US3269939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the reduction of the aromatic content of petroleum distillates
Assignee: Labofina SA
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Filing: 1964-04-03
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Granted: 1966-08-30
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Expires: 1984-04-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph E M Marechal
- 👤 Henri R Debus
- 👤 Raymond M Cahen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:27
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/44; C10G45/46; C10G45/52; C10G2400/00; C10G2400/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A CONTINUOUS PROCESS FOR REDUCING THE AROMATIC HYDROCARBON CONTENT OF A PETROLEUM FRACTION BOILING IN THE RANGE OF ABOUT 60*C. TO 350*C. HAVING A SUBSTANTIAL SULPHUR CONTENT NOT HIGHER THAN 300 PARTS PER MILLION BY WEIGHT, WHICH PROCESS COMPRISES HYDROGENATING SAID FRACTION TO OBTAIN A SUBSTANTIAL HYDROGENATION OF AROMATICS AT A TEMPERATURE OF ABIOUT 100 TO 400*C., AT A PRESSURE OF ABOUT 70 TO 1,000 P.S.I.G., IN THE PRESENCE OF ABOUT 500 TO 17,000 S.C.F. OF HYDROGEN PER BARREL OF LIQUID FEED IN CONTACT WITH A CATALYST COMPRISING 0.1 TO 1.0% BY WEIGHT IF PLATINUM SUPPORTED ON AN ACTIVE SILICA-ALUMINA CARRIER CONTAINING FROM 75 TO 90% BY WEIGHT OF SILICA AND AT A SPACE VELOCITY OF ABOUT 0.1 TO 20 V./V./HY.
Claim 2
Dependent Claim
121 words
A CONTINUOUS PROCESS FOR REDUCING THE AROMATIC HYDROCARBON CONTENT OF A PETROLEUM FRACTION BOILING IN THE RANGE OF ABOUT 60*C. TO 350*C. HAVING A SUBSTANTIAL SULPHUR CONTENT NOT HIGHER THAN 300 PARTS PER MILLION BY WEIGHT, WHICH PROCESS COMPRISES HYDROGENATING SAID FRACTION TO OBTAIN A SUBSTANTIAL HYDROGENATION OF AROMATICS AT A TEMPERATURE OF ABIOUT 100 TO 400*C., AT A PRESSURE OF ABOUT 70 TO 1,000 P.S.I.G., IN THE PRESENCE OF ABOUT 500 TO 17,000 S.C.F. OF HYDROGEN PER BARREL OF LIQUID FEED IN CONTACT WITH A CATALYST COMPRISING 0.1 TO 1.0% BY WEIGHT IF PLATINUM SUPPORTED ON AN ACTIVE SILICA-ALUMINA CARRIER CONTAINING FROM 75 TO 90% BY WEIGHT OF SILICA AND AT A SPACE VELOCITY OF ABOUT 0.1 TO 20 V./V./HY.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |