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US 5,849,968 AGranted
Hydrocarbon conversion process with alkaline earth metal ion exchanged selectivated zeolite catalyst
AssigneeMobil Oil Corporation
InventorsJeffrey S. Beck, David L. Stern
Life of this patent
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Abstract
There is provided a zeolite catalyst, which is first selectivated with a siliceous material and then treated with an aqueous solution comprising alkaline earth metal ions under ion exchange conditions.
Claims13
A process for hydrocarbon conversion, said process comprises contacting a reaction stream comprising a hydrocarbon to be converted, under conversion conditions, with a selectivated catalyst composition, prepared by the steps of:
- (a) contacting a catalyst comprising a zeolite with an organosilicon compound under conditions sufficient to deposit a siliceous material on said catalyst;
- (b) contacting the catalyst comprising a zeolite and siliceous material from step (a) with an aqueous solution comprising at least one alkaline earth metal cation;
- (c) washing the aqueous solution treated catalyst from step (b) with water;
- (d) drying the washed catalyst from step (c);
- and
- (e) recovering a catalyst composition comprising said zeolite, said siliceous material and alkaline earth metal ions from said aqueous solution of step (b).
3 more elements
Dependencies are inferred from the claim text.