Upgrading wide range gasoline stocks
Abstract
Abstract A PROCESS FOR UPGRADING WIDE RANGE GASOLINE STOCKS IS DISCLOSED WHEREIN THE FEED IS SEPARATED INTO C5, C6-C8 AND C9+ FRACTIONS, THE C6-C8 AND C9+ FRACTIONS ARE SEPARATELY REFORMED, REFORMATE FROM THE C9+ FRACTION IS DISTILLED TO REMOVE C5-C8 MATERIAL AND YIELD A HEAVY AROMATIC PRODUCT OF HIGH ANTIKNOCK VALUE, SAID C5-C8 MATERIAL IS COMBINED WITH REFORMATE FROM SAID C6-C8 FRACTION AND WITH AROMATIC DEHYDROCYCLIZATE FROM A SUBSEQUENT STEP, THE RESULTING MIXTURE IS EXTRACTED WITH AN AROMATIC-SELECTIVE SOLVENT TO YIELD A RAFFINATE AND C6-C8 AROMATIC PRODUCT OF HIGH PURITY AND ANTIKNOCK VALUE, THE RAFFINATE IS DISTILLED TO OBTAIN A C5-C6 PARAFFINIC FRACTION AND A HEAVY PARAFFINIC FRACTION, THE LATTER IS CATALYTICALLY DEHYDROCYCLIZED TO YIELD SAID AROMATIC DEHYDROCYCLIZATE, THE C5-C6 PARAFFINIC FRACTION IS COMBINED WITH SAID C5 FRACTION AND THE MIXTURE IS CATALYTICALLY ISOMERIZED.
Inventors
- 👤 A Pollock
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |