
The process as claimed in claim 8 wherein the monohydric alcohol is methanol or ethanol.
Claim 11
Dependent Claim
26 words
The process as claimed in claim 1 wherein the temperature is from about 150° to 300° C. and the pressure from about 0.5 to 3 atmospheres.
Claim 12
Dependent Claim
25 words
The process as claimed in claim 1 wherein water, if present, will be less than the stoichiometic amount required for the steam reforming of methanol.
References Cited (Backward Citations)
US4086877A
Cited
US4088450A
Cited
US4110256A
Cited
US4091086A
Cited
US4175115A
Cited
US4407238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |