US3025231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic hydrogenation of heavy oils such as shale oil
Assignee: Texaco Inc
•
Filing: 1959-06-03
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Granted: 1962-03-13
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Expires: 1979-06-03
Abstract
No abstract record available.
Inventors
- 👤 Louis D Friedman
- 👤 Marvin L Rambo
- 👤 John H Estes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:08
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/18; B01J23/00; B01J23/70; B01J23/76; B01J23/84; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G65/00; C10G65/02; C10G65/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR UPGRADING A HEAVY OIL HAVING A HIGH CARBON RESIDUE WHICH COMPRISES CONTACTING SAID OIL IN THE PRESENCE OF HYDROGEN AT A TEMPERATURE BETWEEN ABOUT 740 AND 900*F. AN A PRESSURE BETWEEN ABOUT 1000 AND 3000 P.S.I.G. WITH A CATALYST COMPRISING ACTIVATED CARBON PROMOTED WITH ABOUT 7% BY WT. IRON AND ABOUT 3% BY WT. VANADIUM OXIDE.
Claim 2
Dependent Claim
59 words
A PROCESS FOR UPGRADING A HEAVY OIL HAVING A HIGH CARBON RESIDUE WHICH COMPRISES CONTACTING SAID OIL IN THE PRESENCE OF HYDROGEN AT A TEMPERATURE BETWEEN ABOUT 740 AND 900*F. AN A PRESSURE BETWEEN ABOUT 1000 AND 3000 P.S.I.G. WITH A CATALYST COMPRISING ACTIVATED CARBON PROMOTED WITH ABOUT 7% BY WT. IRON AND ABOUT 3% BY WT. VANADIUM OXIDE.
References Cited (Backward Citations)
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US2766179A
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US2769754A
Cited
US2771401A
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US2901423A
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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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |