Patent US4547803A successfully refreshed from Google Patents.
Patent US4233180A successfully refreshed from Google Patents.
US4233180A
Expired / Lapsed
US
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Process for the conversion of carbon monoxide
Assignee: Sued Chemie Inc
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Filing: 1978-11-13
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Granted: 1980-11-11
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Expires: 1998-11-13
Abstract
Abstract A process for the conversion of carbon monoxide in synthesis gas mixtures to hydrogen and CO 2 utilizes a catalyst which is active in the presence of sulfur compounds, and which comprises the oxides or sulfides of cobalt and molybdenum, supported on a shaped, relatively high surface area aluminous carrier. The carrier is stabilized by admixture with one or more rare earth metal oxides while the alumina is in the hydrated condition. The mixture of hydrated alumina and rare earth metal oxide is formed into a desired shape and calcined to convert the hydrated alumina to the oxide. Thereafter, the calcined, high surface area alumina is impregnated with the desired salts of cobalt and molybdenum and the impregnated catalyst is thereafter calcined and placed into service. The stabilized catalyst exhibits good activity at relatively low temperatures with synthesis gas mixtures containing sulfur compounds and retains its surface area and the aluminous carrier is not converted over to the alpha phase.
Inventors
- 👤 Arthur L. Hausberger
- 👤 Edward K. Dienes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:45
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B3/16; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
113 words
A process for the catalytic conversion of carbon monoxide with steam to form hydrogen and carbon dioxide in the presence of a catalyst which comprises the step of passing a reaction mixture comprising carbon monoxide and steam at a temperature of from 300° to 1000° F., but above the dew point temperature of said reaction mixture and at a pressure below the dew point pressure of said reaction mixture but within the range of from 1 to 200 atmospheres over a catalyst comprising a compound of molybdenum supported on a stabilized aluminous support comprising aluminum oxide in the gamma phase in intimate association with a rare earth metal oxide of the lanthanum series.
Claim 2
Dependent Claim
113 words
A process for the catalytic conversion of carbon monoxide with steam to form hydrogen and carbon dioxide in the presence of a catalyst which comprises the step of passing a reaction mixture comprising carbon monoxide and steam at a temperature of from 300° to 1000° F., but above the dew point temperature of said reaction mixture and at a pressure below the dew point pressure of said reaction mixture but within the range of from 1 to 200 atmospheres over a catalyst comprising a compound of molybdenum supported on a stabilized aluminous support comprising aluminum oxide in the gamma phase in intimate association with a rare earth metal oxide of the lanthanum series.
Claim 3
Dependent Claim
24 words
The process of claim 1, the further improvement wherein said catalyst includes a compound of cobalt in addition to a compound of molybdenum oxide.
Claim 4
Dependent Claim
51 words
A process for the conversion of carbon monoxide to carbon dioxide, as defined in claim 1, in which said compounds of cobalt and molybdenum are derived from heat decomposable salts of said metals and which are impregnated onto said stabilized alumina support and calcined to convert said salts to the oxide.
Claim 5
Dependent Claim
29 words
A process for the conversion of carbon monoxide to carbon dioxide, as defined in claim 1, in which the compounds of cobalt and molybdenum includes one or more sulfides.
Claim 6
Dependent Claim
24 words
A process for the conversion of carbon monoxide as defined in claim 1, in which the carbon monoxide and steam mixture contains sulfur compounds.
Claim 7
Dependent Claim
22 words
A process for the conversion of carbon monoxide as described in claim 1, in which the compound of sulfur is hydrogen sulfide.
Claim 8
Dependent Claim
40 words
A process for the conversion of carbon monoxide, as defined in claim 1, the further step of converting said oxide of molybdenum to the sulfide, including contacting said catalyst with a carbon monoxide steam reaction mixture containing a sulfur-bearing compound.
Claim 9
Dependent Claim
54 words
A process of CO conversion as defined in claim 1, in which the catalyst upon loss of some of its activity due to the deposition of carbonaceous materials thereon, is regenerated by the steps of oxidizing said catalyst in situ, thereafter sulfiding said catalyst by contacting same with a gas containing a sulfur compound.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |