Patent US4547608A successfully refreshed from Google Patents.
US4547608A
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Methane conversion using a silica/magnesia support
Assignee: Atlantic Richfield Co
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Filing: 1984-04-16
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Granted: 1985-10-15
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Expires: 2004-04-16
Abstract
Abstract An improved method for converting methane to higher hydrocarbon products by contacting a gas comprising methane with a contact agent at a selected temperature, the agent comprising a reducible metal oxide, a support of at least two oxides, and an alkali metal.
Inventors
- 👤 Marvin F. L. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:33
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/82; C07C2/84; C07C2521/00; C07C2521/06; C07C2521/08; C07C2521/10; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/08; C07C2523/14; C07C2523/16; C07C2523/18; C07C2523/32; C07C2523/34; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
In an method for converting a gas comprising methane to higher hydrocarbons which comprises contacting said gas with a contact agent at conditions to convert said gas, said contact agent comprising: (a) at least one metal, the oxide of which is reduced and produces higher hydrocarbons and water when contacted with methane at a selected temperature in the range of about 500° to about 1000° C.; and (b) a support comprising at least two oxides, and (c) an alkali metal, the improvement which comprises employing said contact agent wherein said support further comprises a first and a second oxide, said first oxide
Claim 2
Dependent Claim
102 words
In an method for converting a gas comprising methane to higher hydrocarbons which comprises contacting said gas with a contact agent at conditions to convert said gas, said contact agent comprising: (a) at least one metal, the oxide of which is reduced and produces higher hydrocarbons and water when contacted with methane at a selected temperature in the range of about 500° to about 1000° C.; and (b) a support comprising at least two oxides, and (c) an alkali metal, the improvement which comprises employing said contact agent wherein said support further comprises a first and a second oxide, said first oxide
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said at least one metal is selected from a group consisting of manganese, tin, indium, germanium, antimony, lead, bismuth, and mixtures thereof.
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein said alkali metal is selected from a group consisting of lithium, sodium, potassium, rubidium, cesium, and mixtures thereof.
Claim 5
Dependent Claim
22 words
The method of claim 3 wherein said alkali metal is selected from a group consisting of sodium, sodium compounds, and mixtures thereof.
Claim 6
Dependent Claim
10 words
The method of claim 1 wherein said support comprises magnesia.
Claim 7
Dependent Claim
10 words
The method of claim 1 wherein said support comprises silica.
Claim 8
Dependent Claim
12 words
The method of claim 6 wherein said support comprises magnesia and silica.
Claim 9
Dependent Claim
24 words
The method of claim 1 wherein said support comprises a mole ratio of said first oxide to said second oxide greater than about 1:9.
Claim 10
Dependent Claim
23 words
The method of claim 8 wherein the mole ratio of said first oxide to said second oxide is about 1:2 to about 1:3.
Claim 11
Dependent Claim
28 words
The method of claim 9 wherein said first oxide comprises magnesia, said second oxide comprises silica, and the ratio of said magnesia to said silica is about 3:7.
Claim 12
Dependent Claim
24 words
The method of claim 1 wherein said mole ratio of said second metal oxide to said alkali metal is about 0.5:1 to about 10:1.
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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |