乙炔法合成氯乙烯用金基催化剂的再生研究  

Regeneration research of gold-based catalyst for acetylene to vinyl chloride

作　　者：李霖 牟博 苏雅文 曾利辉 吴晨 祝高庆 金晓东 Li Lin;Mou Bo;Su Yawen;Zeng Lihui;Wu Chen;Zhu Gaoqing;Jin Xiaodong(Kaili Catalyst&New Materials Co.,Ltd.,Xi’an 710201,Shaanxi,China;National&Local Joint Engineering Research Center for New Noble Metal Catalysts R&D Technology,Xi’an 710201,Shaanxi,China;Shaanxi Key Laboratory of Catalytic Materials and Technology,Xi’an 710201,Shaanxi,China;Xi’an Key Laboratory of Catalytic Materials and Technology,Xi’an 710201,Shaanxi,China)

机构地区：[1]西安凯立新材料股份有限公司,陕西西安710201 [2]新型贵金属催化剂研发技术国家地方联合工程研究中心,陕西西安710201 [3]陕西省催化材料与技术重点实验室,陕西西安710201 [4]西安市催化材料与技术重点实验室,陕西西安710201

出　　处：《工业催化》2023年第5期59-62,共4页Industrial Catalysis

基　　金：陕西省创新能力支撑计划项目(2020TD-007);2022年陕西省重点研发计划项目(2022GY-396)。

摘　　要：利用物理吸附和同步热重分析手段对失活前后的乙炔法合成氯乙烯用金基催化剂进行表征。结果表明,积炭是导致金基催化剂失活的最主要原因之一。通过高温焙烧、王水煮沸和双氧水浸泡等处理,对失活的金基催化剂进行再生研究,在固定床反应装置上对其乙炔氢氯化反应性能进行评价。结果显示,再生的金基催化剂在反应温度(130~170)℃、乙炔空速30 h^(-1)、氯化氢与乙炔体积比为1.05∶1的条件下,运行5000 h后的乙炔转化率≥85%。The fresh and deactivated gold-based catalyst for vinyl chloride synthesis from acetylene have been characterized by physical adsorption and simultaneous thermogravimetric analysis.The results show that carbon deposition is one of the main cause of the catalyst deactivation.We regenerated the deactivated catalyst through high-temperature roasting,aqua regia boiling and hydrogen peroxide soaking in turn,and investigated its catalytic performance in the hydrochlorination of acetylene by using the fixed bed reactor.The results show that acetylene conversion is over 85%over the regenerated catalyst after 5000 h of reaction under the condition of reaction temperature(130-170)℃,space velocity 30 h^(-1),and V_(HCl)∶V_(C_(2)H_(2))=1.05 in feed.

关 键 词：有机化学工程 乙炔氢氯化 氯乙烯 金基催化剂 

分 类 号：TQ222.423[化学工程—有机化工] TQ426.94