US2992182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization of residual stocks
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-04-23
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Granted: 1961-07-11
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Expires: 1979-04-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Elzinga
- 👤 John E Idenden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:59
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/20; C; C10; C10G; C10G45/00; C10G45/02; C10G45/24; C10G45/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN CATALYTIC DESULFURIZATION OF A HEAVY PETROLEUM OIL FEED STOCK WITH THE AID OF A FINELY DIVIDED HYDROGENATION CATALYST SLURRIED IN THE OIL UNDER CONDITIONS FAVORING FORMATION OF HYDROGEN GAS AND DESULFURIZATION OF THE OIL BY SAID HYDROGEN GAS, THE IMPROVEMENT WHICH COMPRISES REPEATEDLY RECIRCULATING AND REDISPERSING HYDROGEN GAS WITH VAPORS FORMED FROM THE OIL FEED STOCK INTO INTIMATE ADMIXTURE WITH THE OIL SLURRY MAINTAINED IN A REACTION ZONE AT A TEMPERATURE IN THE RANGE OF 750* TO 950* TO 950*F. UNDER A PRESSURE OF 50 TO 400 P.S.I.G., WHILE SAID OIL SLURRY IS ADDITIONALLY AGITATED INTO TURBULENT MOTION IN THE REACTION ZONE TO MAKE THE GAS AND OIL SLURRY MIXTURE HOMOGENEOUS DURING A PERIOD THAT THE OIL IS THUS TREATED FOR LOWERING ITS SULFUR CONTENT.
Claim 2
Dependent Claim
126 words
IN CATALYTIC DESULFURIZATION OF A HEAVY PETROLEUM OIL FEED STOCK WITH THE AID OF A FINELY DIVIDED HYDROGENATION CATALYST SLURRIED IN THE OIL UNDER CONDITIONS FAVORING FORMATION OF HYDROGEN GAS AND DESULFURIZATION OF THE OIL BY SAID HYDROGEN GAS, THE IMPROVEMENT WHICH COMPRISES REPEATEDLY RECIRCULATING AND REDISPERSING HYDROGEN GAS WITH VAPORS FORMED FROM THE OIL FEED STOCK INTO INTIMATE ADMIXTURE WITH THE OIL SLURRY MAINTAINED IN A REACTION ZONE AT A TEMPERATURE IN THE RANGE OF 750* TO 950* TO 950*F. UNDER A PRESSURE OF 50 TO 400 P.S.I.G., WHILE SAID OIL SLURRY IS ADDITIONALLY AGITATED INTO TURBULENT MOTION IN THE REACTION ZONE TO MAKE THE GAS AND OIL SLURRY MIXTURE HOMOGENEOUS DURING A PERIOD THAT THE OIL IS THUS TREATED FOR LOWERING ITS SULFUR CONTENT.
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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |