Patent US2840462A successfully refreshed from Google Patents.
US2840462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high btu-content gas from carbonaceous solid fuels
Assignee: Consolidation Coal Co
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Filing: 1955-05-12
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Granted: 1958-06-24
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Expires: 1975-05-12
Abstract
No abstract record available.
Inventors
- 👤 Gorin Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:11
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/72; C10J3/721; C10J3/46; C10J3/463; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933; C10J2300/0953; C10J2300/0966; C10J2300/0973; C10J2300/16; C10J2300/164; C10J2300/1656; C10J2300/1662; C10J2300/18; C10J2300/1807; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
THE METHOD OF PREPARING HIGH B. T. U.-CONTENT GASES FROM CARBONACEOUS SOLIDS WHICH COMPRISES REACTING CARBONACEOUS SOLIDS WITH PREHEATED STEAM AT A CONVERSION RATE IN EXCESS OF 40 PERCENT IN A GASIFICATION ZONE AT A TEMPERATURE IN THE RANGE 1450 TO 1600*F. AND AT A PRESSURE EXCEEDING 30 ATMOSPHERES, CONCURRENTLY REACTING CARBONACEOUS SOLIDS WITH PREHEATED HYDROGEN IN A HYDROGENATION ZONE AT A TEMPERATURE IN THE RANGE 1550 TO 1700* F. AND AT A PRESSURE EXCEEDING 30 ATMOSPHERES, MAINTAINING SAID HYDROGENATION ZONE AT AN AVERAGE TEMPERATURE OF 20 TO 100*F. ABOVE THAT OF SAID GASIFICATION ZONE, TRANSFERRING CARBONACEOUS SOLIDS FROM SAID HYDROGENATION ZONE TO SAID GASIFICATION ZONE, TRANSFERRING CARBONACEOUS SOLIDS FROM SAID GASIFICATION ZONE TO SAID HYDROGENATION ZONE, RECOVERING GASEOUS REACTION PRODUCTS FROM EACH OF SAID ZONES, REACTING SUBSTANTIALLY ALL CARBON MONOXIDE THEREIN WITH WATER TO FORM CARBON DIOXIDE AND HYDROGEN, THEREAFTER REMOVING THEREFROM SUBSTANTIALLY ALL CARBON DIOXIDE AND HYDROGEN SULFIDE, RECOVERING FROM THE RESIDUE OF SAID GASEOUS REACTION PRODUCTS A HIGH B. T. U.-CONTENT PRODUCT GAS AND RECYCLING THE REMAINDER OF SAID GASEOUS REACTION PRODUCTS AS SUBSTANTIALLY PURE HYDROGEN GAS AT AN ELEVATED TEMPERATURE TO SAID HYDROGENATION ZONE.
Claim 2
Independent Claim
188 words
THE METHOD OF PREPARING HIGH B. T. U.-CONTENT GASES FROM CARBONACEOUS SOLIDS WHICH COMPRISES REACTING CARBONACEOUS SOLIDS WITH PREHEATED STEAM AT A CONVERSION RATE IN EXCESS OF 40 PERCENT IN A GASIFICATION ZONE AT A TEMPERATURE IN THE RANGE 1450 TO 1600*F. AND AT A PRESSURE EXCEEDING 30 ATMOSPHERES, CONCURRENTLY REACTING CARBONACEOUS SOLIDS WITH PREHEATED HYDROGEN IN A HYDROGENATION ZONE AT A TEMPERATURE IN THE RANGE 1550 TO 1700* F. AND AT A PRESSURE EXCEEDING 30 ATMOSPHERES, MAINTAINING SAID HYDROGENATION ZONE AT AN AVERAGE TEMPERATURE OF 20 TO 100*F. ABOVE THAT OF SAID GASIFICATION ZONE, TRANSFERRING CARBONACEOUS SOLIDS FROM SAID HYDROGENATION ZONE TO SAID GASIFICATION ZONE, TRANSFERRING CARBONACEOUS SOLIDS FROM SAID GASIFICATION ZONE TO SAID HYDROGENATION ZONE, RECOVERING GASEOUS REACTION PRODUCTS FROM EACH OF SAID ZONES, REACTING SUBSTANTIALLY ALL CARBON MONOXIDE THEREIN WITH WATER TO FORM CARBON DIOXIDE AND HYDROGEN, THEREAFTER REMOVING THEREFROM SUBSTANTIALLY ALL CARBON DIOXIDE AND HYDROGEN SULFIDE, RECOVERING FROM THE RESIDUE OF SAID GASEOUS REACTION PRODUCTS A HIGH B. T. U.-CONTENT PRODUCT GAS AND RECYCLING THE REMAINDER OF SAID GASEOUS REACTION PRODUCTS AS SUBSTANTIALLY PURE HYDROGEN GAS AT AN ELEVATED TEMPERATURE TO SAID HYDROGENATION ZONE.
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |