US5047139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for mid-barrel hydrocracking and process using same
Assignee: Honeywell UOP LLC
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Filing: 1989-12-20
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Granted: 1991-09-10
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Expires: 2009-12-20
Abstract
Abstract This invention pertains to a hydrocracking process for mid-distillate products and to hydrocracking catalysts having improved selectivity, activity and stability for use in the production of mid-distillate products from heavy gas oil feedstocks boiling above 700° F.
Inventors
- 👤 Frank P. Gortsema
- 👤 Regis J. Pellet
- 👤 Albert R. Springer
- 👤 Jule A. Rabo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:55
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
73 words
A hydrocracking process for the production of mid-distillate product from heavy feedstocks boiling above 700° F. comprising treating said heavy feedstock at hydrocracking reaction conditions and in the presence of a hydrocracking catalyst comprising a selectively extracted LZ-10 zeolite wherein the LZ-10 zeolite has been selectively extracted to increase its initial SiO 2 /Al 2 O 3 molar ratio of about 5.0 to a higher value within the range of 7.0 to 60.0.
Claim 2
Dependent Claim
73 words
A hydrocracking process for the production of mid-distillate product from heavy feedstocks boiling above 700° F. comprising treating said heavy feedstock at hydrocracking reaction conditions and in the presence of a hydrocracking catalyst comprising a selectively extracted LZ-10 zeolite wherein the LZ-10 zeolite has been selectively extracted to increase its initial SiO 2 /Al 2 O 3 molar ratio of about 5.0 to a higher value within the range of 7.0 to 60.0.
Claim 3
Dependent Claim
28 words
A hydrocracking process according to claim 1 wherein the selectively extracted LZ-10 zeolite has a SiO 2 /Al 2 O 3 ratio of from about 8 to 20.
Claim 4
Dependent Claim
16 words
A hydrocracking process according to claim 1 wherein the LZ-10 zeolite has been selectively acid extracted.
Claim 5
Dependent Claim
20 words
A hydrocracking process according to claim 3 wherein the LZ-10 zeolite has been selectively acid extracted utilizing a mineral acid.
Claim 6
Dependent Claim
30 words
A hydrocracking process according to claim 4 wherein the mineral acid utilized to selectively acid extract the LZ-10 zeolite is selected from the group comprising hydrochloric acid and nitric acid.
Claim 7
Dependent Claim
42 words
A hydrocracking process according to claim 1 wherein the heavy feedstock boiling above 700° F. is a high vacuum gas oil feedstock and the hydrocracking catalyst comprises the selectively extracted LZ-10 zeolite component in combination with at least one hydrogenation catalyst component.
Claim 8
Dependent Claim
20 words
A hydrocracking process according to claim 6 wherein the LZ-10 zeolite component of the hydrocracking catalyst is selectively acid extracted.
Claim 9
Dependent Claim
48 words
A hydrocracking process according to claim 7 wherein the LZ-10 zeolite component of the hydrocracking catalyst has a surface area and crystallinity exceeding that of the unextracted LZ-10 by at least 5% and the hydrogenation component is selected from the group consisting of cobalt, nickel, molybdenum and tungsten.
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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) | 1994-09-09 | 1995-03-11 | 1995-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-09 | 1999-03-11 | 1999-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-09 | 2003-03-11 | 2003-09-10 | $7700.00 | Window Closed / Lapsed |