碳负载Cs和Cu基催化剂用于1,1,2-三氯乙烷的气相脱氯化氢  

Carbon supported Cs-and Cu-based catalysts for gas-phase dehydrochlorination of 1,1,2-trichloroethane

作　　者：盖星宇 岳玉学 杨春华[1] 张子龙 蔡天姿 张海丰[1] 王柏林 李小年[2] GAI Xingyu;YUE Yuxue;YANG Chunhua;ZHANG Zilong;CAI Tianzi;ZHANG Haifeng;WANG Bolin;LI Xiaonian(School of Chemical Engineering,Northeast Electric Power University,Jilin 132012,Jilin,China;Industrial Catalysis Institute,Zhejiang University of Technology,Hangzhou 310014,Zhejiang,China)

机构地区：[1]东北电力大学化学工程学院,吉林吉林132012 [2]浙江工业大学工业催化研究所,浙江杭州310014

出　　处：《化工学报》2024年第2期575-583,共9页CIESC Journal

基　　金：国家自然科学基金项目(22202036);吉林省科技发展计划项目(20230101292JC);国家重点研发计划项目(2021YFA1501800);国网吉林省电力有限公司科技项目(2022JBGS-01)。

摘　　要：采用浸渍法制备了Cs/AC和Cu/AC催化剂,并在1,1,2-三氯乙烷的气相脱氯化氢反应中进行了评价。在浸渍过程中,活性炭表面产生高度分散的Cs物种和少量结晶的Cu物种。Cs/AC催化剂具有优异的催化性能,在573 K、1000 h^(−1)的反应条件下,转化率稳定在86.7%。实验和理论计算表明,CsCl物种促进了1,1,2-三氯乙烷的吸附和活化,从而提高了原料转化率。这项工作为探索高效经济地合成偏二氯乙烯提供了一种很有前景的策略。Cs/AC and Cu/AC catalysts were prepared by impregnation method and evaluated in the gas-phase dehydrochlorination reaction of 1,1,2-trichloroethane.Highly dispersed Cs species and crystalline Cu species are generated on the carbon surface during the impregnation process.Superior catalytic performance is triggered for the Cs/AC catalyst,with an 86.7%stable conversion under reaction conditions of 573 K and a gas hourly space velocity of 1000 h^(−1).Experimental and theoretical calculations show that the adsorption and activation 1,1,2-trichloroethane is facilitated over the CsCl species,thereby enhancing the catalytic performance.This work provides a promising strategy to explore highly efficient and economic catalysts for the synthesis of 1,1-dichloroethylene.

关 键 词：偏二氯乙烯 活性炭 催化 1 1 2-三氯乙烷脱氯化氢 催化剂载体 

分 类 号：TQ072[化学工程]