Nitrogen and phosphorus co-doped activated carbon induces high density Cu^(+)active center for acetylene hydrochlorination  

作　　者：Fei Li Xuemei Wang Pengze Zhang Qinqin Wang Mingyuan Zhu Bin Dai 

机构地区：[1]College of Chemistry and Chemical Engineering,Yantai University,Yantai 264004,China [2]School of Chemistry and Chemical Engineering,Shihezi University,Shihezi 832000,China

出　　处：《Chinese Journal of Chemical Engineering》2023年第7期193-199,共7页中国化学工程学报（英文版）

基　　金：supported by the Taishan Scholars Program of Shandong Province(tsqn202103051);the Project of Scientific Research in Shihezi University(CXFZ202205)。

摘　　要：This work aims to solve the problems of low reaction activity of Cu-based catalysts and agglomeration of active centers in acetylene hydrochlorination.Cu-based catalysts supported by NAP co-doped activated carbon(AC)with different content(mCu-xNP/AC)were manufactured and applied in the acetylene hydrochlorination reaction.It was found that the doping of carriers N and P induced the transformation of Cu^(2+)to Cu^(+),and the catalytic activity was markedly improved.Under the optimal reaction temperature of 220℃,the gas hourly space velocity(GHSV)of C_(2)H_(2)was 90 h^(-1)and V_(HCl):V_(C_(2)H_(2))was 1.15.The initial activity of the 5%Cu-30 NP/AC catalyst reached 95.59%.Through some characterization methods showed the addition of N and P improved the dispersion of Cu in carbon,which increased the ratio of Cu^+/Cu^(2+).The measurement results confirmed that the chemisorption capacity of mCu-xNP/AC for C_(2)H_(2)decreased slightly,and the chemisorption capacity for HCl increased significantly,which was the reason for the increased activity of the catalyst.The conclusion provides a reference for the development of acetylene hydrochlorination Cu catalyst.

关 键 词：Acetylene hydrochlorination Cu-based catalysts Catalytic activity Heterogeneous catalysis N and P co-doped 

分 类 号：TQ426[化学工程]