Patent US3063936A successfully refreshed from Google Patents.
US3063936A
Expired / Lapsed
US
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Desulfurization of hydrocarbon oils
Assignee: Imperial Chemical Industries Ltd
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Filing: 1959-08-20
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Granted: 1962-11-13
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Expires: 1979-08-20
Abstract
No abstract record available.
Inventors
- 👤 Pearce Thomas James Perrett
- 👤 Stannage William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:33
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/02; C10G17/04; C10G17/06; C10G67/00; C10G67/02; C10G67/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A PROCESS FOR DESULFURIZATION OF STRAIGHT-RUN PETROLEUM NAPHTHA WHICH IS SUBSTANTIALLY FREE FROM ETHYLENICALLY AND ACETYLENICALY UNSARURATED COMPOUNDS COMPRISING (1) CONTACTING SAID OIL WITH SULFURIC ACID, (2) SEPARATING THE ACID FROM THE OIL, (3) VAPORIZING SAID OIL, (4) PASSING THE VAPORS OF SAID OIL IN CONTACT WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ZINC OXIDE, MANGANESE OXIDE AND IRON OXIDE AT A TEMPERATURE BETWEEN 350*C. AND 450*C. AND A PRESSURE OF BETWEEN 1 AND 50 ATMOSPHERES, (5) CONTACTING THE RESULTING GAS TOGETHER WITH HYDROGEN WITH A HYDRODESULFURIZATION CATALYST AT A TEMPERATURE OF 350-450*C. AND A PRESSURE BETWEEN 1 AND 50 ATMOSPHERES AND THEN (6) CONTACTING THE RESULTING PRODUCT, WHILE VAPORIZED, WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ZINC OXIDE, MANGANESE OXIDE AND IRON OXIDE TO REMOVE HYDROGEN SULFIDE, WHEREBY THE SULFUR CONTENT OF THE HYDROCARBON MATERIAL IS REDUCED TO AT MOST 5 PARTS PER MILLION.
Claim 2
Dependent Claim
149 words
A PROCESS FOR DESULFURIZATION OF STRAIGHT-RUN PETROLEUM NAPHTHA WHICH IS SUBSTANTIALLY FREE FROM ETHYLENICALLY AND ACETYLENICALY UNSARURATED COMPOUNDS COMPRISING (1) CONTACTING SAID OIL WITH SULFURIC ACID, (2) SEPARATING THE ACID FROM THE OIL, (3) VAPORIZING SAID OIL, (4) PASSING THE VAPORS OF SAID OIL IN CONTACT WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ZINC OXIDE, MANGANESE OXIDE AND IRON OXIDE AT A TEMPERATURE BETWEEN 350*C. AND 450*C. AND A PRESSURE OF BETWEEN 1 AND 50 ATMOSPHERES, (5) CONTACTING THE RESULTING GAS TOGETHER WITH HYDROGEN WITH A HYDRODESULFURIZATION CATALYST AT A TEMPERATURE OF 350-450*C. AND A PRESSURE BETWEEN 1 AND 50 ATMOSPHERES AND THEN (6) CONTACTING THE RESULTING PRODUCT, WHILE VAPORIZED, WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ZINC OXIDE, MANGANESE OXIDE AND IRON OXIDE TO REMOVE HYDROGEN SULFIDE, WHEREBY THE SULFUR CONTENT OF THE HYDROCARBON MATERIAL IS REDUCED TO AT MOST 5 PARTS PER MILLION.
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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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |