面向工业气源中COS水解转化的催化剂研究进展  

Research progress in catalysts for the hydrolysis and conversion of COS in industrial gas sources

作　　者：王晋斌 时培祥 赵彬[1,2] 武蒙蒙 苗茂谦[1,2] 吕永康 上官炬[1,2] 秦志峰 WANG Jin-bin;SHI Pei-xiang;ZHAO Bin;WU Meng-meng;MIAO Mao-qian;L Yong-kang;SHANGGUAN Ju;QIN Zhi-feng(State Key Laboratory of Clean and Efficience Coal Utilization,Taiyuan University of Technology,Taiyuan 030024,China;College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China;School of Safety and Emergency Management Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Zheda Institute of Advanced Materials and Chemical Engineering,Taiyuan 030000,China)

机构地区：[1]太原理工大学省部共建煤基能源清洁高效利用国家重点实验室,山西太原030024 [2]太原理工大学化学工程与技术学院,山西太原030024 [3]太原理工大学安全与应急管理工程学院,山西太原030024 [4]山西浙大新材料与化工研究院,山西太原030000

出　　处：《应用化工》2024年第2期474-478,488,共6页Applied Chemical Industry

基　　金：2018年度山西省优秀人才科技创新项目(201805D211037);2016年度山西省科技重大专项(MJH2016-03);山西浙大新材料与化工研究院研发项目资助(2021ST-AT-002);东莞市能源投资集团有限公司攻关项目(RH2000004464)。

摘　　要：综述了COS水解催化剂载体与活性组分对其催化性能的调控作用、水解机理以及工业气氛中影响催化剂催化活性因素的研究现状。研究发现:氧化铝基复合载体负载碱金属活性组分所制备的COS水解催化剂能更好的提高催化剂的活性与稳定性,COS水解反应具有明显的碱催化特征,工业气氛中的CO_(2)与O_(2)气氛浓度对水解催化剂的抗氧耐酸性能有较大的影响,单质硫的生成和/或催化剂表面的硫酸盐化是催化剂失活的主要原因。通过对催化剂失活因素分析,定向调控催化剂的组成与结构制备高活性及高抗氧耐酸性能的新型COS水解催化剂与基于工业气源及水解热力学动力学条件优选下的水解催化反应工艺参数相结合来延长催化剂的寿命是未来的发展趋势。This article reviews the regulatory effects of COS hydrolysis catalyst carriers and active components on their catalytic performance,hydrolysis mechanisms,and the research status of factors affecting catalyst catalytic activity in industrial atmospheres.It was found that the COS hydrolysis catalyst prepared by loading alkali metal active components on alumina based composite carriers can better improve the activity and stability of the catalyst.The COS hydrolysis reaction has obvious alkaline catalytic characteristics,and the concentration of CO_(2) and O_(2) in industrial atmosphere has a significant impact on the oxygen and acid resistance of the hydrolysis catalyst.The generation of elemental sulfur and/or the sulfation of the catalyst surface are the main reasons for catalyst deactivation.The development trend in the future is to prepare a new type of COS hydrolysis catalyst with high activity and high oxygen and acid resistance by analyzing the deactivation factors of the catalyst,and to extend the lifespan of the catalyst by combining it with the optimization of hydrolysis catalytic reaction process parameters based on industrial gas source and hydrolysis thermodynamic kinetic conditions.

关 键 词：羰基硫(COS) 负载型水解催化剂 三氧化二铝载体 水解机理 失活机理 

分 类 号：TQ52[化学工程—煤化学工程]