US3556749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for the hydrogenation of coal
Assignee: General Electric Co
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Filing: 1968-07-05
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Granted: 1971-01-19
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Expires: 1988-07-05
Abstract
Abstract THE CONVERSION OF COAL TO METHANE BY REACTION THEREOF WITH HYDROGEN GAS AT ELEVATED TEMPERATURES AND PRESSURES IN THE PRESENCE OF A CATALYST IN A GASIFIER APPARATUS WHEREIN THE HYDROGEN GAS REQUIRED IS SUPPLIED BY THE DISSOCIATION OF WATER VAPOR. POWER FOR THE DISSOCIATION IS GENERATED IN A POWER STATION IN WHICH CARBONACEOUS CHAR (WHICH IS A BY-PRODUCT OF THE COAL HYDROGENATION OCCURING IN THE GASIFIER) AND AIR (WHICH MAY, IF DESIRED, BY ENRICHED BY OXYGEN PRODUCED DURING THE DISSOCIATION) ARE BURNED. THE DISSOCIATION IS ACCOMPLISHED IN SOLID OXYGEN-ION ELECTROLYTE CELLS PREFERABLY OPERATING AT TEMPERATURES IN EXCESS OF 800*C.
Inventors
- 👤 Henry S Spacil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:03
CPC Classifications
C; C10; C10J; C10J1/00; C10J1/207; C10J2300/00; C10J2300/09; C10J2300/0903; C10J2300/0913; C10J2300/093; C10J2300/094; C10J2300/0953; C10J2300/0973; C10J2300/16; C10J2300/164; C10J2300/1643; C10J2300/1646; C10J2300/1671; C10J2300/18; C10J2300/1853
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |