US3956104A
Expired / Lapsed
US
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Hydrocracking process
Assignee: Universal Oil Products Co
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Filing: 1974-08-09
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Granted: 1976-05-11
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Expires: 1994-08-09
Abstract
Abstract A process for converting a hydrocarbon charge stock into lower boiling, normally liquid hydrocarbon products which comprises reacting said charge stock and hydrogen at hydrocracking conditions in contact with a catalyst comprising an alumina-crystalline aluminosilicate composite, a Group VIB metal component and a Group VIII metal component. The catalyst is characterized by a method of preparation.
Inventors
- 👤 Lee Hilfman
- 👤 Edward Michalko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:38
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/087; C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
204 words
A process for converting a hydrocarbon charge stock into lower boiling, normally liquid hydrocarbon products which comprises reacting said charge stock and hydrogen at hydrocracking conditions in contact with a catalytic composite of an alumina, a crystalline aluminosilicate zeolite, from about 6 to about 20 wt. % of a Group VIB metal component and from about 0.1 to about 10 wt. % of a Group VIII metal component, said catalytic composite being characterized by a method of preparation which comprises: a. admixing ammonium hydroxide and aluminum sulfate in aqueous media in a mole ratio of about 4:1 to form a soluble aluminum sulfate partial hydrolysis product in which 2 of the 3 sulfate radicals have been replaced with hydroxyl radicals; b. commingling a crystalline aluminosilicate zeolite with the partial hydrolysis product; c. thereafter effecting complete hydrolysis of said aluminum sulfate in admixture with the zeolite; d. aging the resulting mixture for a period of at least about 2 hours; e. separating and washing the solids product free of soluble matter; f. impregnating the solids product with the aforesaid amounts of said Group VIB and Group VIII metal components; and g. calcining the resulting composite at a temperature of from about 1100° to about 1700°F.
Claim 2
Dependent Claim
204 words
A process for converting a hydrocarbon charge stock into lower boiling, normally liquid hydrocarbon products which comprises reacting said charge stock and hydrogen at hydrocracking conditions in contact with a catalytic composite of an alumina, a crystalline aluminosilicate zeolite, from about 6 to about 20 wt. % of a Group VIB metal component and from about 0.1 to about 10 wt. % of a Group VIII metal component, said catalytic composite being characterized by a method of preparation which comprises: a. admixing ammonium hydroxide and aluminum sulfate in aqueous media in a mole ratio of about 4:1 to form a soluble aluminum sulfate partial hydrolysis product in which 2 of the 3 sulfate radicals have been replaced with hydroxyl radicals; b. commingling a crystalline aluminosilicate zeolite with the partial hydrolysis product; c. thereafter effecting complete hydrolysis of said aluminum sulfate in admixture with the zeolite; d. aging the resulting mixture for a period of at least about 2 hours; e. separating and washing the solids product free of soluble matter; f. impregnating the solids product with the aforesaid amounts of said Group VIB and Group VIII metal components; and g. calcining the resulting composite at a temperature of from about 1100° to about 1700°F.
Claim 3
Dependent Claim
66 words
The process of claim 1 further characterized in that said hydrocracking conditions include a temperature of from about 500° to about 1000°F., a pressure of from about 500 to about 3000 psig, a hydrocarbon charge rate of from about 0.25 to about 10 liquid hourly space velocity, and a hydrogen concentration of from about 2000 to about 15,000 standard cubic feet per barrel of hydrocarbon charge.
Claim 4
Dependent Claim
23 words
The process of claim 1 further characterized with respect to step (b) in that said crystalline aluminosilicate is a Type Y crystalline aluminosilicate.
Claim 5
Dependent Claim
25 words
The process of claim 1 further characterized with respect to step (b) in that said crystalline aluminosilicate is a rare earth-exchanged Type Y crystalline aluminosilicate.
Claim 6
Dependent Claim
37 words
The process of claim 1 further characterized with respect to step (b) in that said crystalline aluminosilicate is employed in an amount to provide from about 5 to about 95 wt. % of the final catalyst product.
Claim 7
Dependent Claim
38 words
The process of claim 1 further characterized with respect to step (d) in that said mixture is aged at a temperature of from about 85°to about 300°F. for a period of from about 2 to about 20 hours.
Claim 8
Dependent Claim
32 words
The process of claim 1 further characterized with respect to step (f) in that said Group VIB metal component is a molybdenum and said Group VIII metal component is a nickel component.
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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |