Attrition resistant molecular sieve catalysts
AssigneeExxonMobil Chemical Patents Inc.
InventorsYun-Feng Chang, Stephen N. Vaughn, Luc R. M. Martens, Kenneth R. Clem
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Abstract
This invention is directed to a hardened molecular sieve catalyst composition, a method of making the composition and a method of using the composition. The catalyst composition is made by mixing together molecular sieve, liquid, and an effective hardening amount of a dried molecular sieve catalyst to form a slurry. The slurry is dried, and then calcined to form the hardened molecular sieve catalyst composition. The hardened molecular sieve catalyst is highly attrition resistant.
Claims13
A method of making a hardened molecular sieve catalyst composition, the method comprising the steps of:
- a) mixing together crystalline molecular sieve that has not been formulated into a catalyst composition, liquid, and formulated molecular sieve catalyst that contains template material and one or more of matrix material and binder to form a slurry of solids and liquid, wherein from 15 wt % to 80 wt % of the solids in the slurry, based on total weight of solids in the slurry, is the formulated molecular sieve catalyst;
- b) drying the slurry;
- and
- c) calcining the dried slurry to form the hardened molecular sieve catalyst composition.
Dependencies are inferred from the claim text.