Hydrogenation of tar sand bitumen
Abstract
Abstract 1. IN A PROCESS FOR REFINING A TAR SAND DERIVED MATERIAL SELECTED FROM THE GROUP CONSISTING OF A NATURAL TAR AND BITUMEN, WHICH REFINING PROCESS INCLUDES THE STEPS OF PASSING THE FEED SUBSTANTIALLY IN THE LIQUID PHASE THROUGH A REACTION ZONE IN THE PRESENCE OF PARTICULATE CONTACT MATERIAL AND A HYDROGEN CONTAINING GAS UNDER TEMPERATURE IN THE RANGE OF 700 TO 850*F. AND HYDROGEN PARTIAL PRESSURE RANGE OF 400 TO 2000 P.S.I. WHEREIN THE CONTACT MATERIAL IS MAINTAINED IN AN EBULLATED STATE BY THE PASSAGE OF FLUIDS THROUGH THE REACTION ZONE AND AN EFFLUENT IS REMOVED FROM THE REACTION ZONE AND PASSED TO A SEPARATION ZONE AND WHEREIN THE EFFLUENT IS SEPARATED INTO AT LEAST A LIGHT OIL FRACTION AND A HEAVY OIL FRACTION, THE IMPROVEMENT WHICH COMPRISES QUENCHING THE EFFLUENT WITH A COMPATIBLE OIL FRACTION TO A TEMPERATURE BELOW COKING AT A POINT PRIOR TO THE SEPARATION OF THE EFFLUENT INTO ITS FRACTIONAL COMPONENTS.
Inventors
- 👤 E Layng
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |