06096938 is referenced by 20 patents and cites 2 patents.

An improved zeolite catalyst having enhanced dealkylation activity is provided. The catalyst is prepared by incorporating fluorine into the zeolite structure. In another embodiment, a transition element such as nickel is additionally incorporated into the zeolite structure. The process for producing the catalyst also includes ion-exchange and calcining steps. A mordenite type catalyst has been found to be particularly effective. The catalyst of the present invention demonstrates improved activity for the dealkylation of polyalkylaromatic compounds found in residue from the alkylation process and in heavy reformate streams from refineries. A dealkylation process using the catalyst of the present invention is provided. The dealkylation process shows good selectivity for benzene and monoalkylated aromatic products, and catalyst stability, particularly at high reaction temperatures.

Title
Zeolite catalyst with enhanced dealkylation activity and method for producing same
Application Number
753582
Publication Number
6096938
Application Date
November 10, 1999
Publication Date
August 1, 2000
Inventor
Ashim Kumar Ghosh
Houston
TX, US
Agent
M Norwood Cheairs
Pamela S Smith
William D Jackson
Assignee
Fina Technology
TX, US
IPC
C07C 4/12
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