Catalyst composition including attrition particles and method for making same
AssigneeExxon Mobil Chemical Patents Inc.
InventorsStephen N. Vaughn, Luc R. M. Martens, Keith H. Kuechler, Albert E. Schweizer
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Abstract
Disclosed is a molecular sieve catalyst which contains molecular sieve-containing attrition particles and virgin molecular sieve, the attrition particles having been recycled from a catalyst manufacture process or from a reaction system. The catalyst can be used in a variety of catalytic reaction processes. A desired process is making olefins from an oxygenate feedstock. The recovery and use of the attrition particles in the catalyst is beneficial in minimizing waste, thereby reducing problems relating to both environmental and economic constraints.
Claims22
A catalyst composition comprising:
- molecular sieve-containing catalyst attrition particles;
- virgin molecular sieve;
- and
- binder.
A method of making a molecular sieve catalyst composition comprising:
- mixing together molecular sieve-containing catalyst attrition particles, virgin molecular sieve components and binder;
- and
- spray drying the mixture to form the molecular sieve catalyst composition.
Dependencies are inferred from the claim text.