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US 5,346,875 AGranted
Method of manufacturing fluid catalytic cracking catalyst
AssigneeExxon Research & Engineering Co.
InventorsWilliam A. Wachter, Stuart L. Soled
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Abstract
This invention is to a method of manufacturing fluid catalytic cracking catalyst. In particular, the invention is to a method of manufacturing a catalytic cracking catalyst which incorporates a step of matching the isoelectric point of each component of the catalyst framework structure to the pH of an inorganic oxide sol used to form the matrix component of the catalyst. The resulting catalyst product has a controlled pore size and is extremely durable.
Claims8
A method of manufacturing a catalytic cracking catalyst comprising:
- providing a framework structure having a measurable isoelectric point, wherein the framework structure is at least one component selected from the group consisting of a crystalline tetrahedral framework oxide component, an active porous inorganic oxide catalyst framework component, and an inert catalyst framework component;
- providing an inorganic oxide sol having a measurable pH;
- measuring the isoelectric point of each component of the framework structure;
- measuring the pH of the inorganic oxide sol;
- matching the isoelectric point of each component of the framework structure to the pH of the inorganic oxide sol;
- combining in solution the inorganic oxide sol with each component of the framework structure;
- and
- drying the combined solution.
5 more elements
Dependencies are inferred from the claim text.