US2958644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high octane motor fuels
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-05-01
•
Granted: 1960-11-01
•
Expires: 1977-05-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Newton Kimberlin
- 👤 Mattox William Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:58
CPC Classifications
C; C10; C10G; C10G61/00; C10G61/02; C10G61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A METHOD FOR PRODUCING 100+ RESEARCH OCTANE NUMBER PRODUCTS FROM HYDROCARBON FRACTIONS BOILING IN THE RANGE OF FROM ABOUT 110-375*F. WHICH COMPRISES CONTACTING SAID FRACTIONS I N ADMIXTURE WITH A HYDROGEN RICH GAS WITH A HYDROFORMING CATALYST AT TEMPERATURES OF 800-975*F. AND AT PRESSURE UP TO ABOUT 400 P.S.I.G., MAINTAINING SAID HYDROCARBONS IN CONTCT WITH THE CATALYST FOR A PERIOD SUFFICIENT TO PRODUCE A C5+ HYDROGORMATE HAVING A RESEARCH CLEAR OCTANE NUMBER OF AT LEAST 90 SEPARATING THE HYDROFORMATE FROM THE ACCOMPANYING NORMALLY GASEOUS MATERIAL, VAPORIZING THE HYDROFORMATE, PASSING THE HYDROFORMATE VAPORS THROUGH A BED OF MOLECULAR SIEVES HAVING PORE DIAMETERS OF ABOUT 5 A. WHICH SELECTIVELY ADSORBS NORMAL PARAFFINS FROM THE HYDROFORMATE VAPORS, AND RECOVERING HYDROFORMATE SUBSTANTIALLY FREE FROM NORMAL PARAFFINS.
Claim 2
Independent Claim
122 words
A METHOD FOR PRODUCING 100+ RESEARCH OCTANE NUMBER PRODUCTS FROM HYDROCARBON FRACTIONS BOILING IN THE RANGE OF FROM ABOUT 110-375*F. WHICH COMPRISES CONTACTING SAID FRACTIONS I N ADMIXTURE WITH A HYDROGEN RICH GAS WITH A HYDROFORMING CATALYST AT TEMPERATURES OF 800-975*F. AND AT PRESSURE UP TO ABOUT 400 P.S.I.G., MAINTAINING SAID HYDROCARBONS IN CONTCT WITH THE CATALYST FOR A PERIOD SUFFICIENT TO PRODUCE A C5+ HYDROGORMATE HAVING A RESEARCH CLEAR OCTANE NUMBER OF AT LEAST 90 SEPARATING THE HYDROFORMATE FROM THE ACCOMPANYING NORMALLY GASEOUS MATERIAL, VAPORIZING THE HYDROFORMATE, PASSING THE HYDROFORMATE VAPORS THROUGH A BED OF MOLECULAR SIEVES HAVING PORE DIAMETERS OF ABOUT 5 A. WHICH SELECTIVELY ADSORBS NORMAL PARAFFINS FROM THE HYDROFORMATE VAPORS, AND RECOVERING HYDROFORMATE SUBSTANTIALLY FREE FROM NORMAL PARAFFINS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |