US4547610A
Expired / Lapsed
US
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Methane conversion
Assignee: Atlantic Richfield Co
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Filing: 1984-11-08
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Granted: 1985-10-15
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Expires: 2004-11-08
Abstract
Abstract An improved method for converting methane to higher hydrocarbon products by contacting a gas comprising methane and a reducible metal oxide under synthesis conditions, the improvement which comprises performing the contacting in the presence of oxides of nitrogen. Nitrous oxide is a preferred nitrogen oxide.
Inventors
- 👤 John A. Sofranko
- 👤 Howard P. Withers, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:18
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/82; C07C2/84; C07C2521/00; C07C2521/06; C07C2521/08; C07C2521/10; C07C2523/00; C07C2523/16; C07C2523/32; C07C2523/34; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
In a method for converting methane to higher hydrocarbon products wherein a gas comprising methane is contacted at a temperature selected within the range of 500° to 1000° C. with at least one reducible oxide of at least one metal which oxides when contacted with methane at said temperature are reduced and produce higher hydrocarbon products and water, the improvement which comprises performing said contact in the presence of a gas comprising at least one oxide of nitrogen.
Claim 2
Dependent Claim
78 words
In a method for converting methane to higher hydrocarbon products wherein a gas comprising methane is contacted at a temperature selected within the range of 500° to 1000° C. with at least one reducible oxide of at least one metal which oxides when contacted with methane at said temperature are reduced and produce higher hydrocarbon products and water, the improvement which comprises performing said contact in the presence of a gas comprising at least one oxide of nitrogen.
Claim 3
Dependent Claim
36 words
The method of claim 1 wherein said oxides of nitrogen are selected from the group consisting of N 2 O, NO, N 2 O 3 , N 2 O 5 , NO 2 and mixtures thereof.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said oxides of nitrogen comprise N 2 O.
Claim 5
Dependent Claim
30 words
The method of claim 1 wherein said reducible metal oxide is selected from the group consisting of Mn, Sn, In, Ge, Pb, Sb, Bi, Pr, Tb, Ce, Fe and Ru.
Claim 6
Dependent Claim
31 words
The method of claim 4 wherein said reducible metal oxides are associated with at least one promoter selected from the group consisting of alkali metals, alkaline earth metals and compounds thereof.
Claim 7
Dependent Claim
16 words
The method af claim 4 wherein said reducible metal oxides are associated with a support material.
Claim 8
Dependent Claim
10 words
The method of claim 6 wherein said support comprises silica.
Claim 9
Dependent Claim
10 words
The method of claim 6 wherein said support comprises magnesia.
Claim 10
Dependent Claim
10 words
The method of claim 1 wherein said metal is manganese.
References Cited (Backward Citations)
US4205194A
Cited
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 |