US2557680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized process for the carbonization of carbonaceous solids
Assignee: Standard Oil Development Co
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Filing: 1947-02-15
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Granted: 1951-06-19
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Expires: 1967-02-15
Abstract
No abstract record available.
Inventors
- 👤 William W Odell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:45
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/06; C10J3/12; C10B; C10B49/00; C10B49/16; C10B49/20; C10B49/22; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10; C10G; C10G9/00; C10G9/28; C10G9/32; C10J3/46; C10J3/48; C10J3/482; C10J3/72; C10J3/721; C10J3/78; C10K; C10K1/00; C10K1/02; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0946; C10J2300/0953; C10J2300/0956; C10J2300/0959; C10J2300/0983; C10J2300/0993; C10J2300/18; C10J2300/1807; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
330 words
IN THE PROCESS FOR HEAT-TREATING CARBONACEOUS SOLIDS BY INTIMATELY CONTACTING A DENSE TURBULENT BED OF SUBDIVIDED CARBONACEOUS SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GAS STEAM IN A REACTOR WITH A HOT SUBDIVIDED SOLID HEAT CARRIED HAVING A LOWER GAS ENTRAINABILITY THAN SAID CARBONACEOUS SOLIDS, WHICH CARBONACEOUS SOLIDS ARE ALSO HIGHLY HEATED IN A SEPARATE HEATER IN THE FORM OF A FLUIDIZED SOLIDS MASS, SEPARATING HEAT TREATED CARBONACEOUS SOLIDS FROM COOLED HEAT CARRIER BY VIRTUE OF THE DIFFERENT FLUIDIZABLE CHARACTERISTICS BETWEEN THE CARBONACEOUS SOLIDS AND THE HEAT CARRIER AND RETURNING COOLED HEAT CARRIER TO SAID HEATER, THE IMPROVEMENT WHICH COMPRISES FEEDING SAID CARRIER TO THE UPPER PORTION OF SAID HEATER, FEEDING FUEL AND A COMBUSTION-SUPPORTING GAS TO A LOWER PORTION OF SAID HEATER, CONDUCTING A HEAT-GENERATING COMBUSTION IN SAID LOWER PORTION, PASSING HOT COMBUSTION GASES FROM SAID LOWER PORTION TO SAID UPPER PORTION, ADJUSTING THE SUPERIFICAL VELOCITY OF SAID COMBUSTION GASES SO AS TO PERCOLATE SAID CARRIER FROM SAID UPPER PORTION DOWNWARDLY TO SAID LOWER PORTION COUNTERCURRENTLY TO UPFLOWING COMBUSTION GASES THROUGH A MULTITUDE OF NARROW PASSAGEWAYS IRREGULAR WITH RESPECT TO SHAPE, DIAMETER AND DIRECTION EXTENDING OVER A SUBSTANTIAL HEIGHT AND OCCUPYING THE ENTIRE CROSS-SECTIONAL AREA OF AN INTERMEDIATE PORTION OF SAID HEATER, FURTHER HEATING SAID CARRIER IN SAID LOWER PORTION BY SAID COMBUSTION, WITHDRAWING HOT HEAT CARRIER FROM SAID LOWER PORTION, INTRODUCING HOT HEAT CARRIER SO WITHDRAWN AND FRESH CARBONACEOUS SOLIDS INTO AN INTERMEDIATE AREA OF SAID REACTOR, ADJUSTING THE SUPERFICIAL GAS VELOCITY IN SAID REACTOR SO AS TO CAUSE SAID HEAT CARRIER TO FLOW DOWNWARDLY IN SAID REACTOR, WITHDRAWING COOLED HEAT CARRIER FROM A LOWER PORTION OF SAID REACTOR AND RETURNING SAID COOLED HEAT CARRIER SOLIDS TO AN UPPER PORTION OF SAID HEATER, PASSING CARBONACEOUS SOLIDS UPWARDLY THROUGH SAID REACTOR AS A RESULT OF SAID ADJUSTED GAS VELOCITY TO AN UPPER EXPANDED PORTION OF SAID REACTOR, WITHDRAWING VOLATILE HEAT-TREATED PRODUCTS OVERHEAD FROM SAID REACTOR, AND WITHDRAWING HEAT-TREATED CARBONACEOUS SOLIDS FROM THE SAID UPPER EXPANDED PORTION OF SAID FLUIDIZED BED.
Claim 2
Dependent Claim
330 words
IN THE PROCESS FOR HEAT-TREATING CARBONACEOUS SOLIDS BY INTIMATELY CONTACTING A DENSE TURBULENT BED OF SUBDIVIDED CARBONACEOUS SOLIDS FLUIDIZED BY AN UPWARDLY FLOWING GAS STEAM IN A REACTOR WITH A HOT SUBDIVIDED SOLID HEAT CARRIED HAVING A LOWER GAS ENTRAINABILITY THAN SAID CARBONACEOUS SOLIDS, WHICH CARBONACEOUS SOLIDS ARE ALSO HIGHLY HEATED IN A SEPARATE HEATER IN THE FORM OF A FLUIDIZED SOLIDS MASS, SEPARATING HEAT TREATED CARBONACEOUS SOLIDS FROM COOLED HEAT CARRIER BY VIRTUE OF THE DIFFERENT FLUIDIZABLE CHARACTERISTICS BETWEEN THE CARBONACEOUS SOLIDS AND THE HEAT CARRIER AND RETURNING COOLED HEAT CARRIER TO SAID HEATER, THE IMPROVEMENT WHICH COMPRISES FEEDING SAID CARRIER TO THE UPPER PORTION OF SAID HEATER, FEEDING FUEL AND A COMBUSTION-SUPPORTING GAS TO A LOWER PORTION OF SAID HEATER, CONDUCTING A HEAT-GENERATING COMBUSTION IN SAID LOWER PORTION, PASSING HOT COMBUSTION GASES FROM SAID LOWER PORTION TO SAID UPPER PORTION, ADJUSTING THE SUPERIFICAL VELOCITY OF SAID COMBUSTION GASES SO AS TO PERCOLATE SAID CARRIER FROM SAID UPPER PORTION DOWNWARDLY TO SAID LOWER PORTION COUNTERCURRENTLY TO UPFLOWING COMBUSTION GASES THROUGH A MULTITUDE OF NARROW PASSAGEWAYS IRREGULAR WITH RESPECT TO SHAPE, DIAMETER AND DIRECTION EXTENDING OVER A SUBSTANTIAL HEIGHT AND OCCUPYING THE ENTIRE CROSS-SECTIONAL AREA OF AN INTERMEDIATE PORTION OF SAID HEATER, FURTHER HEATING SAID CARRIER IN SAID LOWER PORTION BY SAID COMBUSTION, WITHDRAWING HOT HEAT CARRIER FROM SAID LOWER PORTION, INTRODUCING HOT HEAT CARRIER SO WITHDRAWN AND FRESH CARBONACEOUS SOLIDS INTO AN INTERMEDIATE AREA OF SAID REACTOR, ADJUSTING THE SUPERFICIAL GAS VELOCITY IN SAID REACTOR SO AS TO CAUSE SAID HEAT CARRIER TO FLOW DOWNWARDLY IN SAID REACTOR, WITHDRAWING COOLED HEAT CARRIER FROM A LOWER PORTION OF SAID REACTOR AND RETURNING SAID COOLED HEAT CARRIER SOLIDS TO AN UPPER PORTION OF SAID HEATER, PASSING CARBONACEOUS SOLIDS UPWARDLY THROUGH SAID REACTOR AS A RESULT OF SAID ADJUSTED GAS VELOCITY TO AN UPPER EXPANDED PORTION OF SAID REACTOR, WITHDRAWING VOLATILE HEAT-TREATED PRODUCTS OVERHEAD FROM SAID REACTOR, AND WITHDRAWING HEAT-TREATED CARBONACEOUS SOLIDS FROM THE SAID UPPER EXPANDED PORTION OF SAID FLUIDIZED BED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |