微型多孔材料
催化作用
选择性
苯胺
化学
喹啉
沸石
ZSM-5型
介孔材料
产量(工程)
吸附
无机化学
核化学
化学工程
有机化学
材料科学
冶金
工程类
作者
Н. Г. Григорьева,A. V. Bayburtli,О. С. Травкина,С. В. Бубеннов,Р. З. Куватова,A. S. Artem’eva,Б. И. Кутепов
标识
DOI:10.1002/slct.202103532
摘要
Abstract The activity, selectivity, and stability of microporous highly dispersed zeolites (H‐Y, H‐ZSM‐5) and granulated hierarchical zeolites (H‐Y h and H‐ZSM‐5 h ) were studied in the synthesis of quinolines by the Skraup reaction. Texture, porous structure, morphology of crystals, acidic properties were characterized by XRD, XRF, N 2 adsorption‐desorption, SEM, NH 3 ‐TPD methods. It was found that quinoline, 2‐ and 4‐methylquinolines are the main products in the reaction of aniline with glycerol in the presence of the studied catalysts. H‐ZSM‐5 h and H‐Y h catalysts are more efficient than catalysts H‐ZSM‐5 and HY and provide a yield of quinolines to 72.4 (H‐ZSM‐5 h ) and 60.2 % (H‐Y h ) at 450 °C, 0.2 h −1 , the molar ratio of aniline:glycerol=1 : 3. The high activity and selectivity of hierarchical zeolites are due to the presence of meso‐ and macropores, as well as nanocrystals of 15–100 nm size. It was reported that hierarchical catalysts exhibit higher stability in the reaction compared with microporous zeolites.
科研通智能强力驱动
Strongly Powered by AbleSci AI