Bimetallic Au-Sn/AC catalysts for acetylene hydrochlorination

被引：60
|
作者：
Dong, Yanzhao [1 ]
Zhang, Haiyang [1 ]
Li, Wei [2 ]
Sun, Mengxia [2 ]
Guo, Cuili [2 ]
Zhang, Jinli [1 ]
机构：
[1] Tianjin Univ, Key Lab Syst Bioengn MOE, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Key Lab Green Chem Technol MOE, Tianjin 300072, Peoples R China
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2016年 / 35卷
关键词：
Acetylene hydrochlorination; Au-Sn catalyst; Coking deposition; SURFACE ORGANOMETALLIC CHEMISTRY; GOLD CATALYSTS; VINYL-CHLORIDE; PT-SN/AL2O3; CATALYSTS; ALCOHOL OXIDATION; CARBON SUPPORTS; HYDROGEN; DEHYDROGENATION; DEACTIVATION; ISOBUTANE;
D O I：
10.1016/j.jiec.2015.12.031
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of Au-Sn/AC catalysts for acetylene hydrochlorination were prepared by an incipient wetness impregnation method and characterized by BET, XPS, TEM, TPR, XRD, ICP-AES and TPD techniques. It is indicated that Au1Sn1/AC catalyst shows the highest activity and stability with the 95% acetylene conversion after 48 h reaction under the conditions of 170 degrees C and an acetylene gas hourly space velocity of 720 h(-1). The Sn additive can make the Au species dispersed well and weaken the occurrence of coke deposition, as well as inhibit the reduction of Au3+ to Au-0, thereby improving the catalytic activity and stability. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：177 / 184
页数：8
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