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Patent US5037531A successfully refreshed from Google Patents.
US5037531A
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US
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Catalytic cracking process
Assignee: Mobil Oil AS
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Filing: 1989-10-30
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Granted: 1991-08-06
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Expires: 2009-10-30
Abstract
Abstract A catalytic cracking process is disclosed using a catalyst comprising a framework dealuminate Y zeolite, which is rare earth and aluminum exchanged.
Inventors
- 👤 Robert G. Bundens
- 👤 Joseph A. Herbst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:48
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; B01J2229/00; B01J2229/10; B01J2229/16
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
124 words
A process for the catalytic cracking of a hydrocarbon by contact of said hydrocarbon with a catalytic cracking catalyst at catalytic cracking conditions to produce cracked products, characterized by use of a catalyst composition comprising: 1 to 60 weight percent framework dealuminated Y zeolite, based on the total weight of the composition; 40 to 99 weight percent of a matrix, based on the total weight of said composition; 0.01 to 15 weight percent alumina incorporated into said catalyst composition via ion exchange, based on the total weight of said composition; 0.01 to 10 weight percent rare earth, expressed as the oxides of same, based on the total weight of said composition, dispersed, impregnated or deposited in a composite of said zeolite and said matrix.
Claim 2
Dependent Claim
124 words
A process for the catalytic cracking of a hydrocarbon by contact of said hydrocarbon with a catalytic cracking catalyst at catalytic cracking conditions to produce cracked products, characterized by use of a catalyst composition comprising: 1 to 60 weight percent framework dealuminated Y zeolite, based on the total weight of the composition; 40 to 99 weight percent of a matrix, based on the total weight of said composition; 0.01 to 15 weight percent alumina incorporated into said catalyst composition via ion exchange, based on the total weight of said composition; 0.01 to 10 weight percent rare earth, expressed as the oxides of same, based on the total weight of said composition, dispersed, impregnated or deposited in a composite of said zeolite and said matrix.
Claim 3
Dependent Claim
34 words
The process of claim 1 wherein from 1 to 80 weight percent of the matrix is a weighting agent and/or a densifying agent selected from alumina (corundum), TiO 2 , ZrO 2 and clays.
Claim 4
Dependent Claim
23 words
The process of claim 1 wherein the catalyst composition further comprises 0.01 to 1 pbw chromium, expressed as Cr 2 O 3 .
Claim 5
Dependent Claim
25 words
The process of claim 1 wherein the catalyst composition further comprises 1 to 5000 ppm by weight of at least one noble metal and/or rhenium.
Claim 6
Dependent Claim
20 words
The process of claim 1 wherein the catalyst composition has an alkali metal content of 0.0001 to 1.0 weight percent.
Claim 7
Dependent Claim
21 words
The process of claim 1 wherein the silica:alumina molar ratio of the framework dealuminated zeolite Y is from 5 to 100.
Claim 8
Dependent Claim
17 words
The process of claim 1 wherein said zeolite is in the hydrogen, rare-earth or ammonium exchanged form.
Claim 9
Dependent Claim
28 words
The process of claim 1 wherein said rare earth is lanthanum, cerium or mixtures thereof and/or any element of the lanthanide series of the periodic chart of elements.
Claim 10
Dependent Claim
30 words
The process of claim 1 wherein said matrix is SiO 2 , Al 2 O 3 , SiO 2 -Al 2 O 3 , TiO 2 ZrO 2 and/or clay.
Claim 11
Dependent Claim
29 words
The process of claim 1 wherein the unit cell size, as determined by x-ray diffraction, of the zeolite in the finished catalyst is from about 24.25A to about 24.55A.
Claim 12
Dependent Claim
21 words
The process of claim 1 wherein the catalyst composition further comprises a zeolite having a constraint index of 1 to 12.
Claim 13
Dependent Claim
15 words
The process of claim 1 wherein the feedstock comprises at least 50% wt. atmospheric resid.
Claim 14
Dependent Claim
13 words
The process of claim 1 wherein the cracking process is a fluidized-bed process.
Claim 15
Dependent Claim
13 words
The process of claim 1 wherein the cracking process is a moving-bed process.
Claim 16
Dependent Claim
90 words
A process for the catalytic cracking of a hydrocarbon by contact of said hydrocarbon with a catalytic cracking catalyst at catalytic cracking conditions to produce cracked products, characterized by use of an aluminum and rare earth exchanged, framework dealuminated zeolite cracking catalyst comprising: 1 to 60 weight percent framework dealuminated Y zeolite having a framework silica:alumina molar ratio of 5:1 to 100:1; 0.01 to 15 weight percent alumina added to said catalyst via aluminum exchange; 0.01 to 10 weight percent rare earth oxides; and 40 to 99 weight percent matrix.
Claim 17
Dependent Claim
90 words
A process for the catalytic cracking of a hydrocarbon by contact of said hydrocarbon with a catalytic cracking catalyst at catalytic cracking conditions to produce cracked products, characterized by use of an aluminum and rare earth exchanged, framework dealuminated zeolite cracking catalyst comprising: 1 to 60 weight percent framework dealuminated Y zeolite having a framework silica:alumina molar ratio of 5:1 to 100:1; 0.01 to 15 weight percent alumina added to said catalyst via aluminum exchange; 0.01 to 10 weight percent rare earth oxides; and 40 to 99 weight percent matrix.
Claim 18
Dependent Claim
15 words
The process of claim 1 wherein the Y zeolite is an ultrastable Y (USY) zeolite.
Claim 19
Dependent Claim
15 words
The process of claim 15 wherein the Y zeolite is an ultrastable Y (USY) zeolite.
Claim 20
Dependent Claim
20 words
The process of claim 1 wherein the rare earth content of the cracking catalyst is 0.4 to 1.4 weight percent.
Claim 21
Dependent Claim
20 words
The process of claim 15 wherein the rare earth content of the cracking catalyst is 0.4 to 1.4 weight percent.
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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) | 1994-08-05 | 1995-02-04 | 1995-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-05 | 1999-02-04 | 1999-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-05 | 2003-02-04 | 2003-08-06 | $7700.00 | Window Closed / Lapsed |