US4925546A
Expired / Lapsed
US
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Hydrocracking process
Assignee: BP Corp North America Inc
•
Filing: 1989-09-12
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Granted: 1990-05-15
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Expires: 2009-09-12
Abstract
Abstract The present invention relates to a hydrocracking process that utilizes a catalyst that contains a combination of two ultrastable zeolite Y components providing improved naphtha yield and catalyst activity.
Inventors
- 👤 Simon G. Kukes
- 👤 Christopher L. Marshall
- 👤 P. Donald Hopkins
- 👤 Albert L. Hensley, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:45
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G47/20; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084; B01J29/16; B01J29/166; B01J29/80; B01J2229/00; B01J2229/10; B01J2229/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
164 words
A process for the hydrocracking of a hydrocarbon feedstock which comprises reacting the feedstock with hydrogen at hydrocracking conversion conditions in the presence of a catalyst comprising a hydrogenation component comprising a Group VIB metal component and a Group VIII metal component and a support component comprising a refractory inorganic oxide component and a crystalline molecular sieve component wherein the crystalline molecular sieve component consists essentially of a first ultrastable zeolite Y wherein the framework silica to alumina molar ratio varies from about 5 to about 8 and the unit cell size varies from about 24.667 to about 24.524 Angstroms and a second more dealuminated ultrastable zeolite Y wherein the framework silica to alumina molar ratio varies from about 8 to about 20 and the unit cell size varies from about 24.524 to about 24.343 Angstroms, wherein the amount of said first zeolite Y varies from about 40 to about 80 wt. % based on the total amount of said crystalline molecular sieve component.
Claim 2
Dependent Claim
164 words
A process for the hydrocracking of a hydrocarbon feedstock which comprises reacting the feedstock with hydrogen at hydrocracking conversion conditions in the presence of a catalyst comprising a hydrogenation component comprising a Group VIB metal component and a Group VIII metal component and a support component comprising a refractory inorganic oxide component and a crystalline molecular sieve component wherein the crystalline molecular sieve component consists essentially of a first ultrastable zeolite Y wherein the framework silica to alumina molar ratio varies from about 5 to about 8 and the unit cell size varies from about 24.667 to about 24.524 Angstroms and a second more dealuminated ultrastable zeolite Y wherein the framework silica to alumina molar ratio varies from about 8 to about 20 and the unit cell size varies from about 24.524 to about 24.343 Angstroms, wherein the amount of said first zeolite Y varies from about 40 to about 80 wt. % based on the total amount of said crystalline molecular sieve component.
Claim 3
Dependent Claim
35 words
The process of claim 1 wherein the amount of said first ultrastable zeolite Y varies from about 50 to about 75 wt. % based on the total weight of said molecular sieve molecular sieve component.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein the amount of said first ultrastable zeolite Y varies from about 60 to about 70 wt. % based on the total weight of said molecular sieve component.
Claim 5
Dependent Claim
17 words
The process of claim 1 wherein said hydrogenation component comprises a nickel component and a tungsten component.
Claim 6
Dependent Claim
17 words
The process of claim 1 wherein said hydrogenation component comprises a cobalt component and a molybdenum component.
Claim 7
Dependent Claim
21 words
The process of claim 1 wherein said refractory inorganic oxide is selected from the group consisting of silica, alumina, and silica-alumina.
Claim 8
Dependent Claim
12 words
The process of claim 6 wherein said refractory inorganic oxide is alumina.
Claim 9
Dependent Claim
40 words
The process of claim 1 wherein said second more dealuminated ultrastable zeolite Y possesses a framework silica to alumina ratio of about 15 to about 20 and wherein the unit cell size varies from about 24.387 to about 24.343 Angstroms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-14 | 1993-11-13 | 1994-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-14 | 1997-11-13 | 1998-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-14 | 2001-11-13 | 2002-05-15 | $7700.00 | Window Closed / Lapsed |