Molecular sieve agglomerates with improved transport properties

Details Molecular sieve agglomerates with improved transport properties Molecular sieve agglomerates with improved transport properties

1990-05-07

1992-12-01

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Forming or treating a sphere, process only

Forming other than by liquid immersion

502 62, 502 69, B01J 2018, B01J 2904

Patent

active

051680840

ABSTRACT:
Molecular sieve agglomerates exhibiting reduced pore mouth blockage and decreased diffusivity resistance to the internal sieve pores result from coating, prior to addition of a binding agent to the sieve, the molecular sieve particles with an organic polymer, fixing the polymer to the sieve surface so that it exhibits no migratory tendencies and subsequently removing the coating by combustion during calcination of the formed agglomerate. Such agglomerates showed enhanced activity and selectivity in typical refining processes such as dewaxing and fluid catalytic cracking.

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patent: 4822492 (1989-04-01), Chao et al.
patent: 4859311 (1989-08-01), Miller

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