US2852444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of hydrocarbons
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1953-05-12
•
Granted: 1958-09-16
•
Expires: 1973-05-12
Abstract
No abstract record available.
Inventors
- 👤 Everett H Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:35
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; C; C10; C10G; C10G9/00; C10G9/28; C10G9/32; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00079; B01J2208/00106; B01J2208/00265; B01J2208/00283; B01J2208/00477; B01J2208/00495; B01J2208/00504; B01J2208/00513; B01J2208/0053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A METHOD OF COKING HEAVY RESIDUAL HYDROCARBON WHICH COMPRISES CONTACTING RESIDUAL OIL WITH A DENSE, TURBULENT, BED OF FLUIDIZED SOLIDS IN A COKING ZONE IN THE LOWER PORTION OF AN ENLARGED UNITARY TREATING ZONE AND MAINTAINED AT COKING TEMPERATURE BY RECYCLING HOT SOLIDS FROM A BURNING ZONE TO SAID COKING ZONE, REMOVING VAPOROUS REACTION PRODUCTS CONTAINING ENTRAINED SOLIDS OVERHEAD FROM SAID DENSE BED AND PASSING THEM DIRECTLY THROUGH A RESTRICTED OPENING TO INCREASE THE VELOCITY OF FLOW TO PREVENT LIQUID FROM RE-ENTERING SAID COKING ZONE, WITHOUT GOING THROUGH A VAPOR-SOLID SEPARATING MEANS, INTO A SCRUBBLING-CONDENSING ZONE, IN THE UPPER PORTION OF SAID ENLARGED TREATING ZONE, INTRODUCTING A HIGH BOILING HYDROCARBON QUENCHING AND CONDENSING MEDIUM INTO THE UPPER PORTION OF SAID SCRUBBING-CONDENSING ZONE TO FLOW COUNTER-CURRENTLY TO THE UPFLOWING VAPOROUS REACTION PRODUCTS TO CONDENSE ALL THE NORMALLY LIQUID HYDROCARBONS ANS SCRUB OUT ENTRAINED SOLIDS, REMOVING QUENCHED LIQUIDS FROM THE BOTTOM PORTION OF SAID SCRUBBLING-CONDENSING ZONE AND WITHDRAWING SUBSTANTIALLY ONLY NORMALLY GASEOUS HYDROCARBONS FROM THE UPPER PORTION OF SAID SCRUBBING-CONDENSING ZONE.
Claim 2
Independent Claim
169 words
A METHOD OF COKING HEAVY RESIDUAL HYDROCARBON WHICH COMPRISES CONTACTING RESIDUAL OIL WITH A DENSE, TURBULENT, BED OF FLUIDIZED SOLIDS IN A COKING ZONE IN THE LOWER PORTION OF AN ENLARGED UNITARY TREATING ZONE AND MAINTAINED AT COKING TEMPERATURE BY RECYCLING HOT SOLIDS FROM A BURNING ZONE TO SAID COKING ZONE, REMOVING VAPOROUS REACTION PRODUCTS CONTAINING ENTRAINED SOLIDS OVERHEAD FROM SAID DENSE BED AND PASSING THEM DIRECTLY THROUGH A RESTRICTED OPENING TO INCREASE THE VELOCITY OF FLOW TO PREVENT LIQUID FROM RE-ENTERING SAID COKING ZONE, WITHOUT GOING THROUGH A VAPOR-SOLID SEPARATING MEANS, INTO A SCRUBBLING-CONDENSING ZONE, IN THE UPPER PORTION OF SAID ENLARGED TREATING ZONE, INTRODUCTING A HIGH BOILING HYDROCARBON QUENCHING AND CONDENSING MEDIUM INTO THE UPPER PORTION OF SAID SCRUBBING-CONDENSING ZONE TO FLOW COUNTER-CURRENTLY TO THE UPFLOWING VAPOROUS REACTION PRODUCTS TO CONDENSE ALL THE NORMALLY LIQUID HYDROCARBONS ANS SCRUB OUT ENTRAINED SOLIDS, REMOVING QUENCHED LIQUIDS FROM THE BOTTOM PORTION OF SAID SCRUBBLING-CONDENSING ZONE AND WITHDRAWING SUBSTANTIALLY ONLY NORMALLY GASEOUS HYDROCARBONS FROM THE UPPER PORTION OF SAID SCRUBBING-CONDENSING 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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |