US4575416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodewaxing with mixed zeolite catalysts
Assignee: Mobil Oil AS
•
Filing: 1984-07-16
•
Granted: 1986-03-11
•
Expires: 2004-07-16
Abstract
Abstract A catalytic dewaxing process is improved by the use of a mixed zeolite catalyst which combines the following components: a first zeolitic catalyst having a Constraint Index not less than 1, a second, different, catalytic component of specified characteristics, and a hydrogenation component. This process for preparing the catalyst is also disclosed. Examples of specific combinations of dewaxing catalysts include ZSM-5 and Dealuminized Y, ZSM-5 and ZSM-12, and ZSM-5 and TEA Mordenite.
Inventors
- 👤 Arthur W. Chester
- 👤 William D. McHale
- 👤 Jeffrey H. Yen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:22
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/80; C; C10; C10G; C10G45/00; C10G45/58; C10G45/60; C10G45/64; B01J29/08; B01J29/084; B01J29/40
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
74 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock comprising contacting said feedstock with a dewaxing catalyst, said dewaxing catalyst comprising, in combination: (a) a zeolite catalyst having a Constraint Index not less than 1, (b) an acidic catalytic material selected from the group consisting of Mordenite, TEA Mordenite, Dealuminized Y, Ultrastable Y, Rare Earth Y, amorphous silica-alumina, chlorinated alumina, ZSM-4 and ZSM-20, and (c) a hydrogenation component, and recovering a dewaxed product.
Claim 2
Dependent Claim
74 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock comprising contacting said feedstock with a dewaxing catalyst, said dewaxing catalyst comprising, in combination: (a) a zeolite catalyst having a Constraint Index not less than 1, (b) an acidic catalytic material selected from the group consisting of Mordenite, TEA Mordenite, Dealuminized Y, Ultrastable Y, Rare Earth Y, amorphous silica-alumina, chlorinated alumina, ZSM-4 and ZSM-20, and (c) a hydrogenation component, and recovering a dewaxed product.
Claim 3
Dependent Claim
32 words
The process according to claim 1, wherein said zeolite from group (a) is selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, ZSM-34, ZSM-35, ZSM-38, ZSM-48, TMA Offretite and Erionite.
Claim 4
Dependent Claim
20 words
The process according to claim 1, wherein said zeolite from group (a) has a Constraint Index from 1 to 12.
Claim 5
Dependent Claim
16 words
The process according to claim 3, wherein said acidic material from group (b) is TEA Mordenite.
Claim 6
Dependent Claim
16 words
The process according to claim 3, wherein said acidic material from group (b) is Dealuminized Y.
Claim 7
Dependent Claim
29 words
The process according to claim 1, wherein said hydrogenation component is a metal selected from any of Groups VI, VII and VIII of the Periodic Table and mixtures thereof.
Claim 8
Dependent Claim
14 words
The process according to claim 1, wherein said hydrogenation component is a noble metal.
Claim 9
Dependent Claim
20 words
The process according to claim 7, wherein said noble metal is selected from the group consisting of platinum and palladium.
Claim 10
Dependent Claim
32 words
The process according to claim 1, wherein said dewaxing catalyst further comprises a binder, said binder being selected from the group consisting of alpha-alumina monohydrate, silica, silica-alumina, naturally-occurring clays and mixtures thereof.
Claim 11
Dependent Claim
41 words
The process according to claim 1, wherein said zeolite from group (a) is present in an amount from 5 to 60 wt. % and said acidic material from group (b) is present in an amount from 5 to 60 wt. %.
Claim 12
Dependent Claim
44 words
The process according to claim 10, wherein said zeolite from group (a) is present in an amount of 32.5 wt. %, said acidic material from group (b) in an amount of 32.5 wt. %, and said binder in an amount of 35 wt. %.
Claim 13
Dependent Claim
84 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock comprising contacting said feedstock with a dewaxing catalyst, said dewaxing catalyst comprising, in combination: (a) a first zeolite catalyst selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, ZSM-34, ZSM-35, ZSM-38, ZSM-48, TMA Offretite and Erionite, (b) a second catalyst selected from the group consisting of ZSM-12, ZSM-22, ZSM-38 and ZSM-48, said second zeolite catalyst being different from said first zeolite catalyst, and (c) a hydrogenation component, and recovering a dewaxed product.
Claim 14
Dependent Claim
84 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock comprising contacting said feedstock with a dewaxing catalyst, said dewaxing catalyst comprising, in combination: (a) a first zeolite catalyst selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, ZSM-34, ZSM-35, ZSM-38, ZSM-48, TMA Offretite and Erionite, (b) a second catalyst selected from the group consisting of ZSM-12, ZSM-22, ZSM-38 and ZSM-48, said second zeolite catalyst being different from said first zeolite catalyst, and (c) a hydrogenation component, and recovering a dewaxed product.
Claim 15
Dependent Claim
15 words
The process according to claim 12, wherein said zeolite catalyst from group (a) is ZSM-5.
Claim 16
Dependent Claim
15 words
The process according to claim 13, wherein the zeolite catalyst from group (b) is ZSM-12.
Claim 17
Dependent Claim
29 words
The process according to claim 12, wherein said hydrogenation component is a metal selected from any of Groups VI, VII and VIII of the Periodic Table and mixtures thereof.
Claim 18
Dependent Claim
14 words
The process according to claim 12, wherein said hydrogenation component is a noble metal.
Claim 19
Dependent Claim
20 words
The process according to claim 16, wherein said noble metal is selected from the group consisting of platinum and palladium.
Claim 20
Dependent Claim
32 words
The process according to claim 12, wherein said dewaxing catalyst further comprises a binder, said binder being selected from the group consisting of alpha-alumina monohydrate, silica, silica-alumina, naturally-occurring clays and mixtures thereof.
Claim 21
Dependent Claim
42 words
The process according to claim 12, wherein said zeolite catalyst from group (a) is present in an amount from 5 to 60 wt. % and said zeolite catalyst from group (b) is present in an amount from 5 to 60 wt. %.
Claim 22
Dependent Claim
45 words
The process according to claim 18, wherein said zeolite catalyst from group (a) is present in an amount of 32.5 wt. %, said zeolite catalyst from group (b) in an amount of 32.5 wt. %, and said binder in an amount of 35 wt. %.
Claim 23
Dependent Claim
24 words
The process according to claim 12, wherein said feedstock is contacted with said catalyst at a temperature between about 450° and about 750° F.
Claim 24
Dependent Claim
130 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock, said process comprising contacting said feedstock at a temperature between about 450° F. and about 750° F. and a pressure between about 100 and 1500 psig with a catalyst in the pressure of hydrogen in which the hydrogen-to-feedstock ratio is between about 800 and 4000 standard cubic feet of hydrogen per barrel of feed, said catalyst comprising about 5 to 60 wt % ZSM-5, about 5 to 60 wt % ZSM-12, about 0 to about 50 wt % alpha-alumina monohydrate binder, and about 0.1 to 2 wt % finely dispersed platinum, wherein said feedstock is contacted with said catalyst in a fixed reactor bed at a liquid hourly space velocity between about 0.5 and 4, and recovering a dewaxed product.
Claim 25
Dependent Claim
130 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock, said process comprising contacting said feedstock at a temperature between about 450° F. and about 750° F. and a pressure between about 100 and 1500 psig with a catalyst in the pressure of hydrogen in which the hydrogen-to-feedstock ratio is between about 800 and 4000 standard cubic feet of hydrogen per barrel of feed, said catalyst comprising about 5 to 60 wt % ZSM-5, about 5 to 60 wt % ZSM-12, about 0 to about 50 wt % alpha-alumina monohydrate binder, and about 0.1 to 2 wt % finely dispersed platinum, wherein said feedstock is contacted with said catalyst in a fixed reactor bed at a liquid hourly space velocity between about 0.5 and 4, and recovering a dewaxed product.
Claim 26
Dependent Claim
132 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock, said process comprising contacting said feedstock at a temperature between about 450° F. and about 750° F. and a pressure between about 100 and 1500 psig with a catalyst in the presence of hydrogen in which the hydrogen-to-feedstock ratio is between about 800 and 4000 standard cubic feet of hydrogen per barrel of feed, said catalyst comprising about 5 to 60 wt % ZSM-5, about 5 to 60 wt % of TEA Mordenite, about 0 to about 50 wt % alpha-alumina monohydrate binder, and about 0.1 to 2 wt % finely dispersed platinum, wherein said feedstock is contacted with said catalyst in a fixed reactor bed at a liquid hourly space velocity between about 0.5 and 4, and recovering a dewaxed product.
Claim 27
Dependent Claim
132 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock, said process comprising contacting said feedstock at a temperature between about 450° F. and about 750° F. and a pressure between about 100 and 1500 psig with a catalyst in the presence of hydrogen in which the hydrogen-to-feedstock ratio is between about 800 and 4000 standard cubic feet of hydrogen per barrel of feed, said catalyst comprising about 5 to 60 wt % ZSM-5, about 5 to 60 wt % of TEA Mordenite, about 0 to about 50 wt % alpha-alumina monohydrate binder, and about 0.1 to 2 wt % finely dispersed platinum, wherein said feedstock is contacted with said catalyst in a fixed reactor bed at a liquid hourly space velocity between about 0.5 and 4, and recovering a dewaxed product.
Claim 28
Dependent Claim
132 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock, said process comprising contacting said feedstock at a temperature between about 450° F. and about 750° F. and a pressure between about 100 and 1500 psig with a catalyst in the presence of hydrogen in which the hydrogen-to-feedstock ratio is between about 800 and 4000 standard cubic feet of hydrogen per barrel of feed, said catalyst comprising about 5 to 60 wt % ZSM-5, about 5 to 60 wt % of Dealuminized Y, about 0 to about 50 wt % alpha-alumina monohydrate binder, and about 0.1 to 2 wt % finely dispersed platinum, wherein said feedstock is contacted with said catalyst in a fixed reactor bed at a liquid hourly space velocity between about 0.5 and 4, and recovering a dewaxed product.
Claim 29
Dependent Claim
132 words
A process for catalytically dewaxing a hydrocarbon lubricating oil feedstock, said process comprising contacting said feedstock at a temperature between about 450° F. and about 750° F. and a pressure between about 100 and 1500 psig with a catalyst in the presence of hydrogen in which the hydrogen-to-feedstock ratio is between about 800 and 4000 standard cubic feet of hydrogen per barrel of feed, said catalyst comprising about 5 to 60 wt % ZSM-5, about 5 to 60 wt % of Dealuminized Y, about 0 to about 50 wt % alpha-alumina monohydrate binder, and about 0.1 to 2 wt % finely dispersed platinum, wherein said feedstock is contacted with said catalyst in a fixed reactor bed at a liquid hourly space velocity between about 0.5 and 4, and recovering a dewaxed product.
References Cited (Backward Citations)
US28398A
Cited
USRE28398E
Cited
US3686121A
Cited
US3758403A
Cited
US3755145A
Cited
US3968024A
Cited
US4229282A
Cited
US4289606A
Cited
US4368114A
Cited
US4372839A
Cited
US4376036A
Cited
US4419220A
Cited
US4428819A
Cited
EP0101177A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |