US4308129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Octane improvement cracking catalyst
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1980-11-12
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Granted: 1981-12-29
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Expires: 2000-11-12
Abstract
Abstract A cracking catalyst comprising discrete particles of ultra-stable Y-type zeolite and discrete particles of alumina, which particles are dispersed in a porous oxide matrix to produce a catalyst containing 5-40 wt. % ultra-stable Y-type zeolite, 5-40 wt. % alumina and 40-90 wt. % of porous oxide matrix. The cracking catalyst has unusually high activity and selectivity for the production of high octane gasoline fractions from higher boiling point feedstocks.
Inventors
- 👤 Elroy M. Gladrow
- 👤 William E. Winter
- 👤 William L. Schuette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:40
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
65 words
A process for the catalytic cracking of a hydrocarbon feedstock which comprises contacting said feedstock under catalytic cracking conditions with a cracking catalyst composition comprising discrete particles of ultra-stable Y zeolite and discrete particles of alumina, which particles are dispersed in a porous oxide matrix to produce a catalyst containing 5-40 wt.% ultra-stable Y zeolite, 5-40 wt.% alumina and 40-90 wt.% of porous oxide matrix.
Claim 2
Dependent Claim
65 words
A process for the catalytic cracking of a hydrocarbon feedstock which comprises contacting said feedstock under catalytic cracking conditions with a cracking catalyst composition comprising discrete particles of ultra-stable Y zeolite and discrete particles of alumina, which particles are dispersed in a porous oxide matrix to produce a catalyst containing 5-40 wt.% ultra-stable Y zeolite, 5-40 wt.% alumina and 40-90 wt.% of porous oxide matrix.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein said porous oxide matrix comprises silica-alumina gel.
Claim 4
Dependent Claim
18 words
The process of claim 2 wherein said ultra-stable Y zeolite contains less than 1 wt.% Na 2 O.
Claim 5
Dependent Claim
28 words
The process of claim 3 wherein said ultra-stable Y zeolite contains less than 1% rare earth metal ions and has a unit cell size less than 24.40 A.
Claim 6
Dependent Claim
22 words
The process of claim 4 wherein said catalyst comprises 10-30 wt.% ultra-stable Y zeolite, 10-30 wt.% alumina and 50-80 wt.% silica-alumina gel.
Claim 7
Dependent Claim
69 words
A process for the catalytic cracking of a hydrocarbon feedstock which comprises contacting said feedstock under catalytic cracking conditions with a cracking catalyst composition comprising discrete particles of ultra-stable Y zeolite containing less than 1 wt.% Na 2 O and discrete particles of alumina, which particles are dispersed in silica-alumina gel to produce a catalyst containing 5-40 wt.% ultra-stable Y zeolite, 5-40 wt.% alumina and 40-90 wt.% silica-alumina gel.
Claim 8
Dependent Claim
69 words
A process for the catalytic cracking of a hydrocarbon feedstock which comprises contacting said feedstock under catalytic cracking conditions with a cracking catalyst composition comprising discrete particles of ultra-stable Y zeolite containing less than 1 wt.% Na 2 O and discrete particles of alumina, which particles are dispersed in silica-alumina gel to produce a catalyst containing 5-40 wt.% ultra-stable Y zeolite, 5-40 wt.% alumina and 40-90 wt.% silica-alumina gel.
Claim 9
Dependent Claim
22 words
The process of claim 6 wherein the temperature at which said feedstock is catalytically cracked ranges between about 850° to 1050° F.
Claim 10
Dependent Claim
21 words
The process of claim 7 wherein the pressure at which said feedstock is catalytically cracked ranges between 0 and 50 psig.
Claim 11
Dependent Claim
18 words
The process of claim 8 wherein the feed rate of said feedstock ranges between 1 to 200 W/Hr/W.
Claim 12
Dependent Claim
19 words
The process of claim 9 wherein said catalyst is regenerated at a temperature ranging between 1100° and 1500° F.
Claim 13
Dependent Claim
19 words
The process of claim 9 wherein said catalyst is regenerated at a temperature ranging between 1175° and 1350° F.
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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) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |