US2771400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic desulphurisation of motor fuels containing benzole
Assignee: BP PLC
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Filing: 1953-05-27
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Granted: 1956-11-20
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Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Porter Frederick Willi Bertram
- 👤 Hyde John Welford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:02
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/24; C07; C07C; C07C7/00; C07C7/148; C07C7/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A PROCESS FOR THE CATALYTIC DESULPHURISATION OF BENZOLE WHICH COMPRISES PASSING THE BENZOLE IN VAPOUR FORM AT A SPACE VELOCITY OF 0.5-3.0 V./V/V/.HR. AND IN ADMIXTURE WITH HYDROGEN OVER A SULPHUR-RESISTANT DEHYDROGENATION-HYDROGENATION CATALYST CONSISTING OF THE OXIDES OF COBALT AND MOLYBDENUM SUPPORTED ON ALUMINA AT A SELECTED TEMPERATURE WITHIN THE RANGE 750-800* F. AND A SELECTED PRESSURE WITHIN THE RANGE 100 P. S. I. GA. AND EQUILIBRIUM PRESSURE, THE SELECTED TEMPERATURE AND PRESSURE BEING CORRELATED SO THAT THE DEHYDROGENATION OF NAPHTHENES CONTAINED IN THE BENZOLE IS EFFECTED TO AN EXTENT NOT SUBSTANTIALLY IN EXCESS OF THAT REQUIRED TO PRODUCE SUFFICIENT HYDROGEN TO CONVERT THE ORGANICALLY COMBINED SULPHUR IN THE BENZOLE INTO HYDROGEN SULPHIDE AND TO MAINTAIN THE VAPOUR PHASE IN THE REACTION ZONE, A HYDROGEN-RICH GAS BEING SEPARATED FROM THE TREATED BENZOLE AND RECYCLE TO THE REACTION ZONE AT THE RATE OF 2000-10,000 S. C. F./B. TO CONSTITUTE THE WHOLE OF THE HYDROGEN SUPPLIED TO SAID ZONE.
Claim 2
Dependent Claim
157 words
A PROCESS FOR THE CATALYTIC DESULPHURISATION OF BENZOLE WHICH COMPRISES PASSING THE BENZOLE IN VAPOUR FORM AT A SPACE VELOCITY OF 0.5-3.0 V./V/V/.HR. AND IN ADMIXTURE WITH HYDROGEN OVER A SULPHUR-RESISTANT DEHYDROGENATION-HYDROGENATION CATALYST CONSISTING OF THE OXIDES OF COBALT AND MOLYBDENUM SUPPORTED ON ALUMINA AT A SELECTED TEMPERATURE WITHIN THE RANGE 750-800* F. AND A SELECTED PRESSURE WITHIN THE RANGE 100 P. S. I. GA. AND EQUILIBRIUM PRESSURE, THE SELECTED TEMPERATURE AND PRESSURE BEING CORRELATED SO THAT THE DEHYDROGENATION OF NAPHTHENES CONTAINED IN THE BENZOLE IS EFFECTED TO AN EXTENT NOT SUBSTANTIALLY IN EXCESS OF THAT REQUIRED TO PRODUCE SUFFICIENT HYDROGEN TO CONVERT THE ORGANICALLY COMBINED SULPHUR IN THE BENZOLE INTO HYDROGEN SULPHIDE AND TO MAINTAIN THE VAPOUR PHASE IN THE REACTION ZONE, A HYDROGEN-RICH GAS BEING SEPARATED FROM THE TREATED BENZOLE AND RECYCLE TO THE REACTION ZONE AT THE RATE OF 2000-10,000 S. C. F./B. TO CONSTITUTE THE WHOLE OF THE HYDROGEN SUPPLIED 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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |