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US4513090A
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Crystalline silica zeolite-containing catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1981-07-09
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Granted: 1985-04-23
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Expires: 2001-07-09
Abstract
Abstract A catalyst is provided which comprises a crystalline silica zeolite, a hydrogenation component and a support. The catalyst may be a physical mixture of the zeolite and the supported hydrogenation component or a composite catalyst. Hydrocarbon hydroprocessing processes such as hydroconversion and hydrodesulfurization utilizing the catalyst are also provided. The catalyst is particularly suited for the simultaneous pour point reduction and hydrodesulfurization of hydrocarbonaceous oils.
Inventors
- 👤 Paul E. Eberly, Jr.
- 👤 William E. Winter, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:59
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/03; B01J29/035; B01J29/04; C; C10; C10G; C10G45/00; C10G45/58; C10G45/60; C10G45/64; C10G49/00; C10G49/02; C10G49/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
47 words
A catalyst comprising a physical mixture of particles of (a) a crystalline silica zeolite having uniform pore diameters, and (b) a hydrogenation component composited with a non-zeolitic alumina-containing support comprising from about 1 to about 6 weight percent amorphous silica, based on the weight of said support.
Claim 2
Dependent Claim
47 words
A catalyst comprising a physical mixture of particles of (a) a crystalline silica zeolite having uniform pore diameters, and (b) a hydrogenation component composited with a non-zeolitic alumina-containing support comprising from about 1 to about 6 weight percent amorphous silica, based on the weight of said support.
Claim 3
Dependent Claim
27 words
The catalyst of claim 1 wherein said hydrogenation component is selected from the group consisting of Group VIB metal components, Group VIII metal components and mixtures thereof.
Claim 4
Dependent Claim
32 words
The catalyst of claim 1 wherein said hydrogenation component comprises a noble metal component of Group VIII selected from the group consisting of palladium, platinum, ruthenium, rhodium, osmium, iridium and mixtures thereof.
Claim 5
Dependent Claim
27 words
The catalyst of claim 1 wherein said hydrogenation component comprises a non-noble metal component of Group VIII selected from the group consisting of iron, cobalt and nickel.
Claim 6
Dependent Claim
39 words
The catalyst of claim 1 wherein said hydrogenation component is selected from the group consisting of nickel, nickel oxide, nickel sulfide, molybdenum, molybdenum oxide, molybdenum sulfide, cobalt, cobalt oxide, cobalt sulfide, tungsten, tungsten oxide, tungsten sulfide and mixtures thereof.
Claim 7
Dependent Claim
26 words
The catalyst of claim 1 wherein said catalyst comprises from about 0.1 to about 80 weight percent of said silica zeolite, based on the total catalyst.
Claim 8
Dependent Claim
18 words
The catalyst of claim 1 wherein said silica zeolite has uniform pore diameters of above about 5 angstroms.
Claim 9
Dependent Claim
40 words
The catalyst of claim 1 wherein said silica zeolite has uniform pore diameters of about 6 angstroms, a mean refractive index, after calcination in air at 600° C. of 1.39±0.01 and a specific gravity at 25° C. of 1.70±0.05 g/cc.
Claim 10
Dependent Claim
12 words
The catalyst of claim 1 wherein said crystalline silica zeolite is silicalite.
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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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |