US2963418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coking and scrubbing system
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-11-12
•
Granted: 1960-12-06
•
Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Harold N Weinberg
- 👤 Jr William Lockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:43
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/28; C10G9/32; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A CONVERSION SYSTEM WHEREIN THE VAPOROUS PRODUCTS FROM A COKING ZONE ARE PASSED TO A SCRUBBING ZONE FOR SEPARATING A HEAVY END LIQUID FRACTION THEREFROM, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF WITHDRAWING SAID HEAVY END LIQUID FRACTION FROM SAID SCRUBBING ZONE, MIXING ABOUT 30 TO 70% OF SAID WITHDRAWN HEAVY END LIQUID FRACTION WITH SUBSTANTIALLY ALL THE FRESH RESIDUAL OIL FEED TO BE INTRODUCED INTO SAID COKING ZONE IN A MIXING AND SURGE ZONE SEPARATE AND DISTINCT FROM SAID COKING AND SCRUBBING ZONES, MAINTAINING A SUBSTANTIAL LIQUID HOLDUP IN SAID MIXING AND SURGE ZONE TO INSURE CONTINUOUS CIRCULATION OF LIQUID TO SAID SCRUBBING ZONE AT ALL TIMES, WITHDRAWING THE RESIDUAL OIL FEED-HEAVY END LIQUID MIXTURE THUS FORMED, CIRCULATING AT LEAST PART OF THE WITHDRAWN MIXTURE TO THE UPPER PORTION OF SAID SCRUBBING ZONE AND PASSING THE REMAINDER OF SAID WITHDRAWN MIXTURE AS FEED OIL DIRECTLY INTO SAID COKING ZONE.
Claim 2
Dependent Claim
151 words
IN A CONVERSION SYSTEM WHEREIN THE VAPOROUS PRODUCTS FROM A COKING ZONE ARE PASSED TO A SCRUBBING ZONE FOR SEPARATING A HEAVY END LIQUID FRACTION THEREFROM, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF WITHDRAWING SAID HEAVY END LIQUID FRACTION FROM SAID SCRUBBING ZONE, MIXING ABOUT 30 TO 70% OF SAID WITHDRAWN HEAVY END LIQUID FRACTION WITH SUBSTANTIALLY ALL THE FRESH RESIDUAL OIL FEED TO BE INTRODUCED INTO SAID COKING ZONE IN A MIXING AND SURGE ZONE SEPARATE AND DISTINCT FROM SAID COKING AND SCRUBBING ZONES, MAINTAINING A SUBSTANTIAL LIQUID HOLDUP IN SAID MIXING AND SURGE ZONE TO INSURE CONTINUOUS CIRCULATION OF LIQUID TO SAID SCRUBBING ZONE AT ALL TIMES, WITHDRAWING THE RESIDUAL OIL FEED-HEAVY END LIQUID MIXTURE THUS FORMED, CIRCULATING AT LEAST PART OF THE WITHDRAWN MIXTURE TO THE UPPER PORTION OF SAID SCRUBBING ZONE AND PASSING THE REMAINDER OF SAID WITHDRAWN MIXTURE AS FEED OIL DIRECTLY INTO SAID COKING ZONE.
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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) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |