US4186080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of catalyst comprising titania and zirconia in hydrotreating
Assignee: Mobil Oil AS
•
Filing: 1978-04-14
•
Granted: 1980-01-29
•
Expires: 1998-04-14
Abstract
Abstract The invention provides a titania-zirconia or a titania-zirconia-alumina catalyst base containing a system of metals, metal oxides or metal sulfides from Groups VIB, VIIB and VIII of the Periodic Table. Such catalyst are useful in the hydrodesulfurization and denitrogenation of hydrocarbon feed stocks and the saturation of aromatics contained therein.
Inventors
- 👤 Richard J. Mikovsky
- 👤 Anthony J. Silvestri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:37
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/06; B01J21/066; B01J21/063; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; C10G45/44; C10G45/46; C10G45/48; C10G45/50
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
93 words
A process for hydrotreating a petroleum fraction comprising contacting said petroleum fraction under hydrotreating conditions with a catalyst composition to remove nitrogen and sulfur and to saturate aromatics in said fraction, the catalyst base of which consists essentially of co-precipitated titania and zirconia, wherein the titania-zirconia co-precipitate contains from about 20% to about 80% by weight of titania and from about 80% to about 20% by weight of zirconia, the said base having associated therewith a mixture of (1) cobalt metal, cobalt oxide or cobalt sulfide and (2) molybdenum oxide or molybdenum sulfide.
Claim 2
Dependent Claim
93 words
A process for hydrotreating a petroleum fraction comprising contacting said petroleum fraction under hydrotreating conditions with a catalyst composition to remove nitrogen and sulfur and to saturate aromatics in said fraction, the catalyst base of which consists essentially of co-precipitated titania and zirconia, wherein the titania-zirconia co-precipitate contains from about 20% to about 80% by weight of titania and from about 80% to about 20% by weight of zirconia, the said base having associated therewith a mixture of (1) cobalt metal, cobalt oxide or cobalt sulfide and (2) molybdenum oxide or molybdenum sulfide.
Claim 3
Dependent Claim
38 words
The process of claim 1 wherein cobaltia and molybdena are present in the range of from about 1% to about 10% and from about 2% to about 20%, respectively, both as a weight percent of the finished catalyst.
Claim 4
Dependent Claim
21 words
The process of claim 2 wherein cobaltia and molybdena are present to the extent of 3% and 10% by weight respectively.
Claim 5
Dependent Claim
21 words
The process of claim 1 wherein the ratio of ZrO 2 to TiO 2 is from about 0.5 to about 2.0.
Claim 6
Dependent Claim
17 words
The process of claim 4 wherein titania and zirconia are present in the co-precipitate in equimolar amounts.
Claim 7
Dependent Claim
25 words
The process of claim 1 wherein the surface area of the co-precipitate is from about 100 m 2 /g to about 250 m 2 /g.
Claim 8
Dependent Claim
43 words
The process of claim 1 wherein the hydrotreating conditions employed comprise a temperature ranging from about 300° F. to about 1200° F., a hydrogen pressure of from about 250 to about 2500 psig and a space velocity of from 0.25 to about 10.
Claim 9
Dependent Claim
104 words
A process for hydrotreating a petroleum fraction comprising contacting said petroleum fraction under hydrotreating conditions with a catalyst composition to remove nitrogen and sulfur and to saturate aromatics in said fraction, the catalyst base of which consists essentially of from about 10% to about 50% by weight of alumina, from about 15% to about 45% by weight of titania and from about 25% to about 65% by weight of zirconia, the said base having associated therewith constituents selected from the group consisting of (a) Group VIB metal oxides or metal sulfides, (b) Group VIII metals, metal oxides or metal sulfides and (c) mixtures thereof.
Claim 10
Dependent Claim
104 words
A process for hydrotreating a petroleum fraction comprising contacting said petroleum fraction under hydrotreating conditions with a catalyst composition to remove nitrogen and sulfur and to saturate aromatics in said fraction, the catalyst base of which consists essentially of from about 10% to about 50% by weight of alumina, from about 15% to about 45% by weight of titania and from about 25% to about 65% by weight of zirconia, the said base having associated therewith constituents selected from the group consisting of (a) Group VIB metal oxides or metal sulfides, (b) Group VIII metals, metal oxides or metal sulfides and (c) mixtures thereof.
Claim 11
Dependent Claim
19 words
The process of claim 8 wherein the said multicomponent system is a two-component system consisting of cobaltia and molybdena.
Claim 12
Dependent Claim
38 words
The process of claim 9 wherein cobaltia and molybdena are present in the range of from about 2% to about 10% and from about 5% to about 20%, respectively, both as a weight percent of the finished product.
Claim 13
Dependent Claim
20 words
The process of claim 8 wherein the weight percent alumina in the alumina-zirconia-titania composite is from about 10 to 50.
Claim 14
Dependent Claim
46 words
The process of claim 8 wherein the hydrotreating conditions employed comprise a temperature ranging from about 300° F. to about 1200° F., a hydrogen pressure of from above about 100 psig to about 2500 psig and a space velocity of from about 0.25 to about 10.
References Cited (Backward Citations)
US3288704A
Cited
US3269958A
Cited
US3278421A
Cited
US3331769A
Cited
US3340183A
Cited
US3544450A
Cited
US4080286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |