Patent US3900427A successfully refreshed from Google Patents.
US3900427A
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Hydroprocessing catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1973-06-04
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Granted: 1975-08-19
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Expires: 1993-06-04
Abstract
Abstract A hydroprocessing catalyst having preferred surface area and pore volume ranges located in pores having diameters ranging from 30-80A and greater than 2000A. Pore volume in the 200-2000A diameter range is kept to a minimum. The catalyst is a mixture of Group VIB and Group VIII metal oxides or sulfides on an alumina support. The catalyst shows exceptional activity maintenance in hydrodesulfurization of heavy hydrocarbon feed stocks containing asphaltenes.
Inventors
- 👤 Kenneth L Riley
- 👤 Willard H Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:20
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; B01J21/00; B01J21/02; B01J21/04; B01J35/00; B01J35/60; C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; B01J35/61; B01J35/615; B01J35/63; B01J35/633; B01J35/635; B01J35/66; B01J35/69
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
64 words
A HYDROPROCESSING CATALYST COMPRISING A HYDROGENATION COMPONENT ON AN ALUMINA SUPPORT HAVING A MAJOR PORTION OF ITS SURFACE AREA IN PORES RANGING FROM 30-80A IN DIAMETER, WITH LESS THAN FOUR PERCENT OF THE TOTAL PORE VOLUME BEING IN PORES RANGING FROM 200 TO 2000A IN DIAMTEER, AND AT LEAST THREE PERCENT OF THE TOTAL PORE VOLUME BEING IN PORES GREATER THAN 2000A IN DIAMETER.
Claim 2
Dependent Claim
64 words
A HYDROPROCESSING CATALYST COMPRISING A HYDROGENATION COMPONENT ON AN ALUMINA SUPPORT HAVING A MAJOR PORTION OF ITS SURFACE AREA IN PORES RANGING FROM 30-80A IN DIAMETER, WITH LESS THAN FOUR PERCENT OF THE TOTAL PORE VOLUME BEING IN PORES RANGING FROM 200 TO 2000A IN DIAMTEER, AND AT LEAST THREE PERCENT OF THE TOTAL PORE VOLUME BEING IN PORES GREATER THAN 2000A IN DIAMETER.
Claim 3
Dependent Claim
70 words
A hydroprocessing catalyst comprising a hydrogenation component impregnated on a silica-stabilized alumina support having more than 50 percent of its surface area in pores ranging from 30-80A in diameter, with less than 4 percent of the total pore volume being present in pores ranging from 200 to 2000A in diameter, and from 3 to about 35 percent of the total pore volume being in pores greater than 2000A in diameter.
Claim 4
Dependent Claim
70 words
A hydroprocessing catalyst comprising a hydrogenation component impregnated on a silica-stabilized alumina support having more than 50 percent of its surface area in pores ranging from 30-80A in diameter, with less than 4 percent of the total pore volume being present in pores ranging from 200 to 2000A in diameter, and from 3 to about 35 percent of the total pore volume being in pores greater than 2000A in diameter.
Claim 5
Dependent Claim
35 words
The hydroprocessing catalyst of claim 2 wherein the total pore volume is no more than 0.70 cc./g. and wherein the pore volume in pores ranging from 30-80A in diameter is no more than 0.40 cc/g.
Claim 6
Dependent Claim
31 words
The hydroprocessing catalyst of claim 2 wherein the pore volume in pores ranging from 200-2000A in diameter is less than 3 percent of the total pore volume present in the catalyst.
Claim 7
Dependent Claim
31 words
The hydroprocessing catalyst of claim 2 wherein the pore volume in pores ranging from 200-2000A in diameter is less than 1 percenT of the total pore volume present in the catalyst.
Claim 8
Dependent Claim
33 words
The hydroprocessing catalyst of claim 1 wherein the pore volume in pores ranging from 200-2000A in diameter ranges from 0.01 up to 4.0 percent of the total pore volume present in the catalyst.
Claim 9
Dependent Claim
52 words
The hydroprocessing catalyst of claim 1 wherein the pore volume in pores greater than 2000A in diameter ranges from 3 up to 35 percent of the total pore volume, and wherein the pore volume in pores ranging from 200-2000A in diameter ranges from 0.1 to 4 percent of the total pore volume.
Claim 10
Dependent Claim
70 words
A hydroprocessing catalyst comprising a hydrogenation component impregnated on a silica-stabilized alumina, having from 1-6 weight percent silica, having a major portion of its surface area in pores ranging from 30-80A in diameter, with from 0.1 to 1.0 percent of the pore volume being in pores of from 200-2000A in diameter, and from 3.0 to 10.0 percent of the total pore volume being in pores greater than 2000A in diameter.
Claim 11
Dependent Claim
70 words
A hydroprocessing catalyst comprising a hydrogenation component impregnated on a silica-stabilized alumina, having from 1-6 weight percent silica, having a major portion of its surface area in pores ranging from 30-80A in diameter, with from 0.1 to 1.0 percent of the pore volume being in pores of from 200-2000A in diameter, and from 3.0 to 10.0 percent of the total pore volume being in pores greater than 2000A in diameter.
Claim 12
Dependent Claim
43 words
The hydroprocessing catalyst of claim 8 wherein the hydrogenation component is a mixture of at least one member of the oxides or sulfides of a Group VIB metal and at least one member of the oxide or sulfide of a Group VIII metal.
Claim 13
Dependent Claim
44 words
The hydroprocessing catalyst of claim 8 wherein the hydrogenation component is the oxide or sulfide of a metal selected from the group consisting of nickel and cobalt, with the oxide or sulfide of a metal selected from the group consisting of molybdenum and tungsten.
Claim 14
Dependent Claim
24 words
The hydroprocessing catalyst of claim 1 wherein the hydrogenation component comprises from about 10 up to 20 weight percent based on total catalyst composition.
Claim 15
Dependent Claim
24 words
The hydroprocessing catalyst of claim 2 wherein the hydrogenation component comprises from about 10 up to 20 weight percent based on total catalyst composition.
Claim 16
Dependent Claim
28 words
The hydroprocessing catalyst of claim 8 wherein the hydrogenation component comprises from about 2 to 5 weight percent CoO and from about 8 to 15 weight percent MoO3.
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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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |