EP0020154A1
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EP
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Zeolite-containing hydrocarbon cracking catalyst and hydrocarbon cracking process utilizing same
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1980-05-30
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Granted: —
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Expires: 2000-05-30
Abstract
Abstract A hydrocarbon cracking catalyst comprises (a) an ultrastable Y-type crystalline zeolite (b), a small pore crystalline zeolite such as ZSM-5 mordenite, erionite, zeolite A, a ZSM-type zeolite, chabazite or offretite, an (c) inorganic oxide matrix and, optionally, (d) a porous inorganic oxide component. The cracking catalyst has a high activity and selectivity for the production of high octane naphtha fractions from higher poiling point hydrocarbonaceous oils. Catalytic cracking processes utilizing the catalyst are also provided.
Inventors
- 👤 Elroy Merle Gladrow
- 👤 William Edward Winter Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 09:21
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/80; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; B01J29/08; B01J29/084; B01J29/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A catalyst for the catalytic cracking of hydrocarbons comprising a crystalline aluminosilicate zeolite and an inorganic oxide matrix, characterized in that it comprises: (a) an ultrastable Y-type crystalline aluminosilicate zeolite having less than about 1 weight percent rare earth metals, calculated as the elemental metal, based on the zeolite; (b) a small pore crystalline metallosilicate zeolite selected from erionite, mordenite, zeolite A, ZSM-type zeolite, ZSM-5 type zeolite, chabazite and offretite; and (c) a catalytic inorganic oxide matrix.
Claim 2
Dependent Claim
77 words
A catalyst for the catalytic cracking of hydrocarbons comprising a crystalline aluminosilicate zeolite and an inorganic oxide matrix, characterized in that it comprises: (a) an ultrastable Y-type crystalline aluminosilicate zeolite having less than about 1 weight percent rare earth metals, calculated as the elemental metal, based on the zeolite; (b) a small pore crystalline metallosilicate zeolite selected from erionite, mordenite, zeolite A, ZSM-type zeolite, ZSM-5 type zeolite, chabazite and offretite; and (c) a catalytic inorganic oxide matrix.
Claim 3
Dependent Claim
38 words
The catalyst of claim 1 characterized in that said catalyst comprises a porous inorganic oxide having initially a surface area greater than 20 square meters per gram and a pore volume greater than 0.25 cubic centimeters per gram.
Claim 4
Dependent Claim
49 words
The catalyst of claim 2 characterized in that said porous inorganic oxide has initially a surface area greater than 100 square meters per gram and at least 0.2 cubic centimeter per gram of its pore volume in pores having diameters in the range of from 90 to 200 Angstroms.
Claim 5
Dependent Claim
26 words
The catalyst of claim 2 or claim 3 characterized in that said porous inorganic oxide is selected from alumina, titania, zirconia, magnesia and any mixtures thereof.
Claim 6
Dependent Claim
28 words
The catalyst of any one of claims 2 to 4 characterized in that said porous inorganic oxide comprises alumina stabilized with from 0.5 to 6 weight percent silica.
Claim 7
Dependent Claim
35 words
The catalyst of any one of claims 1 to 5 characterized in that the weight ratio of said ultrastable Y-type zeolite to said small pore zeolite is in the range of from 0.5:1 to 10:1.
Claim 8
Dependent Claim
27 words
The catalyst of any one of claims 1 to 6 characterized in that said small pore metallosilicate zeolite is the hydrogen form of said small pore zeolite.
Claim 9
Dependent Claim
17 words
The catalyst of any one of claims 1 to 7 characterized in that said matrix comprises silica-alumina.
Claim 10
Dependent Claim
24 words
The catalyst of any one of claims 1 to 8 characterized by comprising from 5 to 40 weight percent of said ultrastable Y-type zeolite.
Claim 11
Dependent Claim
46 words
A catalytic cracking process which comprises contacting a hydrocarbonaceous feed at catalytic cracking conditions in the absence of added hydrogen with a catalyst characterized in that the process is performed in the presence of a catalyst in accordance with any one of claims 1 to 9.
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