Patent US3116231A successfully refreshed from Google Patents.
US3116231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of petroleum coke
Assignee: ConocoPhillips Co
•
Filing: 1960-08-22
•
Granted: 1963-12-31
•
Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Adee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:43
CPC Classifications
C; C10; C10B; C10B55/00; C10B33/00; C10B55/02; C10L; C10L9/00; C10L9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A PROCESS FOR THE PRODUCTION OF PETROLEUM COKE BY THE DELAYED COKING METHOD COMPRISING THE STEPS OF INTRODUCING A HEAVY PETROLEUM RESIDUUM INTO THE BOTTOM OF A COKING DRUM, SUBJECTING SAID RESIDUUM TO DELAYED COKING CONDITIONS OF TEMPERATURE AND PRESSURE TO THERMAL LY DECOMPOSE SAID RESIDUUM TO PRODUCE A MASS OF SOLID RAW COKE FILLING THE COKING DRUM, REMOVING THE RAW COKE FROM THE DRUM, CALCINING SAID RAW COKE, AND RECOVERING THE COKE FINES PRODUCED DURING THE CALCINING STEP, THE IMPROVEMENT WHICH COMPRISES INJECTING THE RECOVERED COKE FINES INTO THE COKER FEED DURING THE COKING STEP.
Claim 2
Dependent Claim
97 words
IN A PROCESS FOR THE PRODUCTION OF PETROLEUM COKE BY THE DELAYED COKING METHOD COMPRISING THE STEPS OF INTRODUCING A HEAVY PETROLEUM RESIDUUM INTO THE BOTTOM OF A COKING DRUM, SUBJECTING SAID RESIDUUM TO DELAYED COKING CONDITIONS OF TEMPERATURE AND PRESSURE TO THERMAL LY DECOMPOSE SAID RESIDUUM TO PRODUCE A MASS OF SOLID RAW COKE FILLING THE COKING DRUM, REMOVING THE RAW COKE FROM THE DRUM, CALCINING SAID RAW COKE, AND RECOVERING THE COKE FINES PRODUCED DURING THE CALCINING STEP, THE IMPROVEMENT WHICH COMPRISES INJECTING THE RECOVERED COKE FINES INTO THE COKER FEED DURING THE COKING STEP.
References Cited (Backward Citations)
US1796878A
Cited
US2315192A
Cited
US2340974A
Cited
US2852444A
Cited
US2776931A
Cited
US2813916A
Cited
US2922755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |