VOCs催化燃烧催化剂抗SO_(2)中毒研究进展  

Research Progress on Anti-SO_(2)Poisoning Catalysts for VOCs Catalytic Combustion

作　　者：杨丹 董芳 张继义[2] 唐志诚[1] YANG Dan;DONG Fang;ZHANG Ji-yi;TANG Zhi-cheng(National Engineering Research Center for Fine Petrochemical Intermediates,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Petroleum and Chemical,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]中国科学院兰州化学物理研究所,精细石油化工中间体国家工程研究中心,甘肃兰州730000 [2]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《分子催化（中英文）》2024年第3期284-296,I0004,共14页Journal of Molecular Catalysis(China)

基　　金：甘肃省自然科学基金(23JRRA638,23JRRA622);兰州市人才创新创业项目(2022-RC-26)。

摘　　要：在VOCs催化氧化过程中,二氧化硫易与反应物在催化剂活性位点上产生竞争吸附行为,且能够与活性物种或载体反应生成硫酸盐使催化剂中毒,严重影响了催化氧化反应的效率.我们总结了催化剂的SO_(2)中毒行为,概括了目前在贵金属、非贵金属催化剂的设计中应用较为广泛的抗SO_(2)中毒措施,如助剂掺杂、双金属体系构建、载体改性、核壳结构设计等,剖析了催化剂酸性位的增强、结构的稳固、壳层保护等抵御SO_(2)吸附与反应的原理,并对VOCs领域内抗SO_(2)中毒催化剂的设计进行了总结与展望.In the catalytic oxidation process of VOCs,sulfur dioxide is easy to produce competitive adsorption behavior with reactants at the active sites of the catalyst,and can react with active species or carriers to produce sulfate,causing catalyst poisoning,which seriously affects the efficiency of catalytic oxidation reaction.This review summarizes the SO_(2) poisoning behavior of catalysts,outlines the anti-SO_(2) poisoning measures widely used in the design of noble metal and non-noble metal catalysts,such as additive doping,bimetal system construction,carrier modification,core-shell structure design,etc.,and analyzes the principle of strengthening the acid site of catalysts,structural stability,shell protection and other resistance to SO_(2) adsorption and reaction.Finally,the design of anti-SO_(2) poisoning catalysts in the field VOCs is summarized and prospected.

关 键 词：VOCS 催化燃烧 硫中毒 核壳结构 

分 类 号：O643.32[理学—物理化学]