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US4062809A
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Catalyst for production of middle distillate oils
Assignee: Union Oil Company of California
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Filing: 1976-03-18
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Granted: 1977-12-13
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Expires: 1996-03-18
Abstract
Abstract Heavy mineral oil fractions are selectively hydrocracked to produce mainly middle distillate oils boiling in the 300°-700° F range. Certain novel, highly active and selective catalysts are utilized comprising molybdenum and/or tungsten plus nickel and/or cobalt supported upon certain heterogeneous composites of a silica-alumina cogel or copolymer dispersed in a matrix consisting essentially of alumina gel.
Inventors
- 👤 John W. Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:35
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A hydrocracking catalyst composition comprising a molybdenum and/or tungsten first component plus a nickel and/or cobalt second component supported on a heterogeneous support comprising 10-50 weight-percent of a cracking component consisting essentially of a finely divided silica-alumina cogel or copolymer containing about 50-90 weight-percent of SiO 2 , said cracking component being dispersed in a matrix consisting essentially of alumina.
Claim 2
Dependent Claim
60 words
A hydrocracking catalyst composition comprising a molybdenum and/or tungsten first component plus a nickel and/or cobalt second component supported on a heterogeneous support comprising 10-50 weight-percent of a cracking component consisting essentially of a finely divided silica-alumina cogel or copolymer containing about 50-90 weight-percent of SiO 2 , said cracking component being dispersed in a matrix consisting essentially of alumina.
Claim 3
Dependent Claim
31 words
A catalyst as defined in claim 1 wherein said first component is tungsten, or an oxide or sulfide thereof, and said second component is nickel or an oxide or sulfide thereof.
Claim 4
Dependent Claim
19 words
A catalyst as defined in claim 1 wherein said heterogeneous support has a pore volume of about 0.8-2.0 ml/g.
Claim 5
Dependent Claim
23 words
A catalyst as defined in claim 3 wherein about 25-70% of said pore volume is in pores of greater than 100 A diameter.
Claim 6
Dependent Claim
22 words
A catalyst as defined in claim 4 wherein about 20-50% of said pore volume is in pores of greater than 500 A.
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) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |