Abstract

In this work, the selectivity of different solid catalysts in the alkylation reaction of toluene with hex-1-ene has been studied in order to maximize mono-alkylated products. The reaction has been carried out in a fixed-bed reactor, at 120°C. An industrial alkylation catalyst has been used as a reference along with three commercial acid zeolites with difference structures (faujasite, mordenite and beta). All of catalysts achieved total conversion. Mono-alkyltoluenes selectivity was higher than 95% in all cases and formation of di-alkyltoluenes was less than 4.5%. The main products, mono-alkyltoluenes, were identified by Nuclear Magnetic Resonance spectroscopy. This work analyses the effect of physicochemical and structural properties of solid catalysts on the selectivity to the different alkylation products.

中文翻译：

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甲苯与六-1-烯液相烷基化的NMR研究：催化剂对选择性的影响

摘要

在这项工作中，为了最大化单烷基化的产物，已经研究了不同的固体催化剂在甲苯与己-1-烯的烷基化反应中的选择性。反应已在120℃的固定床反应器中进行。工业烷基化催化剂已与三种结构不同的商业酸性沸石（八面沸石，丝光沸石和β沸石）一起用作参考。所有催化剂均达到总转化率。在所有情况下，单烷基甲苯的选择性均高于95％，二烷基甲苯的形成低于4.5％。通过核磁共振波谱鉴定了主要产物单烷基甲苯。这项工作分析了固体催化剂的理化和结构性质对不同烷基化产物选择性的影响。