Patent US2718490A successfully refreshed from Google Patents.
US2718490A
Expired / Lapsed
US
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Catalytic desulphurisation of petroleum hydrocarbons
Assignee: BP PLC
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Filing: 1953-05-13
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Granted: 1955-09-20
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Expires: 1973-05-13
Abstract
No abstract record available.
Inventors
- 👤 Porter Frederick Willi Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:54
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/24; C10G45/04; C10G45/06; C10G45/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A PROCESS FOR THE AUTOFINING OF GAS OIL, THE IMPROVEMENT COMPRISING PASSING THE GAS OIL AT A SPACE VELOCITY NOT IN EXCESS OF ABOUT 0.5 V./V./HR. OF THE LIUID GAS OIL TO A REACTION ZONE WHEREIN IT IS CONTACTED WITH A CATALYST OF COBALT AND MOLYBDENUM OXIDE ON A SUPPORT, SAID CATALYST CONTAINING A MINOR AMOUNT OF FLUORINE, AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 750-800* F., SEPARATING THE PRODUCTS FROM THE REACTION ZONE INTO A GAS OIL HAVING A REDUCED SULPHUR CONTENT AND A HYDROGEN-RICH GAS, AND RECYCLING THE WHOLE OF SAID HYDROGEN-RICH GAS TO THE REACTION ZONE, THE HYDROGEN OF SAID GAS CONSTITUTING THE WHOLE OF THE HYDROGEN SUPPLIED AS SUCH TO SAID ZONE.
Claim 2
Dependent Claim
118 words
IN A PROCESS FOR THE AUTOFINING OF GAS OIL, THE IMPROVEMENT COMPRISING PASSING THE GAS OIL AT A SPACE VELOCITY NOT IN EXCESS OF ABOUT 0.5 V./V./HR. OF THE LIUID GAS OIL TO A REACTION ZONE WHEREIN IT IS CONTACTED WITH A CATALYST OF COBALT AND MOLYBDENUM OXIDE ON A SUPPORT, SAID CATALYST CONTAINING A MINOR AMOUNT OF FLUORINE, AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 750-800* F., SEPARATING THE PRODUCTS FROM THE REACTION ZONE INTO A GAS OIL HAVING A REDUCED SULPHUR CONTENT AND A HYDROGEN-RICH GAS, AND RECYCLING THE WHOLE OF SAID HYDROGEN-RICH GAS TO THE REACTION ZONE, THE HYDROGEN OF SAID GAS CONSTITUTING THE WHOLE OF THE HYDROGEN SUPPLIED AS SUCH TO SAID ZONE.
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) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |