Back to results
US 5,116,794 AGranted
Method for enhancing the activity of zeolite beta
AssigneeUop LLC
InventorsGary W. Skeels, Edith M. Flanigen
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeUop LLC
InventorsGary W. Skeels, Edith M. Flanigen
Estimating the term…
The present invention relates to methods for enhancing at least one catalytic property of a crystalline microporous three-dimensional solid catalyst having the structure and composition of zeolite beta for use in hydrocarbon conversion processes. An essential step in the methods of the present invention comprises activating the catalyst which had previously been calcined and subjected to ion-exchange with a hydrogen-forming cation by heating in air or in inert atmosphere at a temperature of from about 575.degree.-657.degree. C. and for a period of time sufficient to enhance at least one catalytic property of the catalyst for use in the hydrocarbon conversion process. Typical of the enhanced catalytic properties which can be achieved in accordance with the present invention are catalytic activity and catalytic selectivity. Typical hydrocarbon conversion processes wherein the zeolite beta-containing catalyst of the present invention can be used include, for example, dewaxing, hydrodewaxing, cracking, hydrocracking, alkylation, isomerization, aromatization, disproportionation and the like.
A method for enhancing at least one catalytic property of a crystalline microporous three-dimensional solid catalyst having the structure and composition of zeolite beta for use in a hydrocarbon conversion process, said catalyst having previously been calcined and subjected to ion-exchange with a hydrogen-forming cation, said method comprising;
A method for enhancing at least one catalytic property of a crystalline microporous three-dimensional solid catalyst having the structure and composition of zeolite beta for use in a hydrocarbon conversion process, said catalyst having previously been calcined, said method comprising:
In a method for enhancing at least one catalytic property of a crystalline microporous three-dimensional solid catalyst having the structure and composition of zeolite beta for use in a hydrocarbon conversion process, said catalyst having previously been subjected to calcination by heating in air or an inert atmosphere at a temperature and for a period of time sufficient to oxidize at least a substantial portion of a catalyst templating agent initially present on said catalyst, said method comprising the steps of:
Dependencies are inferred from the claim text.