Abstract
It was the object of this study to find correlations between acidity and the activities of various reactions on decationated zeolites.Catalytic activities of decationated zeolites were investigated in the dehydration of ethanol, alkylation of benzene with ethylene or ethanol, cracking of cumene and isomerization and disproportionation of o-xylene using a flow apparatus. Acidity and strength of acid sites on decationated zeolites were determined by amine titration.From these observations, it was suggested that the acid site at H0_??_+3.3 played an important role in the alkylation of benzene with ethylene or ethanol and disproportionation of o-xylene, while the acid site at H0_??_-3.0 played an important role in the dehydration of ethanol to ethyl ether, cracking of cumene and isomerization of o-xylene.
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