US2807529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasification of carbonaceous solids
Assignee: Consolidation Coal Co
•
Filing: 1954-01-21
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Granted: 1957-09-24
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Expires: 1974-01-21
Abstract
No abstract record available.
Inventors
- 👤 Richard P Tarbox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:05
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/463; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933; C10J2300/0983; C10J2300/0993; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
THE METHOD OF PRODUCING WATER GAS WHICH COMPRISES PASSING STREAM IN REACTIVE RELATIONSHIO WITH CARBONACEOUS SOLIDS IN TWO SUCCESSIVE STREAM-CARBON REACTION ZONES, THE SECOND OF WHICH ALONE CONTAINS CALCIUM OXIDE AND WHICH IS MAINTAINED AT A TEMPERATURE WITHIN THE RANGE 1500 TO 1750*F., BOTH OF SAID ZONES BEING MAINTAINED AT A PRESSURE WITHIN THE RANGE 15 TO 50 ATMOSPHERES AND THE SECOND ZONE BEING ALSO MAINTAINED ABOVE THE DISSOCIATION PRESSURE OF CALCIUM CARBONATE AT THE OPERATING TEMPERATURE OF SAID ZONE, EFFECTING ONLY PARTIAL CONVERSION OF THE STREAM IN THE FIRST ZONE, TRANSFERRING THE EFFLUENT GAS AND PARTIALLY CONVERTED STEAM TO THE SECOND ZONE, MAINTAINING THE AVERAGE PARTICAL PRESSURE OF STEAM IN SAID SECOND ZONE BELOW 13 ATMOSPHERES, CONTINUING THE REACTION BETWEEN THE STEAM AND CARBONACEOUS SOLIDS IN THE SECOND ZONE IN THE PRESENCE OF SUFFICIENT CALCIUM OXIDE TO ADSORB SUBSTANTIALLY ALL OF THE CARBON DIOXIDE PRODUCED, AND RECOVERING THE GASEOUS PRODUCTS.
Claim 2
Independent Claim
151 words
THE METHOD OF PRODUCING WATER GAS WHICH COMPRISES PASSING STREAM IN REACTIVE RELATIONSHIO WITH CARBONACEOUS SOLIDS IN TWO SUCCESSIVE STREAM-CARBON REACTION ZONES, THE SECOND OF WHICH ALONE CONTAINS CALCIUM OXIDE AND WHICH IS MAINTAINED AT A TEMPERATURE WITHIN THE RANGE 1500 TO 1750*F., BOTH OF SAID ZONES BEING MAINTAINED AT A PRESSURE WITHIN THE RANGE 15 TO 50 ATMOSPHERES AND THE SECOND ZONE BEING ALSO MAINTAINED ABOVE THE DISSOCIATION PRESSURE OF CALCIUM CARBONATE AT THE OPERATING TEMPERATURE OF SAID ZONE, EFFECTING ONLY PARTIAL CONVERSION OF THE STREAM IN THE FIRST ZONE, TRANSFERRING THE EFFLUENT GAS AND PARTIALLY CONVERTED STEAM TO THE SECOND ZONE, MAINTAINING THE AVERAGE PARTICAL PRESSURE OF STEAM IN SAID SECOND ZONE BELOW 13 ATMOSPHERES, CONTINUING THE REACTION BETWEEN THE STEAM AND CARBONACEOUS SOLIDS IN THE SECOND ZONE IN THE PRESENCE OF SUFFICIENT CALCIUM OXIDE TO ADSORB SUBSTANTIALLY ALL OF THE CARBON DIOXIDE PRODUCED, AND RECOVERING THE GASEOUS PRODUCTS.
References Cited (Backward Citations)
US2662007A
Cited
US2705672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |