US4794095A
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US
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Catalytic cracking catalyst
Assignee: Phillips Petroleum Co
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Filing: 1987-07-02
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Granted: 1988-12-27
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Expires: 2007-07-02
Abstract
Abstract A composition of matter, suitable as cracking catalyst, comprises zeolite, silica matrix and vanadium oxide(s) at a level of at least 0.2 weight-% V. A process for preparing the above composition of matter comprises the steps of contacting zeolite in a silica matrix with at least one vanadium compound and calcining the thus contacted material. A process for cracking substantially liquid hydrocarbon-containing feed streams, which contain at least about 5 ppmw vanadium, in the presence of the above composition of matter as catalyst, is provided.
Inventors
- 👤 Darrell W. Walker
- 👤 Fu M. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:41
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/076
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
55 words
A composition of matter, effective as a cracking catalyst composition, comprising (a) zeolite, (b) silica matrix material, in which said zeolite is embedded, containing less than about 0.5 weight-% alumina, and (c) at least one vanadium oxide at a total level of at least about 0.2 weight-% V, based on the entire composition of matter.
Claim 2
Dependent Claim
55 words
A composition of matter, effective as a cracking catalyst composition, comprising (a) zeolite, (b) silica matrix material, in which said zeolite is embedded, containing less than about 0.5 weight-% alumina, and (c) at least one vanadium oxide at a total level of at least about 0.2 weight-% V, based on the entire composition of matter.
Claim 3
Dependent Claim
32 words
A composition of matter in accordance with claim 1 wherein the BET/N 2 surface area of component (b) is in the range of from about 200 to about 1,000 m 2 /g.
Claim 4
Dependent Claim
32 words
A composition of matter in accordance with claim 1 wherein the BET/N 2 surface area of component (b) is in the range of from about 300 to about 700 m 2 /g.
Claim 5
Dependent Claim
20 words
A composition of matter in accordance with claim 1 comprising about 0.2 to about 2.0 weight-% V as vanadium oxide.
Claim 6
Dependent Claim
20 words
A composition of matter in accordance with claim 1 comprising about 0.3 to about 1.0 weight-% V as vanadium oxide.
Claim 7
Dependent Claim
28 words
A composition of matter in accordance with claim 1 wherein said zeolite is a zeolite Y having a BET/N 2 surface area of about 200-1,000 m 2 /g.
Claim 8
Dependent Claim
32 words
A composition of matter in accordance with claim 1 wherein the weight ratio of said zeolite to said silica matrix material is in the range of from about 1:30 to about 1:1.
Claim 9
Dependent Claim
28 words
A composition of matter in accordance with claim 1 having a BET/N 2 surface area in the range of from about 100 to about 800 m 2 /g.
Claim 10
Dependent Claim
102 words
A process for preparing a composition of matter, effective as a cracking catalyst composition, comprising the steps of (I) contacting (i) a material comprising zeolite embedded in a matrix material consisting essentially of silica with (ii) at least one vanadium compound, under such conditions as to incorporate said at least one vanadium compound (ii) into said material (i) at a level of at least about 0.2 weight-% V; and (II) heating the material obtained in step (I) in a free oxygen containing gas under such conditions as to substantially convert said at least one vanadium compound to at least one vanadium oxide.
Claim 11
Dependent Claim
102 words
A process for preparing a composition of matter, effective as a cracking catalyst composition, comprising the steps of (I) contacting (i) a material comprising zeolite embedded in a matrix material consisting essentially of silica with (ii) at least one vanadium compound, under such conditions as to incorporate said at least one vanadium compound (ii) into said material (i) at a level of at least about 0.2 weight-% V; and (II) heating the material obtained in step (I) in a free oxygen containing gas under such conditions as to substantially convert said at least one vanadium compound to at least one vanadium oxide.
Claim 12
Dependent Claim
34 words
A process in accordance with claim 9 wherein said material (i) comprises a zeolite Y and a silica matrix material having a BET/N 2 surface area in excess of about 100 m 2 /g.
Claim 13
Dependent Claim
27 words
A process in accordance with claim 10 wherein said BET/N 2 surface area is in the range of from about 200 to about 1,000 m 2 /g.
Claim 14
Dependent Claim
38 words
A process in accordance with claim 9 wherein said at least one vanadium compound used in step (I) is contained as impurity in a liquid hydrocarbon-containing feed stream at a concentration of at least 5 ppmw of V.
Claim 15
Dependent Claim
23 words
A process in accordance with claim 12 wherein said concentration is in the range of from about 5 to about 200 ppmw V.
Claim 16
Dependent Claim
25 words
A process in accordance with claim 12 wherein contacting step (I) is carried out at a temperature of from about 800° to about 1200° F.
Claim 17
Dependent Claim
26 words
A process in accordance with claim 9 wherein said heating step (II) is carried out at a temperature of from about 1100° to about 1300° F.
Claim 18
Dependent Claim
33 words
A process in accordance with claim 9 wherein the material obtained in step (I) is exposed, before step (II), to flowing steam having a temperature of from about 1,000° to about 1,500° F.
Claim 19
Dependent Claim
24 words
A process in accordance with claim 9 wherein the material obtained in step (II) is admixed with a material consisting essentially of material (i).
Claim 20
Dependent Claim
25 words
A process in accordance with claim 9 wherein the material obtained in step (II) contains about 0.2 to about 2.0 weight-% V as vanadium oxide.
Claim 21
Dependent Claim
70 words
A composition of matter, effective as a cracking catalyst composition, comprising: (a) zeolite, (b) matrix material, in which said zeolite is embedded, consisting essentially of silica having a surface area, measured by the BET method employing nitrogen, in excess of about 100 m 2 /g, and (c) at least one vanadium oxide at a total level of at least about 0.2 weight-% V, based on the entire composition of matter.
Claim 22
Dependent Claim
70 words
A composition of matter, effective as a cracking catalyst composition, comprising: (a) zeolite, (b) matrix material, in which said zeolite is embedded, consisting essentially of silica having a surface area, measured by the BET method employing nitrogen, in excess of about 100 m 2 /g, and (c) at least one vanadium oxide at a total level of at least about 0.2 weight-% V, based on the entire composition of matter.
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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) | 1991-12-27 | 1992-06-27 | 1992-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-27 | 1996-06-27 | 1996-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-27 | 2000-06-27 | 2000-12-27 | $7700.00 | Window Closed / Lapsed |