US4661239A
Expired / Lapsed
US
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Middle distillate producing hydrocracking process
Assignee: Honeywell UOP LLC
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Filing: 1986-07-07
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Granted: 1987-04-28
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Expires: 2006-07-07
Abstract
Abstract A process for the production of a middle distillate fraction comprising contacting a hydrocarbon feedstock at middle distillate production conditions with a catalyst composition comprising a first modified Y zeolite component and a second modified Y zeolite component in admixture with a refractory inorganic oxide matrix and hydrogenation metals. The first and second modified Y zeolites have an average unit cell size within the range of about 24.20 to 24.85 A and have a difference between their respective average unit cell sizes of at least 0.1 A.
Inventors
- 👤 Karl Z. Steigleder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:29
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/80; B01J29/08; B01J29/084; B01J29/10; B01J29/14; B01J29/146; C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/36; B01J2229/42
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
In a process for hydrocracking a hydrocarbon feedstock to middle distillate fractions boiling in the range of about 300° F. to 700° F. comprising contacting said feedstock at hydrocracking conditions with a catalyst composition comprising a mixture of a first hydrothermally treated Y zeolite component and a second hydrothermally treated Y zeolite component in intimate admixture with a refractory inorganic oxide matrix wherein the unit cell size of the first and second Y zeolite components ranges from about 24.20 to 24.35 Angstroms and the difference between the unit cell size of the first and second Y zeolite components is at least 0.1 Angstrom.
Claim 2
Dependent Claim
103 words
In a process for hydrocracking a hydrocarbon feedstock to middle distillate fractions boiling in the range of about 300° F. to 700° F. comprising contacting said feedstock at hydrocracking conditions with a catalyst composition comprising a mixture of a first hydrothermally treated Y zeolite component and a second hydrothermally treated Y zeolite component in intimate admixture with a refractory inorganic oxide matrix wherein the unit cell size of the first and second Y zeolite components ranges from about 24.20 to 24.35 Angstroms and the difference between the unit cell size of the first and second Y zeolite components is at least 0.1 Angstrom.
Claim 3
Dependent Claim
50 words
The process of claim 1 wherein said hydrocracking conditions comprise a temperature in the range of about 200° F. to 1500° F., a pressure in the range of atmospheric to about 3000 psig and a liquid hourly space velocity in the range of about 0.1 to 15 hr -1 .
Claim 4
Dependent Claim
29 words
The process of claim 1 wherein said composition comprises a refractory inorganic oxide matrix selected from the group consisting of alumina, magnesia, silica, titania, zirconia silica-alumina and mixtures thereof.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein said refractory inorganic oxide matrix comprises alumina.
Claim 6
Dependent Claim
13 words
The process of claim 1 wherein said refractory inorganic oxide matrix comprises silica-alumina.
Claim 7
Dependent Claim
21 words
The process of claim 1 wherein said composition comprises a refractory inorganic oxide matrix comprising an admixture of silica-alumina and alumina.
Claim 8
Dependent Claim
17 words
The process of claim 6 wherein said catalyst composition comprises between 1 and 75 wt. % silica.
Claim 9
Dependent Claim
17 words
The process of claim 6 wherein said catalyst composition comprises between 5 and 95 wt. % silica-alumina.
Claim 10
Dependent Claim
34 words
The process of claim 1 wherein said catalyst composition comprises a weight ratio of said first hydrothermally Y zeolite to said second hydrothermally Y zeolite in the range of from about 0.1:1 to 10:1.
Claim 11
Dependent Claim
21 words
The process of claim 16 wherein said first hydrothermally treated Y zeolite has a unit cell size of about 24.25 A.
Claim 12
Dependent Claim
21 words
The process of claim 16 wherein said second hydrothermally treated Y zeolite has a unit cell size of about 24.35 A.
Claim 13
Dependent Claim
24 words
The process of claim 16 wherein said first hydrothermally treated Y zeolite is present in an amount of about 1.0 to 20.0 wt. %.
Claim 14
Dependent Claim
24 words
The process of claim 16 wherein said second hydrothermally treated Y zeolite is present in an amount of about 1.0 to 20.0 wt. %.
Claim 15
Dependent Claim
24 words
The process of claim 16 wherein said catalyst composition contains hydrogenation metals selected from the group consisting of Group VIB and Group VIII metals.
Claim 16
Dependent Claim
15 words
The process of claim 14 wherein said catalyst composition contains nickel, tungsten, or combinations thereof.
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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) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |