US2946742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mild hydrogenation of catalytic reformate
Assignee: Tidewater Oil Co
•
Filing: 1958-01-02
•
Granted: 1960-07-26
•
Expires: 1978-01-02
Abstract
No abstract record available.
Inventors
- 👤 Louis D Rampino
- 👤 Milton J Gorham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:03
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD FOR IMPROVING THE STORAGE STABILITY AND INDUCTION-SYSTEM CLEANLINESS OF A SUBSTANTIALLY NON-OLEFINIC NAPHTHA REFORMATE THAT HAS BEEN SEVERELY REFORMED IN THE PRESENCE OF PLATINUM CATALYST AND HYDROGEN AT TEMPERATURES ABOVE 900*F., WITH THE PRODUCTION OF ADDITIONAL HYDROGEN AND UNDER CONDITIONS SUFFICIENT TO MAINTAIN THE BROMINE NUMBER OF THE REFORMATE BELOW ABOUT 4.5, SAID METHOD COMPRISING MILDLY HYDROGENATING SAID REFORMATE IN THE ABSENCE OF ADDED OLEFINS AND IN THE PRESENCE OF A HYDROGENATION CATALYST AT A TEMPERATURE BETWEEN 450* AND 600*F., AT SUBSTANTIALLY THE SAME PRESSURE AS THE CATALYTIC REFORMING AND AT A LIQUID HOURLY SPACE VELOCITY OF APPROXIMATELY 30, SAID HYDROGENATION BEING INSUFFICIENT TO CAUSE A SIGNIFICANT REDUCTION IN THE RESEARCH OCTANE RATING OF THE REFORMATE.
Claim 2
Independent Claim
118 words
A METHOD FOR IMPROVING THE STORAGE STABILITY AND INDUCTION-SYSTEM CLEANLINESS OF A SUBSTANTIALLY NON-OLEFINIC NAPHTHA REFORMATE THAT HAS BEEN SEVERELY REFORMED IN THE PRESENCE OF PLATINUM CATALYST AND HYDROGEN AT TEMPERATURES ABOVE 900*F., WITH THE PRODUCTION OF ADDITIONAL HYDROGEN AND UNDER CONDITIONS SUFFICIENT TO MAINTAIN THE BROMINE NUMBER OF THE REFORMATE BELOW ABOUT 4.5, SAID METHOD COMPRISING MILDLY HYDROGENATING SAID REFORMATE IN THE ABSENCE OF ADDED OLEFINS AND IN THE PRESENCE OF A HYDROGENATION CATALYST AT A TEMPERATURE BETWEEN 450* AND 600*F., AT SUBSTANTIALLY THE SAME PRESSURE AS THE CATALYTIC REFORMING AND AT A LIQUID HOURLY SPACE VELOCITY OF APPROXIMATELY 30, SAID HYDROGENATION BEING INSUFFICIENT TO CAUSE A SIGNIFICANT REDUCTION IN THE RESEARCH OCTANE RATING OF THE REFORMATE.
References Cited (Backward Citations)
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US2534025A
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US2458980A
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US2542471A
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US2740751A
Cited
US2877172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |