US4605679A
Expired / Lapsed
US
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Activated cobalt catalyst and synthesis gas conversion using same
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1985-05-15
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Granted: 1986-08-12
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Expires: 2005-05-15
Abstract
Abstract Synthesis gas comprising carbon monoxide and hydrogen is converted to a liquid hydrocarbon by contacting the synthesis gas under conversion conditions with a catalyst prepared by subjecting a cobalt carbonyl-impregnated alumina or silica support to an activation procedure at a temperature not exceeding 500 DEG C. comprising, in sequence, (A) reduction in hydrogen, (B) oxidation in an oxygen-containing gas, and (C) reduction in hydrogen.
Inventors
- 👤 Thaddeus P. Kobylinski
- 👤 Charles L. Kibby
- 👤 Richard B. Pannell
- 👤 Elizabeth L. Eddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/0201; B01J37/0203; B01J23/00; B01J23/70; B01J23/74; B01J23/75; B01J23/89; B01J23/8913; B01J23/8933; B01J23/894; B01J37/12; B01J37/14; B01J37/16; B01J37/18; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/0445; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/10; C07C2523/12; C07C2523/38; C07C2523/40; C07C2523/46; C07C2523/70; C07C2523/74; C07C2523/75
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
133 words
A process for the conversion of synthesis gas to a product containing liquid hydrocarbons with an, activated, supported catalyst prepared by the steps, in sequence, of (A) impregnating an alumina or silica support with a cobalt carbonyl, (B) subjecting said cobalt carbonyl-impregnated alumina or silica support to an activation procedure comprising the steps of, in sequence, (i) reduction in hydrogen, (ii) oxidation with an oxygen-containing gas, and (iii) reduction in hydrogen, said activation procedure being conducted at a temperature below about 450° C., to produce an, activated catalyst having an activity after said step (iii) that is greater than the activity of the catalyst after said step (i), and contacting a synthesis gas comprising hydrogen and carbon monoxide under synthesis conversion conditions with said, activated catalyst to form a product containing liquid hydrocarbons.
Claim 2
Dependent Claim
133 words
A process for the conversion of synthesis gas to a product containing liquid hydrocarbons with an, activated, supported catalyst prepared by the steps, in sequence, of (A) impregnating an alumina or silica support with a cobalt carbonyl, (B) subjecting said cobalt carbonyl-impregnated alumina or silica support to an activation procedure comprising the steps of, in sequence, (i) reduction in hydrogen, (ii) oxidation with an oxygen-containing gas, and (iii) reduction in hydrogen, said activation procedure being conducted at a temperature below about 450° C., to produce an, activated catalyst having an activity after said step (iii) that is greater than the activity of the catalyst after said step (i), and contacting a synthesis gas comprising hydrogen and carbon monoxide under synthesis conversion conditions with said, activated catalyst to form a product containing liquid hydrocarbons.
Claim 3
Dependent Claim
10 words
The process of claim 1 wherein said support is alumina.
Claim 4
Dependent Claim
15 words
The process of claim 1 wherein said cobalt carbonyl is Co 2 (CO) 8 .
Claim 5
Dependent Claim
25 words
The process of claim 1 wherein said oxidation step is conducted at a temperature in the range of between about 100° and about 400° C.
Claim 6
Dependent Claim
27 words
The process of claim 4 wherein said second reduction step (C) is conducted at a temperature in the range of from about 200° to about 450° C.
Claim 7
Dependent Claim
26 words
The process of claim 1 wherein said activation steps are conducted while heating at a rate of from about 0.5° to about 2° C. per minute.
Claim 8
Dependent Claim
18 words
The process of claim 1 wherein said catalyst contains from about 1 to about 30 weight percent cobalt.
Claim 9
Dependent Claim
24 words
The process of claim 1 wherein said cobalt carbonyl-impregnated support is formed by impregnating said support with a non-aqueous organic solution of cobalt carbonyl.
Claim 10
Dependent Claim
11 words
The process of claim 8 wherein said non-aqueous solvent is tetrahydrofuran.
Claim 11
Dependent Claim
24 words
The process of claim 1 wherein said activation is conducted at a temperature in the range of between about 100° and about 400° C.
Claim 12
Dependent Claim
19 words
The process of claim 1 wherein said catalyst additionally contains between about 0.05 and about 0.50 weight percent ruthenium.
Claim 13
Dependent Claim
14 words
The process of claim 1 wherein said catalyst consists essentially of cobalt on alumina.
Claim 14
Dependent Claim
33 words
The process of claim 1 wherein said process is conducted at a temperature of from about 185° to about 250° C. while under a pressure of from about 10 to about 20 atmospheres.
Claim 15
Dependent Claim
10 words
The process of claim 1 wherein said support is silica.
Claim 16
Dependent Claim
15 words
The process of claim 11 wherein said catalyst additionally contains a lanthanum or manganese promoter.
Claim 17
Dependent Claim
18 words
The process of claim 7 wherein said catalyst contains from about 3 to about 20 weight percent cobalt.
Claim 18
Dependent Claim
18 words
The process of claim 16 wherein said catalyst contains from about 5 to about 15 weight percent cobalt.
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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) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |