US3759821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process for upgrading cracked gasolines
Assignee: Mobil Oil AS
•
Filing: 1971-03-29
•
Granted: 1973-09-18
•
Expires: 1991-03-29
Abstract
Abstract A PROCESS IS DISCLOSED FOR UPGRADING CATALYTICALLY CRACKED GASOLINE WHICH INVOLVES FRACTIONATING A CATALYTICALLY CRACKED GASOLINE INTO A C6- OVERHEAD AND A C7+ BOTTOM FRACTION AND CONTACTING THE C7+ BOTTOM FRACTION WITH A ZSM-5 TYPE ZEOLITE. THE LIQUID PRODUCT OBTAINED FROM CONTACTING THE C7+ BOTTOM FRACTION WITH THE ZSM-5 TYPE ZEOLITE IS THEREAFTER BLENDED WITH THE ORIGINAL C6- FRACTION TO GIVE A FINAL GASOLINE OF INCREASED OCTANE NUMBER. THE REACTION CAN BE CARRIED OUT IN THE ABSENCE OF HYDROGEN AND IN THE ABSENCE OF A HYDROGENATION/DEHYDROGENATION COMPONENT ON THE ZEOLITES.
Inventors
- 👤 J Brennan
- 👤 W Garwood
- 👤 H Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:23
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C10L; C10L1/00; C10L1/04; C10L1/06; Y; Y10; Y10S; Y10S208/00; Y10S208/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |