文献类型：期刊文献

英文题名：W Modified HY Zeolite as Catalyst for Alkylation of Aromatic

作者：Kuai, Leiting[1];Wang, Mengke[1];Meng, Xuan[1];Shi, Li[1];Liu, Naiwang[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：152

期号：8

起止页码：2480

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20214211032812);WOS:【SCI-EXPANDED(收录号:WOS:000707555900003)】；

基金：We are so grateful and want to extend our sincere appreciations for the financial support from National Natural Science Foundation of China (No. 21808054).

语种：英文

外文关键词：WO3/HY zeolite; Phosphotungstic acid; Naphthalene alkylation; Coke deactivation

摘要：HY zeolite is commonly considered to have a suitable pore structure for alkylation of aromatic. However, coke deposition results in catalytic activity falling rapidly because of its strong acidity. Herein, we prepared WO3/HY zeolite catalysts by liquid phase deposition method with phosphotungstic acid as the precursor, and their catalytic activities were evaluated by alkylation of naphthalene and n-tetradecene (C14H28). Characterizations showed that WO3 increased acid density and optimized the distribution of surface acidity and pore structure. The process not only increases the W5+ content which can increase the catalytic activity, but also reduces the reaction temperature to extend the service life. Both advantages of the catalysts achieved 96.12% conversion of naphthalene and 97.46% selectivity of monoalkylnaphthalene.