文献类型：期刊文献

英文题名：β Zeolite/bentonite composite as a novel catalyst for condensation of aniline to diphenylamine

作者：Yang, Yeqing[1];Liao, Yingling[1];Liu, Naiwang[1];Shi, Li[1];Meng, Xuan[1]

机构：[1]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：29

期号：1

起止页码：103

外文期刊名：JOURNAL OF POROUS MATERIALS

收录：;EI(收录号：20213610869385);WOS:【SCI-EXPANDED(收录号:WOS:000698159900001)】；

语种：英文

外文关键词：beta Zeolite; Bentonite; Aniline; Condensation; Diphenylamine

摘要：beta Zeolite/bentonite composite was synthesized by simple kneading as catalyst for condensation reaction of aniline to diphenylamine. The experiment which was conducted at 320 degrees C under 2 MPa with a liquid hourly space velocity (LHSV) of 2 h(-1) showed that the H beta zeolite loading 25% clay exhibited the highest activity (9.9% aniline conversion) and selectivity. Pilot experiments (315-320 degrees C, 2 MPa, LHSV of 0.20-0.22 h(-1)) have also confirmed that the catalyst had good stability. The crystalline structure, acidic property and textural property of the catalysts were characterized by XRD, Py-IR, N-2 adsorption-desorption. Moreover, according to the thermodynamic analysis, the condensation of aniline to diphenylamine is an exothermic reaction, indicating that too high temperature operation is unfavorable for the reaction. The studied beta zeolite/bentonite composite is of promising efficiency in condensation of aniline to diphenylamine.