US4523050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methane conversion process
Assignee: Atlantic Richfield Co
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Filing: 1984-04-16
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Granted: 1985-06-11
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Expires: 2004-04-16
Abstract
Abstract An improved method for converting methane to higher hydrocarbon products by contacting a hydrocarbon gas comprising methane, an oxygen-containing gas and a reducible metal oxide under synthesis conditions, the improvement which comprises contacting methane and oxygen with a contact solid which comprises at least one manganese silicate.
Inventors
- 👤 C. Andrew Jones
- 👤 John A. Sofranko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:22
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/82; C07C2/84; C07C2521/00; C07C2521/14; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
39 words
A method for converting methane to higher hydrocarbon products which comprises contacting a hydrocarbon gas comprising methane and an oxygen-containing gas with a contact solid comprising at least one manganese silicate at conditions to convert methane to said products.
Claim 2
Independent Claim
39 words
A method for converting methane to higher hydrocarbon products which comprises contacting a hydrocarbon gas comprising methane and an oxygen-containing gas with a contact solid comprising at least one manganese silicate at conditions to convert methane to said products.
Claim 3
Dependent Claim
31 words
The method of claim 1 wherein said hydrocarbon gas and said oxygen-containing gas are contacted with said solid at a temperature selected within the range of about 300° to 1200° C.
Claim 4
Dependent Claim
31 words
The method of claim 1 wherein said hydrocarbon gas and said oxygen-containing gas are contacted with said solid at a temperature selected within the range of about 500° to 1000° C.
Claim 5
Dependent Claim
52 words
The method of claim 1 wherein the manganese silicate is described by the formula Mn x SiO y wherein x is an integer selected within the range of 1 to 7 and y has a value which is determined by the valence and proportions of the other elements present in the compound.
Claim 6
Independent Claim
42 words
A method for converting methane to higher hydrocarbon products which comprises contacting hydrocarbon gas comprising methane and an oxygen-containing gas at a temperature within the range of about 300° to 1200° C. with a contact solid which solid comprises a manganese silicate.
Claim 7
Independent Claim
42 words
A method for converting methane to higher hydrocarbon products which comprises contacting hydrocarbon gas comprising methane and an oxygen-containing gas at a temperature within the range of about 300° to 1200° C. with a contact solid which solid comprises a manganese silicate.
Claim 8
Dependent Claim
21 words
The method of claim 5 wherein the hydrocarbon gas comprising methane contains from about 40 to about 100 volume percent methane.
Claim 9
Dependent Claim
20 words
The method of claim 5 wherein the gas comprising methane contains from about 80 to about 100 volume percent methane.
Claim 10
Dependent Claim
20 words
The method of claim 5 wherein the gas comprising methane contains from about 90 to about 100 volume percent methane.
Claim 11
Dependent Claim
15 words
The method of claim 5 wherein the gas comprising methane is derived from natural gas.
Claim 12
Dependent Claim
16 words
The method of claim 5 wherein the gas comprising methane is derived from processed natural gas.
Claim 13
Dependent Claim
11 words
The method of claim 5 wherein the oxygen-containing gas is air.
Claim 14
Dependent Claim
30 words
The method of claim 5 wherein said hydrocarbon gas and said oxygen-containing gas are contacted with said solid at a temperature within the range of about 500° to 1000° C.
Claim 15
Dependent Claim
28 words
The method of claim 5 wherein the volume ratio of hydrocarbon in said hydrocarbon gas to oxygen in said oxygen-containing gas is within the range of about 0.1-100:1.
Claim 16
Dependent Claim
28 words
The method of claim 5 wherein the volume ratio of hydrocarbon in said hydrocarbon gas to oxygen in said oxygen-containing gas is within the range of about 1-50:1.
Claim 17
Dependent Claim
31 words
The method of claim 5 wherein said solid comprises at least one member of the group consisting of Mn 7 SiO 12 , MnSiO 3 and Mn 2 SiO 4 .
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) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |