US3600145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of methane from carbon monoxide and steam
Assignee: Phillips Petroleum Co
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Filing: 1968-04-09
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Granted: 1971-08-17
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Expires: 1988-04-09
Abstract
Abstract CARBON MONOXIDE AND STEAM ARE CONVERTED PRACTICALLY QUANTITATIVELY TO METHANE AND CARBON DIOXIDE AT A TEMPERATURE OF 400-2000*F., A PRESSURE IN THE RANGE OF 0 TO 1000 POUNDS PER SQUARE INCH GAGE, GASEOUS HOURLY SPACE RATES FOR CO OF 200-10,000 AND AT CARBON MONOXIDE TO STEAM RATIO (IN MOLES) OF FROM ABOUT 0.2 TO ABOUT 20 OVER A NICKEL CATALYST PROMOTED WITH A BARIUM SALT OF AN ORGANIC ACID, E.G., BARIUM ACETATE, THE CATALYST BEING SUPPORTED ON AN ALUMINA-CONTAINING SUPPORT MATERIAL, E.G., ALUMINA OR CALCIUM ALUMINATE.
Inventors
- 👤 Marvin M Johnson
- 👤 William T Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/10; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/02; C07C2523/70; C07C2523/74; C07C2523/755; C07C2523/76; C07C2523/78; C07C2531/00; C07C2531/02; C07C2531/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |