在NL原粉基础上，制备了具有一定稳定性的乙基化催化剂z937。

An ethylation catalyst Z937 with suitable stability were prepared on THD basis of NL.

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乙基化的选择性则与催化剂的表面酸强度、酸性中心位置和孔道结构等因素有关。

Ethylation selectivity, was affected by strength of surface acid sites, location of acid sites and pore structure.

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实验结果表明：本体系中相转移催化剂的催化效率是苄基三乙基氯化铵大于四丁基溴化铵和四乙基溴化铵；

The results show that catalytic efficiency of the phase transfer catalyst BETAC is higher than TBAB, and TBAB is nearly as efficient as TEBA.

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