US3769203A
Expired / Lapsed
US
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Thermal energy control for a fcc system
Assignee: Mobil Oil AS
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Filing: 1971-06-21
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Granted: 1973-10-30
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Expires: 1991-06-21
Abstract
Abstract THE SPECIFIC DISCLOSURE PROVIDES FOR SEPARATE REGENERATOR AND REACTOR TEMPERATURE CONTROLS FOR A FLUID CATALYTIC CRACKING PROCESS WHILE MAINTAINING A PREDETERMINED CATALYST CIRCULATION RATE. THE CONTROLS PROVIDE FOR INDEPENDENT ADJUSTMENT OF THE TEMPERATURE OF THE FEED STOCK OIL FOR THE REACTOR, AND OF THE TEMPERATURE OF THE OXYGEN-CONTAINING GAS FOR THE REGENERATOR TO MAINTAIN PREDETERMINED TEMPERATURES IN THE REACTOR AND IN THE REGENERATOR, RESPECTIVELY.
Inventors
- 👤 W Lee
- 👤 V Weekman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G11/187; B; B01; B01J; B01J37/00; B01J37/12; B01J37/14; B01J8/00; B01J8/18; B01J8/24; B01J8/26; Y; Y10; Y10S; Y10S208/00; Y10S208/01
Claims Analysis
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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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |