US3284342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulphurisation of hydrocarbon materials
Assignee: BP PLC
•
Filing: 1961-11-21
•
Granted: 1966-11-08
•
Expires: 1981-11-21
Abstract
No abstract record available.
Inventors
- 👤 Nathan Shirley Gertrude
- 👤 Davis Gerald Stanley
- 👤 Ford John Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:53
CPC Classifications
C; C10; C10G; C10G53/00; C10G53/02; C10G53/14; C10G27/00; C10G27/04; C10G27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PRICESS FOR REDUCING THE SULPHUR CONTENT OF A SULPHURR-CONTAINING HEAVY HYDROCARBON OIL CONTAINING AT LEAST A PROPORTION OF MATERIAL BOILING ABOVE 250*C. WHICH COMPRISES TREATING THE OIL WITH A PEROXIDE-CONTAINING OXIDANT, THE MOL RATIO OF PEROXIDE TO THE SULPHUR PRESENT BEING FROM ABOUT 1:1 TO ABOUT 6:1, HEATING THE TREATED OIL CONTAINING SULFONES AT A TEMPERATURE FROM ABOUT 350*C. TO ABOUT 400*C. UNDLER CONDITIONS TO REPTURE THE SULPHUR-CARBON BOND YIELDING VOLATILE SULPHUR COMPOUNDS, AND RECOVERING A HEAVY HYDROCARBON OIL OF REDUCED SULPHUR CONTENT.
Claim 2
Dependent Claim
84 words
A PRICESS FOR REDUCING THE SULPHUR CONTENT OF A SULPHURR-CONTAINING HEAVY HYDROCARBON OIL CONTAINING AT LEAST A PROPORTION OF MATERIAL BOILING ABOVE 250*C. WHICH COMPRISES TREATING THE OIL WITH A PEROXIDE-CONTAINING OXIDANT, THE MOL RATIO OF PEROXIDE TO THE SULPHUR PRESENT BEING FROM ABOUT 1:1 TO ABOUT 6:1, HEATING THE TREATED OIL CONTAINING SULFONES AT A TEMPERATURE FROM ABOUT 350*C. TO ABOUT 400*C. UNDLER CONDITIONS TO REPTURE THE SULPHUR-CARBON BOND YIELDING VOLATILE SULPHUR COMPOUNDS, AND RECOVERING A HEAVY HYDROCARBON OIL OF REDUCED SULPHUR CONTENT.
References Cited (Backward Citations)
US1581369A
Cited
US1795278A
Cited
US1840269A
Cited
US1971172A
Cited
US2414963A
Cited
US2955123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |