US2733189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Niowoa
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:45
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A PROCESS OF DESULFURIZING A HIGH BOILING PETROLEUM OIL WHICH COMPRISES CONTACTING THE PETROLEUM OIL, SUBSTANTIALLY IN VAPOR PHASE, WITH HYDROGEN IN THE PRESENCE OF A HYDROGENATION CATALYST AT A PRESSURE BETWEEN ABOUT 250 AND 2,000 P.S.I. AT A TEMPERATURE BETWEEN ABOUT 750* AND 900* F., CONTINUING SUCH CONTACTING UNTIL A SUBSTANTIAL AMOUNT, BUT LESS THAN ABOUT SIXTEEN PARTS OF OIL HAVE BEEN CONTACTED WITH ONE PART OF THE HYDROGENATION CATALYST, TER MINATING THE CONTACTING, REGENERATING THE HYDROGENATION CATALYST, AGAIN CONTACTING THE OIL WITH THE REGENERATED HYDROGENATION CATALYST UNDER THE CONDITIONS SPECIFIED ABOVE, THE IMPROVEMENT WHICH COMPRISES REMOVING LOWER BOILING COMPONENTS FROM THE DESULFURIZED PRODUCT SO PRODUCED, HEATING THE REMAINDER OF THE DESULFRIZED PRODUCT AT A TEMPERATURE BETWEEN ABOUT 375* AND 500* F. FOR A PERIOD BETWEEN ABOUT 15 MINUTES AND 3 HOURS, WHEREBY RESIDUAL SULFUROUS MATERIAL IN THE DESULFURIZED PRODUCT IS CONVERTED INTO HYDROGEN SULFIDE AND REMOVING THEREFROM.
Claim 2
Dependent Claim
150 words
IN A PROCESS OF DESULFURIZING A HIGH BOILING PETROLEUM OIL WHICH COMPRISES CONTACTING THE PETROLEUM OIL, SUBSTANTIALLY IN VAPOR PHASE, WITH HYDROGEN IN THE PRESENCE OF A HYDROGENATION CATALYST AT A PRESSURE BETWEEN ABOUT 250 AND 2,000 P.S.I. AT A TEMPERATURE BETWEEN ABOUT 750* AND 900* F., CONTINUING SUCH CONTACTING UNTIL A SUBSTANTIAL AMOUNT, BUT LESS THAN ABOUT SIXTEEN PARTS OF OIL HAVE BEEN CONTACTED WITH ONE PART OF THE HYDROGENATION CATALYST, TER MINATING THE CONTACTING, REGENERATING THE HYDROGENATION CATALYST, AGAIN CONTACTING THE OIL WITH THE REGENERATED HYDROGENATION CATALYST UNDER THE CONDITIONS SPECIFIED ABOVE, THE IMPROVEMENT WHICH COMPRISES REMOVING LOWER BOILING COMPONENTS FROM THE DESULFURIZED PRODUCT SO PRODUCED, HEATING THE REMAINDER OF THE DESULFRIZED PRODUCT AT A TEMPERATURE BETWEEN ABOUT 375* AND 500* F. FOR A PERIOD BETWEEN ABOUT 15 MINUTES AND 3 HOURS, WHEREBY RESIDUAL SULFUROUS MATERIAL IN THE DESULFURIZED PRODUCT IS CONVERTED INTO HYDROGEN SULFIDE AND REMOVING THEREFROM.
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) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |