US2869992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preliminary heating of fluid coke briquettes
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-01-02
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Granted: 1959-01-20
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Expires: 1977-01-02
Abstract
No abstract record available.
Inventors
- 👤 James W Brown
- 👤 Edward A Destremps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:12
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/26; C10L5/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A PROCESS FOR HEAT HARDENING BRIQUETTES OF FLUID COKE WITH AN AGGLUTINATING CARBONACEOUS HARDER SUBSTANCE AT TEMPERATURES AT WHICH THE BRIQUETTES NORMALLY TEND TO DEFORM AND OXIDIZE WHICH COMPRISES THE STEPS OF HEATING THE BRIQUETTES WHILE IN THE FORM OF A FIXED BED HAVING A DEPTH IN THE RANGE OF ABOUT 6 INCHES TO 1 FOOT FOR A TIME INTERVAL IN THE RANGE OF 10 TO 60 MINUTES WITH AN OXYGEN-CONTAINING GAS AT A TEMPERATURE OF 400* TO 1100* F. AND HAVING AN OXYGEN CONTENT IN THE RANGE OF ABOUT 2 TO 10 VOLUME PERCENT, THE AMOUNT OF OXYGEN-CONTAINING GAS UTILIZED BEING IN THE RANGE OF ABOUT 5 TO 5000 S.C.F./CU.FT. BRIQUETTES; COOLING THE THUS TREATED BRIQUETTES TO A TEMPERATURE IN THE RANGE OF ABOUT 400* TO 700* F. FOR A TIME INTERVAL OF 5 TO 20 MINUTES WHEREBY INTERNAL STRESSES ARE REMOVED AND HEATING THE BRIQUETTES WHILE IN THE FORM OF A DOWNWARD, MOVING BED TO A TEMPERATURE IN THE RANGE OF 1400* TO 2000* F. BY COUNTERCURRENT CONTACT WITH HOT INERT GASES.
Claim 2
Dependent Claim
174 words
A PROCESS FOR HEAT HARDENING BRIQUETTES OF FLUID COKE WITH AN AGGLUTINATING CARBONACEOUS HARDER SUBSTANCE AT TEMPERATURES AT WHICH THE BRIQUETTES NORMALLY TEND TO DEFORM AND OXIDIZE WHICH COMPRISES THE STEPS OF HEATING THE BRIQUETTES WHILE IN THE FORM OF A FIXED BED HAVING A DEPTH IN THE RANGE OF ABOUT 6 INCHES TO 1 FOOT FOR A TIME INTERVAL IN THE RANGE OF 10 TO 60 MINUTES WITH AN OXYGEN-CONTAINING GAS AT A TEMPERATURE OF 400* TO 1100* F. AND HAVING AN OXYGEN CONTENT IN THE RANGE OF ABOUT 2 TO 10 VOLUME PERCENT, THE AMOUNT OF OXYGEN-CONTAINING GAS UTILIZED BEING IN THE RANGE OF ABOUT 5 TO 5000 S.C.F./CU.FT. BRIQUETTES; COOLING THE THUS TREATED BRIQUETTES TO A TEMPERATURE IN THE RANGE OF ABOUT 400* TO 700* F. FOR A TIME INTERVAL OF 5 TO 20 MINUTES WHEREBY INTERNAL STRESSES ARE REMOVED AND HEATING THE BRIQUETTES WHILE IN THE FORM OF A DOWNWARD, MOVING BED TO A TEMPERATURE IN THE RANGE OF 1400* TO 2000* F. BY COUNTERCURRENT CONTACT WITH HOT INERT GASES.
References Cited (Backward Citations)
US2164933A
Cited
US2694038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |