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US4510267A
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Preparation of olefins from synthesis gas using ruthenium supported on ceric oxide
Assignee: Air Products and Chemicals Inc
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Filing: 1984-03-05
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Granted: 1985-04-09
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Expires: 2004-03-05
Abstract
Abstract A catalyst comprising a ruthenium carbonyl compound deposited on a cerium oxide-containing support material provides for the selective synthesis of low molecular weight olefinic hydrocarbons from mixtures of hydrogen and carbon monoxide.
Inventors
- 👤 Ronald Pierantozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:28
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/1616; B01J23/00; B01J23/002; B01J31/20; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J23/10; B01J2523/00; B01J2531/00; B01J2531/02; B01J2531/0202; B01J2531/0211; B01J2531/80; B01J2531/82; B01J2531/821; C07C2523/00; C07C2523/10; C07C2531/00; C07C2531/16; C07C2531/20; C07C2531/26; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
120 words
In a process for the synthesis of hydrocarbons by reacting hydrogen and carbon monoxide over a ruthenium-containing catalyst, the method for selectively synthesizing olefins which comprises reacting the hydrogen and carbon monoxide under reaction conditions over a ruthenium catalyst made by preparing a solution of a ruthenium carbonyl compound in a solvent sufficient to wet the surface of a ceric oxide-containing support selected from the grouup consisting of CeO 2 , Al 2 O 3 -CeO 2 , SiO 2 -CeO 2 , CeO 2 -carbon or CeO 2 -other rare earth oxides, contacting the ceric oxide-containing support with the ruthenium carbonyl compound-containing solution and removing the solvent to yield the ruthenium carbonyl compound deposited on the ceric oxide-containing support.
Claim 2
Dependent Claim
120 words
In a process for the synthesis of hydrocarbons by reacting hydrogen and carbon monoxide over a ruthenium-containing catalyst, the method for selectively synthesizing olefins which comprises reacting the hydrogen and carbon monoxide under reaction conditions over a ruthenium catalyst made by preparing a solution of a ruthenium carbonyl compound in a solvent sufficient to wet the surface of a ceric oxide-containing support selected from the grouup consisting of CeO 2 , Al 2 O 3 -CeO 2 , SiO 2 -CeO 2 , CeO 2 -carbon or CeO 2 -other rare earth oxides, contacting the ceric oxide-containing support with the ruthenium carbonyl compound-containing solution and removing the solvent to yield the ruthenium carbonyl compound deposited on the ceric oxide-containing support.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein the ceric oxide-containing support is CeO 2 .
Claim 4
Dependent Claim
36 words
The method of claim 1 wherein the ruthenium carbonyl compound is [Ru 3 (CO) 12 ], [H 4 Ru 4 (CO) 12 ], [H 2 Ru 6 (CO) 18 ] or [Ru 6 C(CO) 17 ].
Claim 5
Dependent Claim
47 words
The method of claim 1 wherein the reaction is performed at a H 2 :CO molar ratio from 1:2 to 2:1, a space velocity of 100 to 10,000 hr -1 , a temperature from 200° to 400° C. and a pressure from 100 to 10 5 kPa.
Claim 6
Dependent Claim
16 words
The method of claim 1 wherein the catalyst comprises from 0.01 to 15 wt. % ruthenium.
Claim 7
Dependent Claim
14 words
The method of claim 1 wherein the temperature is at least about 200° C.
Claim 8
Independent Claim
121 words
A method for selectively synthesizing olefins which comprise reacting hydrogen and carbon monoxide at a H 2 :CO molar ratio from 1:2 to 2:1, a space velocity of 100 to 10,000 hr -1 , a temperature from 320° to 360° C. and a pressure from 100 to 2.4×10 3 kPa over a ruthenium catalyst comprising [Ru 3 (CO) 12 ] or [H 4 Ru 4 (CO) 12 ] deposited on a ceric oxide, the catalyst made by preparing a solution of the ruthenium carbonyl compound in a solvent sufficient to wet the surface of the ceric oxide, contacting the ceric oxide with the ruthenium carbonyl compound-containing solution and removing the solvent to yield the ruthenium carbonyl compound on the ceric oxide.
Claim 9
Independent Claim
121 words
A method for selectively synthesizing olefins which comprise reacting hydrogen and carbon monoxide at a H 2 :CO molar ratio from 1:2 to 2:1, a space velocity of 100 to 10,000 hr -1 , a temperature from 320° to 360° C. and a pressure from 100 to 2.4×10 3 kPa over a ruthenium catalyst comprising [Ru 3 (CO) 12 ] or [H 4 Ru 4 (CO) 12 ] deposited on a ceric oxide, the catalyst made by preparing a solution of the ruthenium carbonyl compound in a solvent sufficient to wet the surface of the ceric oxide, contacting the ceric oxide with the ruthenium carbonyl compound-containing solution and removing the solvent to yield the ruthenium carbonyl compound on the ceric oxide.
Claim 10
Dependent Claim
15 words
The method of claim 4 wherein the catalyst comprises from 0.01 to 15 wt% ruthenium.
Claim 11
Dependent Claim
15 words
The method of claim 4 wherein the H 2 :CO molar ratio is about 1:1.
Claim 12
Dependent Claim
15 words
The method of claim 7 wherein the H 2 :CO molar ratio is about 1:1.
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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) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |