羰基硫净化用过渡金属基催化剂研究进展  

Research progress of transition metal-based catalysts for carbonyl sulfide purification

作　　者：周鹏翔 李彬[1] 杨迪 齐佳敏 钱文敏[1] ZHOU Pengxiang;LI Bin;YANG Di;QI Jiamin;QIAN Wenmin(Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650500,Yunnan,China)

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650500

出　　处：《天然气化工—C1化学与化工》2022年第6期6-14,共9页Natural Gas Chemical Industry

基　　金：国家重点研发计划(2019YFC0214404)。

摘　　要：羰基硫(COS)是工业生产中常见的含硫有毒有害气体,会导致工业烟气中硫含量上升、催化剂中毒以及产品质量下降等,因此,有必要对含COS的工业原料气及烟气进行精脱硫。综述了较为广泛的过渡金属基催化剂在COS净化方面的研究进展,总结了吸附作用、催化水解和加氢还原3种主要机理,并分析了不同净化方法在COS净化方面的不足,例如吸附法在硫容和再生方面的不足、催化水解法在抗中毒能力方面的不足,以及加氢还原法成本较高等。在总结机理研究进展的基础上,简述了过渡金属基催化剂在COS净化中的开发潜力,以过渡金属与类水滑石和固体废物联合开发催化剂,可进一步降低成本,提高效率。总结认为,基于多机理和复合催化剂的耦合净化方法可弥补单机理净化方法的不足,将成为未来的主流研究方向。Carbonyl sulfide(COS)is a common toxic and harmful gas containing sulfur in industrial production,which can lead to increase of sulfur content in industrial flue gas,catalyst poisoning,and decline of product quality,etc.Therefore,it is necessary to carry out fine desulfurization for industrial raw gas and flue gas containing COS.Research progress of COS purification by widely researched transition metal-based catalysts was reviewed,and three main mechanisms of adsorption,hydrolysis and hydrogenation reduction were summarized,and the deficiencies of different COS purification methods were analyzed,such as the deficiencies of adsorption method in sulfur capacity and regeneration,the deficiencies of catalytic hydrolysis method in anti-poisoning ability and high cost of hydrogenation reduction method.Based on the summary of the mechanism research progress,the development potential of transition metal-based catalysts for COS purification was briefly described.The joint development of transition metal-hydrotalcite like and solid waste catalysts can further reduce the cost and improve the efficiency.It is concluded that,the purification methods based on the coupling of various mechanisms and the composite catalysts will make up for the shortcomings of single mechanism purification method and will become the mainstream research direction in the future.

关 键 词：过渡金属 羰基硫 吸附 水解 加氢还原 催化剂 

分 类 号：TQ09[化学工程] X511[环境科学与工程—环境工程]