US3158563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for rejuvenation of hydrocracking catalysts
Assignee: Standard Oil Co
•
Filing: 1962-03-27
•
Granted: 1964-11-24
•
Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Harold A Strecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:31
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/90; B01J23/96; Y; Y10; Y10S; Y10S502/00; Y10S502/515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A HYDROCRACKING PROCESS COMPRISING CONTACTING A HYDROCRACKING CATALYST IN A CONVENTIONAL HYDROCRACKING REACTION ZONE WITH A FIRST REDUCED CRUDE OIL FEED HAVING A NITROGEN CONTENT ABOVE 500 PARTS PER MILLION BY WEIGHT AND BOILING ABOVE 800* F. UNDER HYDROCRACKING CONDITIONS UNTIL THE CATALYST IN SAID REACTION ZONE BECOMES DEACTIVATED TO A SUBSTANTIAL DEGREE, DISCONTINUING THE FLOW OF SAID FIRST REDUCED CRUDE FEED AND SUBSTITUTING AS THE FEED CONDITIONS A SECOND REDUCED CRUDE OIL CONTAINING LESS THAN ABOUT 10 PARTS PER MILLION BY WEIGHT OF NITROGEN AND HAVING A BOILING RANGE OF 350 TO 750* F. UNTIL THE CATALYST HAS BEEN SUBSTANTIALLY REGENERATED, REPEATING THE FOREGOING SEQUENCE OF FEEDS AND CONTINUOUSLY RECOVERING FROM THE REACTOR THE HYDROCRACKED PRODUCT.
Claim 2
Dependent Claim
117 words
A HYDROCRACKING PROCESS COMPRISING CONTACTING A HYDROCRACKING CATALYST IN A CONVENTIONAL HYDROCRACKING REACTION ZONE WITH A FIRST REDUCED CRUDE OIL FEED HAVING A NITROGEN CONTENT ABOVE 500 PARTS PER MILLION BY WEIGHT AND BOILING ABOVE 800* F. UNDER HYDROCRACKING CONDITIONS UNTIL THE CATALYST IN SAID REACTION ZONE BECOMES DEACTIVATED TO A SUBSTANTIAL DEGREE, DISCONTINUING THE FLOW OF SAID FIRST REDUCED CRUDE FEED AND SUBSTITUTING AS THE FEED CONDITIONS A SECOND REDUCED CRUDE OIL CONTAINING LESS THAN ABOUT 10 PARTS PER MILLION BY WEIGHT OF NITROGEN AND HAVING A BOILING RANGE OF 350 TO 750* F. UNTIL THE CATALYST HAS BEEN SUBSTANTIALLY REGENERATED, REPEATING THE FOREGOING SEQUENCE OF FEEDS AND CONTINUOUSLY RECOVERING FROM THE REACTOR THE HYDROCRACKED PRODUCT.
References Cited (Backward Citations)
US2614068A
Cited
US2911356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |