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US2889268A
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Method of converting hydrocarbons using a heat stable gamma alumina
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-03-06
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Granted: 1959-06-02
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Expires: 1973-03-06
Abstract
No abstract record available.
Inventors
- 👤 James A Dinwiddie
- 👤 Max A Mosesman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:28
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; C10G11/00; C10G11/02; C10G11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD OF CONVERTING HYDROCARBONS WHICH COMPRISES CONTACTING A CONVERTIBLE HYDROCARBON BOILING WITHIN THE RANGE BETWEEN 100* AND 750*F. WITH A CATALYST CONSISTING OF AN ACTIVE CATALYTIC COMPONENT AND HEAT STABLE GAMMA ALUMINA, SAID HEAT STABLE GAMMA ALUMINA BEING OBTAINED BY REACTION ALUMINUM WITH AN ALIPHATIC ALCOHOL UNDER CONDITIONS TO FORM AN ALUMINUM ALCOHOLATE, CONTACTING SAIDALUMINUM ALCOHOLATE WITH WATER VAPOR AT ATMOSPHERIC CONDITIONS FOR A TIME IN THE RANGE FROM 6 TO 128 HOURS TO HYDROLYZE SAID ALCOHOLATE TO ALUMINA ALPHA MONOHYDRATE AND HEATING SAID ALUMINA ALPHA MONOHYDRATE AT A TEMPERATURE IN THE RANGE OF 600* TO 1600*F. TO FORM SAID GAMMA ALUMINA, AT A TEMPERATURE IN THE RANGE BETWEEN 850* AND 1150*F. FOR A SUFFICIENT LENGTH OF TIME TO CONVERT SAID HYDROCARBON TO A PRODUCT OF HIGHER OCTANE NUMBER THAN THE PRODUCT OBTAINABLE WITH A SIMILAR CATALYST UNDER THE SAME CONDITIONS.
Claim 2
Independent Claim
142 words
A METHOD OF CONVERTING HYDROCARBONS WHICH COMPRISES CONTACTING A CONVERTIBLE HYDROCARBON BOILING WITHIN THE RANGE BETWEEN 100* AND 750*F. WITH A CATALYST CONSISTING OF AN ACTIVE CATALYTIC COMPONENT AND HEAT STABLE GAMMA ALUMINA, SAID HEAT STABLE GAMMA ALUMINA BEING OBTAINED BY REACTION ALUMINUM WITH AN ALIPHATIC ALCOHOL UNDER CONDITIONS TO FORM AN ALUMINUM ALCOHOLATE, CONTACTING SAIDALUMINUM ALCOHOLATE WITH WATER VAPOR AT ATMOSPHERIC CONDITIONS FOR A TIME IN THE RANGE FROM 6 TO 128 HOURS TO HYDROLYZE SAID ALCOHOLATE TO ALUMINA ALPHA MONOHYDRATE AND HEATING SAID ALUMINA ALPHA MONOHYDRATE AT A TEMPERATURE IN THE RANGE OF 600* TO 1600*F. TO FORM SAID GAMMA ALUMINA, AT A TEMPERATURE IN THE RANGE BETWEEN 850* AND 1150*F. FOR A SUFFICIENT LENGTH OF TIME TO CONVERT SAID HYDROCARBON TO A PRODUCT OF HIGHER OCTANE NUMBER THAN THE PRODUCT OBTAINABLE WITH A SIMILAR CATALYST UNDER THE SAME CONDITIONS.
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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |