US3852190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming with platinum on alumina derived from a byproduct of a ziegler process
Assignee: Chevron USA Inc
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Filing: 1972-10-27
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Granted: 1974-12-03
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Expires: 1992-10-27
Abstract
Abstract A process for reforming a naptha feedstock by contacting the feedstock at reforming conditions with a catalyst containing 0.01 to 5 weight per cent platinum disposed on an alumina support wherein the alumina is obtained by removing water from aluminum hydroxide produced as a byproduct from a Ziegler higher alcohol synthesis reaction and wherein the alumina is calcined so as to have a surface area of 140-240 square meters per gram. Preferably the catalyst also contains rhenium disposed on said byproduct alumina. Preferably the alumina is calcined at a temperature between about 1,150* and 1,300*F. prior to disposing the platinum and/or rhenium on the alumina.
Inventors
- 👤 W Buss
- 👤 H Kluksdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:19
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/656; B01J23/6567; B01J37/00; B01J37/08; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; C10G35/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
A PROCESS FOR REFORMING A NAPHTA FEEDSTOCK WHICH COMPRISES CONTACTING THE FEEDSTOCK AT REFORMING CONDITIONS WITH A CATALYST COMPRISING 0.01 TO 5 WEIGHT PERCENT ALUMINA IS OBTAINED POSED ON AN ALUMINA SUPPORT WHEREIN THE ALUMINA IS OBTAINED BY REMOVING WATER FROM ALUMINUM HYDROXIDE PRODUCED AS A BYPRODUCT FROM A ZIEGLER HIGHER ALCOHOL SYNTHESIS REACTION AND WHEREIN THE ALUMINA IS CALCINED AT 1,150* TO 1,350*F. SO AS TO HAVE A SURFACE AREA OF 165-215 SQUARE METERS PER GRAM.
Claim 2
Dependent Claim
77 words
A PROCESS FOR REFORMING A NAPHTA FEEDSTOCK WHICH COMPRISES CONTACTING THE FEEDSTOCK AT REFORMING CONDITIONS WITH A CATALYST COMPRISING 0.01 TO 5 WEIGHT PERCENT ALUMINA IS OBTAINED POSED ON AN ALUMINA SUPPORT WHEREIN THE ALUMINA IS OBTAINED BY REMOVING WATER FROM ALUMINUM HYDROXIDE PRODUCED AS A BYPRODUCT FROM A ZIEGLER HIGHER ALCOHOL SYNTHESIS REACTION AND WHEREIN THE ALUMINA IS CALCINED AT 1,150* TO 1,350*F. SO AS TO HAVE A SURFACE AREA OF 165-215 SQUARE METERS PER GRAM.
Claim 3
Dependent Claim
22 words
A process in accordance with claim 1 wherein the caTalyst further comprises 0.01 to 5 weight percent rhenium disposed on the alumina.
Claim 4
Dependent Claim
20 words
A process in accordance with claim 1 wherein the alumina is calcined at 1,200*-1,300*F from about 1 to 24 hours.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |