Method for pyrolysis and catalytic hydrogenation
Abstract
Abstract A PRESSURE OF ABOUTF 200-2000 P.S.I.G. IS INTRODUCED INTO A LOWER PORTION OF THE REACTION ZONE DURING THE HEATING, AT AN UPWARD VELOCITY WHICH IS SUFFICIENT TO FLUIDIZE THE CATALYST. THE GAS WILL ALSO CARRY THE FINELY DIVIDED SPENT SHALE PARTICLES AND THE VAPORIZED, HYDROGENATED SHALE OIL UPWARDLY OUT OF THE REACTION ZONE. A METHOD IS PROVIDED FOR PYROLYZING OIL SHALE WHILE SIMULATNEOUSLY HYDROGENATING SHALE OIL IN A SINGLE REACTION ZONE. BASICALLY, THE METHOD COMPRISES INTRODUCING OIL SHALE INTO THE REACTION ZONE, WHICH CONTAINS A FLUIDIZABLE HYDROGENATION CATALYST. THE OIL SHALE IS HEATED TO PYROLYSIS TEMPERATURES IN THE REACTION ZONE, WHICH VAPORIZES THE KEROGEN, PRODUCING A BREAKDOWN OF THE OIL SHALE, AND LEAVING FINELY DIVIDED PARTICLES OF SPENT SHALE. HYDROGEN UNDER
Inventors
- 👤 Gerald B Hoekstra
Bibliographic Details
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |