US2516876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization of light petroleum hydrocarbons
Assignee: Gulf Research and Development Co
•
Filing: 1946-09-27
•
Granted: 1950-08-01
•
Expires: 1966-09-27
Abstract
No abstract record available.
Inventors
- 👤 William A Horne
- 👤 James F Junge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:03
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/94; C; C10; C10G; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PROCESS FOR DESULFURIZING LOW BOILING PETROLLEUM HYDROCARBONS WITHOUT SUBSTANTIAL CHANGE IN OLEFIN CONTENT COMPRISING PASSING THE VAPORS THEREOF OVER A CONTACT AGENT CONSISTING INITIALLY OF UNREDUCED NICKEL OXIDE SUPPORTED ON ACTIVATED ALUMINA AT A TEMPERATURE IN THE RANGE OF FROM 600* TO 800*F. AND AT A PRESSURE IN THE RANGE 100 TO 500 POUNDS PER SQUARE INCH GUAGE, AND IN THE PRESENCE OF HYDROGEN, ABSORBING SULFUR FROM THE VAPORS TO FORM NICKEL SULFIDE, TERMINATING THE PASSAGE OF VAPORS BEFORE A SUBSTANTIAL AMOUNT OF HYDROGEN SULFIDE APPEARS IN THE EFFLUENT AND BEFORE ABOUT 60 PER CENT OF THE AVAILABLE NICKEL CONTENT OF THE CONTACT HAS BEEN CONVERTED INTO NICKEL SULFIDE, REGENERATING THE CONTACT BY CONVERTING THE NICKEL SULFIDE THUS FORMED INTO NICKEL OXIDE AND RE-USING THE REGNERATED CONTACT IN THE PROCESS.
Claim 2
Dependent Claim
131 words
A PROCESS FOR DESULFURIZING LOW BOILING PETROLLEUM HYDROCARBONS WITHOUT SUBSTANTIAL CHANGE IN OLEFIN CONTENT COMPRISING PASSING THE VAPORS THEREOF OVER A CONTACT AGENT CONSISTING INITIALLY OF UNREDUCED NICKEL OXIDE SUPPORTED ON ACTIVATED ALUMINA AT A TEMPERATURE IN THE RANGE OF FROM 600* TO 800*F. AND AT A PRESSURE IN THE RANGE 100 TO 500 POUNDS PER SQUARE INCH GUAGE, AND IN THE PRESENCE OF HYDROGEN, ABSORBING SULFUR FROM THE VAPORS TO FORM NICKEL SULFIDE, TERMINATING THE PASSAGE OF VAPORS BEFORE A SUBSTANTIAL AMOUNT OF HYDROGEN SULFIDE APPEARS IN THE EFFLUENT AND BEFORE ABOUT 60 PER CENT OF THE AVAILABLE NICKEL CONTENT OF THE CONTACT HAS BEEN CONVERTED INTO NICKEL SULFIDE, REGENERATING THE CONTACT BY CONVERTING THE NICKEL SULFIDE THUS FORMED INTO NICKEL OXIDE AND RE-USING THE REGNERATED CONTACT IN THE PROCESS.
References Cited (Backward Citations)
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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) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |