Furnace oil from waxy gas oils
Abstract
Abstract LOW POUR POINT LIGHT CYCLE GAS OIL FOR USE AS FURNACE OIL MAY BE OBTAINED WHEN CATALYTICALLY CRACKING A WAXY GAS OIL IF THE LIGHT GAS OIL FRACTION FROM THE CATALYTIC CRACKING UNIT IS LIMITED TO A BOILING RANGE OF ABOUT 430550*F. WHILE AN INTERMEDIATE GAS OIL FRACTION THEREFROM HAVING AN INITIAL BOILING POINT OF ABOUT 550 AND AN END POINT IN THE RANGE OF 650 TO 750*F. IS RECYCLED TO EXTINCTION BACK TO THE FEED TO THE CATALYTIC CRACKER. THE VIRGIN GAS OIL TO THE CATALYTIC CRACKER MAY HAVE AN IBP OF ABOUT 430 OR ABOUT 550*F. TO MAXIMIZE FURNACE OIL PRODUCTION WHEN THE IBP OF THE WAXY GAS OIL FEED TO THE CATALYTIC CRACKER IS ABOUT 550*F., THE LIGHT GAS OIL FRACTION FROM THE CATALYTIC CRACKER IS ADMIXED WITH A VIRGIN WAXY GAS OIL HAVING A BOILING RANGE OF ABOUT 430-550*F.
Inventors
- 👤 Douglas J Youngblood
- 👤 John M Weiss
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |