Reforming using a bound zeolite catalyst

Details Reforming using a bound zeolite catalyst Reforming using a bound zeolite catalyst

1989-05-15

1992-04-21

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

And additional al or si containing component

B01J 2930

Patent

active

051068036

ABSTRACT:
Reforming to produce aromatics from aliphatics, using a bond zeolite catalyst containing a Group VIII metal such as platinum, has been found to be extremely sensitive to water, even at water concentrations as low as 3 ppm in the feed, unless certain catalysts having a low water sensitivity index are used. The water sensitivity index (WSI) is described and methods for making catalysts with a low WSI are described. The sulfur content of the feed to the reforming/aromatics production process is preferably below 50 parts per billion. The catalysts used in the reforming process is preferably a high crush strength catalyst and is preferably prepared by steps including treating L zeolite with a binding enhancement agent prior to binding with a binder such as silica, silica/alumina or alumina.

REFERENCES:
patent: 2331353 (1943-10-01), Stoewener et al.
patent: 3393156 (1968-07-01), Hansford
patent: 4579831 (1986-04-01), Field
patent: 4721695 (1988-01-01), Buss et al.
patent: 4822762 (1989-04-01), Ellig et al.

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