Study on alkylation of ethylbenzene to p-diethylbenzene on HZSM-5 shape-selecting catalyst;
HZSM-5择形催化剂上乙苯烷基化反应生产对二乙苯的研究
The adsorption of p-diethylbenzene on ZSM-5 molecular sieve was studied by dynamic method on a 11 mm×780 mm column.
用11mm× 780mm吸附柱作动态实验 ,对二乙苯的单程收率为 6 0 %,纯度大于 95 %。
he adsorption of p-diethylbenzene on ZSM-5 zeolite has been studied by dynamic method.
本文用动态法就对二乙苯在ＺＳＭ—５分子筛上的吸附进行了研究，考察了温度、脉冲进料量、解吸剂的流速、解吸剂的性质等对分离效果的影响，确定了最佳操作条件：温度为２００℃～２３０℃，常压，以甲苯为解吸剂，解吸剂流量２５０～３５０Ｋｇ／ｍ２·ｈ，对二乙苯的单程收率为６０％，纯度＞９５％。