US4266672A
Expired / Lapsed
US
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Catalytic cracking with sepiolite
Assignee: Chevron USA Inc
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Filing: 1979-09-26
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Granted: 1981-05-12
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Expires: 1999-09-26
Abstract
Abstract A process is disclosed for cracking hydrocarbons by contacting the hydrocarbons with a catalyst composition comprising dispersed rods of fibrous form sepiolite and an inorganic oxide gel for binding the sepiolite rods.
Inventors
- 👤 Robert A. Van Nordstrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:56
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; B; B01; B01J; B01J21/00; B01J21/14; B01J29/00; B01J29/04; B01J29/06; B01J29/80; B01J29/08; B01J29/084; B01J29/40; B01J35/00; B01J35/30; B01J35/34; B01J35/38; B01J35/70
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A process for cracking a hydrocarbon feed in the adsence of added molecular hydrogen, which comprises: contacting said feed, at catalytic cracking conditions, with a catalyst composition comprising shaped catalytic bodies including (1) dispersed rods of fibrous form sepiolite, and (2) at least one porous refractory inorganic oxide gel, said gel bonding said sepiolite rods together in a rigid substantially random mutual orientation in said catalytic bodies.
Claim 2
Dependent Claim
67 words
A process for cracking a hydrocarbon feed in the adsence of added molecular hydrogen, which comprises: contacting said feed, at catalytic cracking conditions, with a catalyst composition comprising shaped catalytic bodies including (1) dispersed rods of fibrous form sepiolite, and (2) at least one porous refractory inorganic oxide gel, said gel bonding said sepiolite rods together in a rigid substantially random mutual orientation in said catalytic bodies.
Claim 3
Dependent Claim
29 words
A process as defined in claim 1 wherein said inorganic oxide gel is present in said composition in an amount between 10 and 50 weight percent of said rods.
Claim 4
Dependent Claim
28 words
A process as defined in claim 1 wherein the average diameter of said rods is between 2% and 10% of the average diameter of said shaped catalytic bodies.
Claim 5
Dependent Claim
37 words
A process as defined in claim 1 wherein at least 40 weight percent of the total pore volume in said catalytic bodies is provided by pores with diameters between about 200 Angstrom units and 1000 Angstrom units.
Claim 6
Dependent Claim
30 words
A process as defined in claim 1 wherein said rods have an average length:diameter ratio between about 5:1 and 100:1, where the diameter is the maximum diameter of said rods.
Claim 7
Dependent Claim
26 words
A process as defined in claim 1 wherein said catalytic bodies further include from 0.01 to 30 weight percent of at least one zeolitic crystalline aluminosilicate.
Claim 8
Dependent Claim
24 words
A process as defined in claim 6 wherein said catalytic bodies include from 5 to 15 weight percent of a Y-type zeolitic crystalline aluminosilicate.
Claim 9
Dependent Claim
24 words
A process as defined in claim 6 wherein said catalytic bodies include from 0.01 to 5 weight percent of a ZSM-5-type zeolitic crystalline aluminosilicate.
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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) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |