US2890998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid contact coking of hydrocarbon oils
Assignee: Texaco Inc
•
Filing: 1954-11-29
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Granted: 1959-06-16
•
Expires: 1974-11-29
Abstract
No abstract record available.
Inventors
- 👤 Williamson Tom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:09
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C10G; C10G9/00; C10G9/28; C10G9/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN THE CRACKING AND COKING OF HYDROCARBON OILS, THE PROCESS THAT COMPRISES FEEDING THE OIL INTO A REACTION ZONE WHEREIN THE OIL IS CONTACTED WITH A FLUIDIZED MASS OF COKE PARTICLES AT COKING TEMPERATURE AND CONVERSION TO LIGHTER HYDROCARBONS AND COKE EFFECTED, WITHDRAWING COKE PARTICLES FROM SAID REACTION ZONE, DISPERSING THE WITHDRAWN COKE PARTICLES IN A STREAM OF STEAM, PASSING THE STREAM OF STEAM AND DISPERSED COKE PARTICLES AS A CONFINED STREAM THROUGH AN INDIRECT HEAT EXCHANGE ZONE, HEATING SAID CONFINED STREAM BY INDIRECT HEAT EXCHANGE IN SAID INDIRECT HEAT EXCHANGE ZONE TO A TEMPERATURE ABOVE THAT OBTAINING IN SAID REACTION ZONE, DIRECTING THE HEATED STREAM OF STEAM AND COKE TO A SEPARATION ZONE WHEREIN COKE PARTICLES ARE SEPARATED FROM STEAM, DELIV-
Claim 2
Dependent Claim
122 words
IN THE CRACKING AND COKING OF HYDROCARBON OILS, THE PROCESS THAT COMPRISES FEEDING THE OIL INTO A REACTION ZONE WHEREIN THE OIL IS CONTACTED WITH A FLUIDIZED MASS OF COKE PARTICLES AT COKING TEMPERATURE AND CONVERSION TO LIGHTER HYDROCARBONS AND COKE EFFECTED, WITHDRAWING COKE PARTICLES FROM SAID REACTION ZONE, DISPERSING THE WITHDRAWN COKE PARTICLES IN A STREAM OF STEAM, PASSING THE STREAM OF STEAM AND DISPERSED COKE PARTICLES AS A CONFINED STREAM THROUGH AN INDIRECT HEAT EXCHANGE ZONE, HEATING SAID CONFINED STREAM BY INDIRECT HEAT EXCHANGE IN SAID INDIRECT HEAT EXCHANGE ZONE TO A TEMPERATURE ABOVE THAT OBTAINING IN SAID REACTION ZONE, DIRECTING THE HEATED STREAM OF STEAM AND COKE TO A SEPARATION ZONE WHEREIN COKE PARTICLES ARE SEPARATED FROM STEAM, DELIV-
References Cited (Backward Citations)
US2734853A
Cited
US2707702A
Cited
US2731400A
Cited
FR1062587A
Cited
US2731508A
Cited
US2813916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |