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Effect of acid strength distribution on de‐ t ‐butylation rate and catalyst fouling rate
Author(s) -
Takahashi Takeshige,
Kuramoto Kenji,
Kai Takami,
Tashiro Masashi
Publication year - 1987
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450650417
Subject(s) - catalysis , acid strength , fouling , chemistry , coke , catalyst poisoning , inorganic chemistry , catalyst support , organic chemistry , biochemistry , zeolite , membrane
De‐ t ‐butylation of t ‐butylbenzenes was carried out over a pyridine poisoned solid acidic catalyst to determine the effect of acid strength distribution on the reaction rate and catalyst fouling rate. The acid sites on the solid acidic catalyst were divided into three groups by their acid strength. Moderate acid sites, which were effective for the de‐ t ‐butylation but ineffective for the coke formation, were exclusively left on the catalyst surface by the partial poisoning. It is found that the present modification of the catalyst is useful in preparing an acid catalyst without catalyst fouling by coke deposition.