US3617527A
Expired / Lapsed
US
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Desulfurization process and catalyst
Assignee: Universal Oil Products Co
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Filing: 1969-10-16
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Granted: 1971-11-02
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Expires: 1989-10-16
Abstract
Abstract A desulfurization catalyst of an alumina-containing carrier material, a nickel component and a tin component. Nickel constitutes from 1.0 percent to about 10.0 percent by weight of the composite and tin from about 0.7 percent to 7.0 percent, and preferred catalysts also contain from 4.0 percent to about 30.0 percent by weight of a Group VI-B metal component. The catalyst is prepared in a manner which inhibits the formation of nickel aluminate.
Inventors
- 👤 Lee Hilfman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:37
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/835; B01J23/84; B01J23/85; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; B01J23/88; B01J23/887; B01J23/8875
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
57 words
The process of claim 1 further characterized in that said desulfurization conditions include a pressure of about 400 to about 5,000 p.s.i.g., a maximum catalyst bed temperature of about 200* F. to about 900* F., a liquid hourly space velocity of about 0.1 to about 10.0 and a hydrogen concentration of about 1,000 to about 50,000 s.c.f./bbl.
Claim 2
Dependent Claim
119 words
A desulfurization catalyst comprising coextruded particles of an inorganic oxide carrier material selected from the group consisting of alumina and alumina-silica, from 4.0 percent to about 30.0 percent by weight of a Group VI-B metal component, from about 1.0 percent to about 10.0 percent by weight of nickel, and about 0.7 percent to about 7.0 percent by weight of tin, and containing less than about 0.1 percent by weight of nickel aluminate, said catalyst having been prepared by mixing a preformed inorganic oxide carrier material as specified above with Group VI-B metal, nickel and tin components, extruding the resulting mixture, drying and calcining the resulting extrudate, said tin functioning to minimize formation of nickel aluminate during the calcination step.
Claim 3
Dependent Claim
21 words
The catalyst of claim 3 further characterized in that said Group VI-B metal component is molybdenum, or a compound of molybdenum.
Claim 4
Dependent Claim
21 words
The catalyst of claim 3 further characterized in that said Group VI-B metal component is tungsten, or a compound of tungsten.
Claim 5
Dependent Claim
17 words
The catalyst of claim 1 further characterized in that said carrier material further includes a crystalline alumino-silicate.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |