US4045331A
Expired / Lapsed
US
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Demetallization and desulfurization of petroleum feed-stocks with manganese on alumina catalysts
Assignee: Union Oil Company of California
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Filing: 1975-10-23
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Granted: 1977-08-30
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Expires: 1995-10-23
Abstract
Abstract A novel process for the demetallization of petroleum feedstocks comprising contacting a petroleum feedstock at elevated pressures and temperatures, and preferably in the presence of hydrogen, with a catalyst comprising a manganese component composited with alumina, said catalyst having a surface area in excess of 175 m 2 /gm and having at least 60% of its pore volume in pores having diameters between 50 and 200 A. Preferred catalysts comprise between about 2 and 15 weight-percent manganese. Removal of more than 25%, usually more than 50%, of the organometallic impurities can be achieved.
Inventors
- 👤 John W. Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:00
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/60; B01J23/00; B01J23/16; B01J23/32; B01J23/34; B01J35/61; B01J35/615; B01J35/63; B01J35/633; B01J35/635; B01J35/64; B01J35/647; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
137 words
In a process for the demetallization and desulfurization of a liquid hydrocarbon feedstock wherein said feedstock is contacted with a demetallization and desulfurization catalyst at a hydrogen partial pressure between about 100 and 3000 psia and at a temperature between about 600° and 850° F and at a space velocity between about 0.1 and 10.0 L.H.S.V. to obtain therefrom a substantially demetallized product oil, the improvement which comprises utilizing as said demetallization catalyst a composition comprising one or more active manganese components composited with alumina, said catalyst composition having at least 60% of its total pore volume distributed in pores having diameters between about 50 and 200 A, having a surface area in excess of 250 m 2 /gm, and containing between about 0.1 and 30 wt.% (calculated as manganese) of said one or more manganese components.
Claim 2
Dependent Claim
137 words
In a process for the demetallization and desulfurization of a liquid hydrocarbon feedstock wherein said feedstock is contacted with a demetallization and desulfurization catalyst at a hydrogen partial pressure between about 100 and 3000 psia and at a temperature between about 600° and 850° F and at a space velocity between about 0.1 and 10.0 L.H.S.V. to obtain therefrom a substantially demetallized product oil, the improvement which comprises utilizing as said demetallization catalyst a composition comprising one or more active manganese components composited with alumina, said catalyst composition having at least 60% of its total pore volume distributed in pores having diameters between about 50 and 200 A, having a surface area in excess of 250 m 2 /gm, and containing between about 0.1 and 30 wt.% (calculated as manganese) of said one or more manganese components.
Claim 3
Dependent Claim
28 words
A process as defined in claim 1 wherein said one or more manganese components are selected from the class consisting of manganese metal, manganese oxides, and manganese sulfides.
Claim 4
Dependent Claim
21 words
A process as defined in claim 1 wherein said catalyst has a total pore volume between about 0.3 and 0.8 cc/gm.
Claim 5
Dependent Claim
40 words
A process as defined in claim 3 wherein no more than 30% of said total pore volume is distributed in pores having diameters greater than 200 A and no more than 10% in pores having diameters less than 50 A.
Claim 6
Dependent Claim
40 words
A process as defined in claim 1 wherein no more than 30% of said total pore volume is distributed in pores having diameters greater than 200 A and no more than 10% in pores having diameters less than 50 A.
Claim 7
Dependent Claim
21 words
A process as defined in claim 5 wherein said catalyst has a total pore volume between about 0.3 and 0.8 cc/gm.
Claim 8
Dependent Claim
31 words
A process as defined in claim 6 wherein at least 60% of the total pore volume of said catalyst is distributed in pores having diameters between about 60 and 100 A.
Claim 9
Dependent Claim
22 words
A process as defined in claim 1 wherein said catalyst has been calcined at a temperature between about 1100° and 1300° F.
Claim 10
Dependent Claim
28 words
A process as defined in claim 1 wherein said catalyst comprises between about 2 and 15 weight percent of said one or more manganese components (calculated as manganese).
Claim 11
Dependent Claim
31 words
A process as defined in claim 1 wherein at least 60% of the total pore volume of said catalyst is distributed in pores having diameters between about 60 and 100 A.
Claim 12
Dependent Claim
72 words
A catalyst composition consisting essentially of between about 0.1 and 30 wt.% (calculated as manganese) of one or more active manganese components selected from the class consisting of manganese metal and the oxides and sulfides thereof, supported on alumina, said catalyst composition having at least 60% of its total pore volume in pores having diameters between 50 and 200 A and having a surface area in excess of 250 m 2 /gm.
Claim 13
Dependent Claim
72 words
A catalyst composition consisting essentially of between about 0.1 and 30 wt.% (calculated as manganese) of one or more active manganese components selected from the class consisting of manganese metal and the oxides and sulfides thereof, supported on alumina, said catalyst composition having at least 60% of its total pore volume in pores having diameters between 50 and 200 A and having a surface area in excess of 250 m 2 /gm.
Claim 14
Dependent Claim
20 words
The catalyst composition of claim 11 wherein said catalyst has a total pore volume between about 0.3 and 0.8 cc/gm.
Claim 15
Dependent Claim
40 words
A catalyst as defined in claim 12 wherein no more than 30% of said total pore volume is distributed in pores having diameters greater than 200 A and no more than 10% in pores having diameters less than 50 A.
Claim 16
Dependent Claim
32 words
A catalyst composition as defined in claim 13 wherein at least 60% of the total pore volume of said catalyst is distributed in pores having diameters between about 60 and 100 A.
Claim 17
Dependent Claim
39 words
A catalyst as defined in claim 11 having no more than 30% of said total pore volume distributed in pores having diameters greater than 200 A and no more than 10% in pores having diameters less than 50 A.
Claim 18
Dependent Claim
32 words
A catalyst composition as defined in claim 11 wherein at least 60% of the total pore volume of said catalyst is distributed in pores having diameters between about 60 and 100 A.
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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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |