Patent US4283309A successfully refreshed from Google Patents.
US4283309A
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Hydrocarbon conversion catalyst
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1979-10-01
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Granted: 1981-08-11
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Expires: 1999-10-01
Abstract
Abstract A hydrocarbon conversion catalyst suitable for converion of heavy hydrocarbon oils containing large amounts of metallic contaminants, such as petroleum residua, to lower boiling products comprises a porous inorganic oxide such as bulk alumina composited with an inorganic oxide gel matrix such as silica-alumina, and a crystalline aluminosilicate zeolite.
Inventors
- 👤 Elroy M. Gladrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:58
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
A catalyst comprising: (1) a crystalline aluminosilicate zeolite, (2) a catalytic inorganic oxide gel, and (3) a porous inorganic oxide initially having a surface area greater than about 200 square meters per gram and having at least 0.2 cubic centimeter per gram of its pore volume in pores ranging in diameter from about 90 to about 200 angstroms, said catalyst having at least 0.4 cubic centimeter per gram of its pore volume in pores greater than 90 angstroms in diameter.
Claim 2
Dependent Claim
80 words
A catalyst comprising: (1) a crystalline aluminosilicate zeolite, (2) a catalytic inorganic oxide gel, and (3) a porous inorganic oxide initially having a surface area greater than about 200 square meters per gram and having at least 0.2 cubic centimeter per gram of its pore volume in pores ranging in diameter from about 90 to about 200 angstroms, said catalyst having at least 0.4 cubic centimeter per gram of its pore volume in pores greater than 90 angstroms in diameter.
Claim 3
Dependent Claim
25 words
The catalyst of claim 1 wherein said porous inorganic oxide is selected from the group consisting of alumina, silica, titania, zirconia, magnesia and mixtures thereof.
Claim 4
Dependent Claim
12 words
The catalyst of claim 1 wherein said porous inorganic oxide is alumina.
Claim 5
Dependent Claim
12 words
The catalyst of claim 1 wherein said porous inorganic oxide is silica.
Claim 6
Dependent Claim
23 words
The catalyst of claim 1 wherein said porous inorganic oxide comprises from about 1 to about 55 weight percent of the total catalyst.
Claim 7
Dependent Claim
23 words
The catalyst of claim 1 wherein said porous inorganic oxide comprises from about 5 to about 45 weight percent of the total catalyst.
Claim 8
Dependent Claim
22 words
The catalyst of claim 1 wherein said porous inorganic oxide in itself has less catalytic activity than said inorganic oxide gel component.
Claim 9
Dependent Claim
40 words
The catalyst of claim 1 wherein said zeolite comprises from about 1 to about 40 weight percent of the total catalyst and wherein said inorganic oxide gel comprises from about 45 to about 98 weight percent of the total catalyst.
Claim 10
Dependent Claim
14 words
The catalyst of claim 1 wherein said inorganic oxide gel is a silica-containing gel.
Claim 11
Dependent Claim
15 words
The catalyst of claim 1 wherein said inorganic oxide gel is a cogel of silica-alumina.
Claim 12
Dependent Claim
15 words
The catalyst of claim 1 wherein said crystalline aluminosilicate zeolite has the structure of faujasite.
Claim 13
Dependent Claim
33 words
The catalyst of claim 1 wherein said crystalline aluminosilicate zeolite has uniform pore diameters ranging from about 6 to about 15 angstroms and wherein the silica to alumina ratio is greater than 3.
Claim 14
Dependent Claim
19 words
The catalyst of claim 1 wherein said zeolite comprises less than 10 weight percent alkali-metal, calculated as the metal.
Claim 15
Dependent Claim
28 words
The catalyst of claim 1 wherein said porous inorganic oxide has been preformed and placed in physical form such that its surface area and pore structure are stabilized.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |