Patent US3410984A successfully refreshed from Google Patents.
US4137151A
Expired / Lapsed
US
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Hydrocarbon conversion with cracking catalyst having co-combustion promoters lanthanum and iron
Assignee: Chevron USA Inc
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Filing: 1977-02-25
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Granted: 1979-01-30
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Expires: 1997-02-25
Abstract
Abstract A composition useful in hydrocarbon conversion processes such as catalytic cracking is disclosed, comprising 0.05 to 10 weight percent lanthanum associated with a refractory support. The composition may also include 0.02 to 10 weight percent iron.
Inventors
- 👤 Sigmund M. Csicsery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:58
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/064; B01J29/072; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
A process for catalytically cracking a hydrocarbon feedstock which comprises contacting said feedstock with a catalyst composition comprising 1 to 80 weight percent of a zeolitic crystalline aluminosilicate, 0.05 to 10 weight percent lanthanum, calculated as the elemental metal and excluding lanthanum in the crystal structure of said aluminosilicate, and 0.05 to 10 weight percent iron, calculated as the elemental metal and excluding iron in the crystal structure of said zeolite and excluding iron deposited on said catalyst composition during catalytic use, said lanthanum, iron and aluminosilicate being dispersed in a porous, refractory matrix, at catalytic cracking conditions including a temperature in the range from 800° F. to 1300° F.
Claim 2
Dependent Claim
110 words
A process for catalytically cracking a hydrocarbon feedstock which comprises contacting said feedstock with a catalyst composition comprising 1 to 80 weight percent of a zeolitic crystalline aluminosilicate, 0.05 to 10 weight percent lanthanum, calculated as the elemental metal and excluding lanthanum in the crystal structure of said aluminosilicate, and 0.05 to 10 weight percent iron, calculated as the elemental metal and excluding iron in the crystal structure of said zeolite and excluding iron deposited on said catalyst composition during catalytic use, said lanthanum, iron and aluminosilicate being dispersed in a porous, refractory matrix, at catalytic cracking conditions including a temperature in the range from 800° F. to 1300° F.
Claim 3
Dependent Claim
14 words
A process according to claim 1 wherein said zeolite has a faujasite crystal structure.
Claim 4
Dependent Claim
21 words
A process according to claim 1 wherein said zeolite comprises about 5 to about 20 weight percent of said catalyst composition.
Claim 5
Dependent Claim
17 words
A process according to claim 1 wherein said catalyst composition includes 0.5 to 4 weight percent lanthanum.
Claim 6
Dependent Claim
17 words
A process according to claim 1 wherein said catalyst composition includes 0.05 to 4 weight percent iron.
References Cited (Backward Citations)
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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) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |