Catalytic cracking catalysts comprising non-zeolitic molecular sieves
AssigneeUnion Carbide Corporation
InventorsRegis J. Pellet, Peter K. Coughlin, Mark T. Staniulis, Gary N. Long, Jule A. Rabo
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Abstract
Cracking catalysts and their use in cracking processes are disclosed. The cracking catalysts are prepared using novel non-zeolitic molecular sieves and, optionally, traditional zeolitic aluminosilicate cracking components.
Claims25
The process for the preparation of a catalyst comprising:
- (a) forming a mixture of at least one zeolitic aluminosilicate and at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, TiAPO, FeAPO and FCAPO and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C. at a weight ratio of between about 1:10 and about 500:1, respectively;
- (b) forming a mixture of the product of step (a) and at least one inorganic oxide matrix component to form a catalyst.
The process for the preparation of a catalyst comprisng:
- (a) forming a mixture of at least one inorganic oxide matrix component and at least one zeolitic aluminosilicate;
- (b) forming a mixture of at least one inorganic oxide matrix component and at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, TiAPO, FeAPO and FCAPO and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C.;
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- (c) forming a mixture of the products of steps (a) and (b) to form a catalyst having a weight ratio of zeolitic aluminosilicate to NZ-MS between about 1:10 and about 500:1.
A catalyst comprising at least one zeolitic aluminosilicate having cracking activity and at least one NZ-MS selected from the group consisting of SAPO, ELAPSO, MeAPO, TiAPO, FeAPO and FCAPO and characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a pressure of 500 torr and a temperature of 20.degree. C. wherein the weight ratio between said aluminosilicate and NZ-MS is between about 1:10 and about 500:1.
Dependencies are inferred from the claim text.