US4088671A
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Conversion of synthesis gas using a cobalt-ruthenium catalyst
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1976-03-19
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Granted: 1978-05-09
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Expires: 1996-03-19
Abstract
Abstract A process for the synthesis of higher hydrocarbons from the reaction of CO and hydrogen at low pressure is proposed in the contact presence of a catalyst comprising as the active ingredients a major amount of cobalt and a minor amount of ruthenium.
Inventors
- 👤 Thaddeus P. Kobylinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:38
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8913; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/16; C07C2523/00; C07C2523/12; C07C2523/38; C07C2523/40; C07C2523/46; C07C2523/70; C07C2523/74; C07C2523/75; C07C2523/89
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
123 words
A process for the conversion of synthesis gas consisting essentially of CO and H 2 to a product consisting essentially of hydrocarbons and having only minor amounts of methane which comprises contacting said synthesis gas at a temperature of from 60° to 450° C. and a pressure from atmospheric to 300 psig with a catalyst consisting essentially of a major amount of cobalt and a minor amount of ruthenium as the active catalytic components and where in said catalyst the amount of cobalt is from 1 to 50 weight percent, calculated as the metal, and where in said catalyst the molar ratio of cobalt to ruthenium is from 5:1 to about 200:1 and thereafter recovering a product having less than 25 percent methane.
Claim 2
Dependent Claim
123 words
A process for the conversion of synthesis gas consisting essentially of CO and H 2 to a product consisting essentially of hydrocarbons and having only minor amounts of methane which comprises contacting said synthesis gas at a temperature of from 60° to 450° C. and a pressure from atmospheric to 300 psig with a catalyst consisting essentially of a major amount of cobalt and a minor amount of ruthenium as the active catalytic components and where in said catalyst the amount of cobalt is from 1 to 50 weight percent, calculated as the metal, and where in said catalyst the molar ratio of cobalt to ruthenium is from 5:1 to about 200:1 and thereafter recovering a product having less than 25 percent methane.
Claim 3
Dependent Claim
14 words
A process in accordance with claim 1 wherein the reaction pressure is about atmospheric.
Claim 4
Dependent Claim
14 words
A process in accordance with claim 1 wherein the catalyst contains an inert support.
Claim 5
Dependent Claim
21 words
A process in accordance with claim 1 wherein the synthesis gas reaction conditions include a temperature from 125° to 400° C.
Claim 6
Dependent Claim
26 words
A process in accordance with claim 1 wherein the catalyst is prepared by the co-precipitation of a mixture of ruthenium and cobalt salts onto a support.
Claim 7
Dependent Claim
12 words
A process in accordance with claim 5 wherein the support is kieselguhr.
Claim 8
Dependent Claim
12 words
A process in accordance with claim 5 wherein the support is gamma-alumina.
Claim 9
Dependent Claim
18 words
A process in accordance with claim 5 wherein the molar ratio of hydrogen to CO is about 2:1.
Claim 10
Dependent Claim
18 words
A process in accordance with claim 5 wherein the catalyst contains in addition a minor amount of thorium.
Claim 11
Dependent Claim
36 words
A process in accordance with claim 1 wherein the amount of cobalt is from 5 to 40 weight percent and wherein the molar ratio of cobalt to ruthenium is said catalyst is from 15:1 to 80:1.
Claim 12
Dependent Claim
67 words
A process in accordance with claim 1 wherein the reaction temperature is from 125° to 400° C., the reaction pressure is from atmospheric to 300 psig, wherein the amount of cobalt if from 5 to 35 weight percent, and wherein the molar ratio of cobalt to ruthenium in the finished catalyst is from 10:1 to 100:1, and thereafter recovering a product having less than 10 percent methane.
Claim 13
Dependent Claim
116 words
A process for the conversion of synthesis gas consisting essentially of CO and hydrogen to a hydrocarbon product substantially methane-free, which comprises contacting said synthesis gas at a temperature from 160° to 350° C. and a pressure from atmospheric to 50 psig, with a catalyst consisting essentially of a major amount of cobalt and a minor amount of ruthenium distended in a uniform, thin layer on a catalyst support, and where in said catalyst the amount of cobalt is from 10 to 35 weight percent of the total catalyst and wherein the the molar ratio of cobalt to ruthenium in the finished catalyst is from 15:1 to 80:1, and thereafter recovering a hydrocarbon product substantially methane-free.
Claim 14
Dependent Claim
116 words
A process for the conversion of synthesis gas consisting essentially of CO and hydrogen to a hydrocarbon product substantially methane-free, which comprises contacting said synthesis gas at a temperature from 160° to 350° C. and a pressure from atmospheric to 50 psig, with a catalyst consisting essentially of a major amount of cobalt and a minor amount of ruthenium distended in a uniform, thin layer on a catalyst support, and where in said catalyst the amount of cobalt is from 10 to 35 weight percent of the total catalyst and wherein the the molar ratio of cobalt to ruthenium in the finished catalyst is from 15:1 to 80:1, and thereafter recovering a hydrocarbon product substantially methane-free.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |