US4465779A
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Modified cracking catalyst composition
Assignee: Chevron USA Inc
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Filing: 1982-05-06
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Granted: 1984-08-14
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Expires: 2002-05-06
Abstract
Abstract A novel catalytic cracking composition comprising a solid cracking catalyst and a diluent containing a selected magnesium compound or a selected magnesium compound in combination with one or more heat-stable metal compounds.
Inventors
- 👤 Mario L. Occelli
- 👤 James V. Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:59
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/04; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
67 words
A novel catalytic cracking composition comprising a cracking catalyst having high activity and, as a separate and distinct entity, a diluent selected from the group consisting of a magnesium compound and a magnesium compound in combination with a heat-stable metal compound, said diluent having a surface area of about 30 to about 1000 m 2 /gram and a pore volume of about 0.05 to about 2.5 cc/gram.
Claim 2
Dependent Claim
67 words
A novel catalytic cracking composition comprising a cracking catalyst having high activity and, as a separate and distinct entity, a diluent selected from the group consisting of a magnesium compound and a magnesium compound in combination with a heat-stable metal compound, said diluent having a surface area of about 30 to about 1000 m 2 /gram and a pore volume of about 0.05 to about 2.5 cc/gram.
Claim 3
Dependent Claim
35 words
The novel catalytic cracking composition of claim 1 wherein said diluent has a surface area of about 50 to about 600 m 2 /gram and a pore volume of about 0.1 to about 1.5 cc/gram.
Claim 4
Dependent Claim
23 words
The novel catalytic cracking composition of claim 1 wherein said diluent has an average pore radius of about 10 to about 200 A.
Claim 5
Dependent Claim
23 words
The novel catalytic cracking composition of claim 2 wherein said diluent has an average pore radius of about 20 to about 110 A.
Claim 6
Dependent Claim
15 words
The novel catalytic cracking composition of claim 1 wherein said diluent is a magnesium compound.
Claim 7
Dependent Claim
14 words
The novel catalytic cracking composition of claim 1 wherein said diluent is magnesium oxide.
Claim 8
Dependent Claim
13 words
The novel catalytic cracking composition of claim 1 wherein said diluent is chrysotile.
Claim 9
Dependent Claim
13 words
The novel catalytic cracking composition of claim 1 wherein said diluent is attapulgite.
Claim 10
Dependent Claim
13 words
The novel catalytic cracking composition of claim 1 wherein said diluent is sepiolite.
Claim 11
Dependent Claim
13 words
The novel catalytic cracking composition of claim 1 wherein said diluent is hectorite.
Claim 12
Dependent Claim
16 words
The novel catalytic cracking composition of claim 1 wherein said diluent is a magnesium-containing clay mineral.
Claim 13
Dependent Claim
27 words
The novel catalytic cracking composition of claim 1 wherein said diluent contains a magnesium compound and up to about 90 weight percent of a heat-stable metal compound.
Claim 14
Dependent Claim
27 words
The novel catalytic cracking composition of claim 1 wherein said diluent contains a magnesium compound and up to about 50 weight percent of a heat-stable metal compound.
Claim 15
Dependent Claim
28 words
The novel catalytic cracking composition of claim 12 wherein said heat-stable metal compound is at least one metal oxide of silicon, aluminum, iron, calcium, phosphorus, boron or zirconium.
Claim 16
Dependent Claim
28 words
The novel catalytic cracking composition of claim 13 wherein said heat-stable metal compound is at least one metal oxide of silicon, aluminum, iron, calcium, phosphorus, boron or zirconium.
Claim 17
Dependent Claim
28 words
The novel catalytic cracking composition of claim 1 wherein the weight ratio of said cracking catalyst to diluent is in the range of about 10:90 to about 90:10.
Claim 18
Dependent Claim
28 words
The novel catalytic cracking composition of claim 1 wherein the weight ratio of said cracking catalyst to diluent is in the range of about 50:50 to about 70:30.
Claim 19
Dependent Claim
19 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst has a MAT activity above about 1.0.
Claim 20
Dependent Claim
22 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst has a MAT activity of about 1.0 to about 4.0.
Claim 21
Dependent Claim
17 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst is an amorphous silica-alumina catalyst.
Claim 22
Dependent Claim
16 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst is a cross-linked clay.
Claim 23
Dependent Claim
16 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst is a synthetic mica-montmorillonite.
Claim 24
Dependent Claim
16 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst contains a crystalline aluminosilicate.
Claim 25
Dependent Claim
19 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst contains a stabilized hydrogen crystalline aluminum silicate.
Claim 26
Dependent Claim
19 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst contains a rare earth-exchanged crystalline aluminum silicate.
Claim 27
Dependent Claim
34 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst comprises from about ten to about 60 weight percent of a zeolite having cracking characteristics dispersed in a refractory metal oxide matrix.
Claim 28
Dependent Claim
34 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst comprises from about ten to about 40 weight percent of a zeolite having cracking characteristics dispersed in a refractory metal oxide matrix.
Claim 29
Dependent Claim
34 words
The novel catalytic cracking composition of claim 1 wherein said cracking catalyst comprises from about 20 to about 40 weight percent of a zeolite having cracking characteristics dispersed in a refractory metal oxide matrix.
Claim 30
Dependent Claim
15 words
The novel catalytic cracking composition of claim 26 wherein the zeolite is a synthetic faujasite.
Claim 31
Dependent Claim
28 words
The novel catalytic cracking composition of claim 26 wherein the zeolite is at least one synthetic faujasite selected from the group consisting of type Y and type X.
Claim 32
Dependent Claim
18 words
The novel catalytic cracking composition of claim 30 wherein the X and Y zeolites are rare earth exchanged.
Claim 33
Dependent Claim
14 words
The novel catalytic cracking composition of claim 26 wherein the matrix is substantially crystalline.
Claim 34
Dependent Claim
14 words
The novel catalytic cracking composition of claim 26 wherein the matrix is substantially amorphous.
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) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |