Abstract
The alkylation of benzene with dodecene-1 has been studied over catalysts with a combined micro-mesoporous structure with different amounts of mesopores obtained by the hydrothermal recrystallization of Beta and mordenite zeolites. The main features of the reaction of benzene alkylation with dodecene-1 over the micro-mesoporous catalysts have been established. The formation of transport pores and an increase in the accessibility of acid sites as a result of recrystallization under mild conditions facilitate an increase in the activity, with a high selectivity for linear phenyldodecanes being retained; a higher degree of recrystallization to MCM-41 leads to a decrease in the conversion and selectivity; the mordenite-based catalysts are more active than zeolite Beta.
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