英语语法分析

Their catalytic activities were measured by alkylation of benzene with 1-dodecene as model reaction in a slurry reactor under atmospheric pressure and fixed bed reactor.

在常压反应釜和固定床反应装置上进行，评价了催化剂对苯和1-十二烯烷基化反应催化性能。

The solid acid catalyst of supported heteropoly acid used for the synthesis of linear alkylbenzene from benzene and dodecene was characterized by using XRD, SEM, TEM and FT-IR.

在固定床反应器和一定的反应条件下，考察了改变苯烯摩尔比对负载杂多酸催化剂催化合成直链烷基苯的活性和选择性的影响。

It is showed that the conversion ratio of dodecene and the selectivity of producing 2-alkylbenzene are slightly increased with increasing molar ratio of benzene to dodecene, respectively.

实验结果表明，随着苯烯比的增加，十二烯的转化率和2位-十二烷基苯的选择性均有所增加。