US5198100A
Expired / Lapsed
US
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Hydrotreating using novel hydrotreating catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1990-12-24
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Granted: 1993-03-30
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Expires: 2010-12-24
Abstract
Abstract A hydrotreating process using a sulfided catalyst composition comprised of at least one Group VIII metal and at least one Group VI metal on an inorganic oxide support, which sulfided catalyst is derived from a catalyst precursor comprised of salts and/or complexes of a Group VIII metal(s) with a Group VI metal heteropolyacid on an inorganic oxide support material, wherein the concentration of Group VIII metal ranges from about 2 to 20 wt. %, and the concentration of Group VI metal ranges from 5 to 50 wt. %, which percents are on support and which catalyst composition is substantially free of free water.
Inventors
- 👤 Clyde L. Aldridge
- 👤 Kenneth L. Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:35
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J27/00; B01J27/14; B01J27/186; B01J27/188; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
A process for removing heteroatoms from a hydrocarbonaceous feedstock which process comprises treating the feedstock at hydrotreating conditions including a temperature in the range of about 75° C. to about 450° C. at a pressure from about 10 to 2500 psig, and in the presence of hydrogen, with a non-calcined sulfided catalyst composition comprised of a salt or a complex of: (a) a salt of one or more Group VIII metals selected from the group consisting of Fe, Ni, and Co; and (b) a Group VI heteropolyacid composition selected from the group consisting of phosphomolybdic acid, phosphotungstic acid, silicomolybdic acid, and silicotungstic acid, wherein the Group VIII is incorporated into the catalyst composition as a metal salt of an acid which has an acidity less than that of the Group VI heteropolyacid; and an inorganic oxide support material, wherein the concentration of Group VIII metal ranges from about 4 to 12 wt. %, and the concentration of Group VI metal ranges from about 10 to 40 wt. %, which percents are on support, and which catalyst is substantially free of free water.
Claim 2
Dependent Claim
182 words
A process for removing heteroatoms from a hydrocarbonaceous feedstock which process comprises treating the feedstock at hydrotreating conditions including a temperature in the range of about 75° C. to about 450° C. at a pressure from about 10 to 2500 psig, and in the presence of hydrogen, with a non-calcined sulfided catalyst composition comprised of a salt or a complex of: (a) a salt of one or more Group VIII metals selected from the group consisting of Fe, Ni, and Co; and (b) a Group VI heteropolyacid composition selected from the group consisting of phosphomolybdic acid, phosphotungstic acid, silicomolybdic acid, and silicotungstic acid, wherein the Group VIII is incorporated into the catalyst composition as a metal salt of an acid which has an acidity less than that of the Group VI heteropolyacid; and an inorganic oxide support material, wherein the concentration of Group VIII metal ranges from about 4 to 12 wt. %, and the concentration of Group VI metal ranges from about 10 to 40 wt. %, which percents are on support, and which catalyst is substantially free of free water.
Claim 3
Dependent Claim
31 words
The process of claim 1 wherein the surface of the support, prior to introduction of the metals, is modified with from about 1 to 25 wt. % of a silica source.
Claim 4
Dependent Claim
19 words
The process of claim 2 wherein the surface of the support is modified with tetraethylorthosilicate as the silica source.
Claim 5
Dependent Claim
20 words
The process of claim 3 wherein the Group VIII metal is selected from Co and Ni and a mixture thereof.
Claim 6
Dependent Claim
20 words
The process of claim 1 wherein the Group VIII metal is selected from Co and Ni and a mixture thereof.
Claim 7
Dependent Claim
17 words
The process of claim 5 wherein the inorganic oxide support is selected from alumina, silica, and alumina-silica.
Claim 8
Dependent Claim
17 words
The process of claim 1 wherein the inorganic oxide support is selected from alumina, silica, and alumina-silica.
Claim 9
Dependent Claim
26 words
The process of claim 1 wherein the Group VIII metal salt is a salt of a conjugate acid selected from acetates, formates, citrates, hydroxides, and carbonates.
Claim 10
Dependent Claim
22 words
The process of claim 8 wherein the support is modified with from about 1 to 25 wt. % of a silica source.
Claim 11
Dependent Claim
52 words
The process of claim 9 wherein the source if silica is tetraethylorthosilicate; the amount of Group VIII metal ranges from about 4 to 12 wt. %; the amount of Group VI metal ranges from about 10 to 40 wt. %; and the inorganic oxide support is selected from alumina, silica, and alumina-silica.
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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) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |