US3696023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking of a gas oil with zeolite and nonzeolite catalyst
Assignee: Gulf Research and Development Co
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Filing: 1970-07-23
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Granted: 1972-10-03
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Expires: 1990-07-23
Abstract
Abstract A GAS OIL IS PASSED THROUGH A SOLVENT EXTRACTION ZONE TO SEPARATE AN AROMATICS-RICH EXTRACT FRACTION FROM AN AROMATICS-LEAN RAFFINATE FRACTION. THE AROMATICS-RICH EXTRACT FRACTION IS DISTILLED TO SEPARATE A LIGHT GAS OIL EXTRACT FRACTION FROM A HEAVY GAS OIL EXTRACT FRACTION. THE AROMATICSLEAN RAFFINATE FRACTION AND THE LIGHT GAS OIL EXTRACT FRACTION ARE CRACKED IN A FLUID ZEOLITE REACTION ZONE WITHOUT ADDED HYDROGEN TO PRODUCE A FIRST GASOLINE PRODUCT. THE HEAVY GAS OIL EXTRACT FRACTION IS CRACKED IN A FLUID NONZEOLITE CRACKING ZONE WITHOUT ADDED HYDROGEN TO PRODUCE A SECOND GASOLINE PRODUCT. THE FIRST AND SECOND GASOLINE PRODUCTS ARE BLENDED.
Inventors
- 👤 Robert W Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:02
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04
Claims Analysis
Total Claims: 0
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References 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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |