抗SO_(2)中毒CO氧化催化剂的研究进展  

Research progresses of CO oxidation catalysts with superior SO_(2)resistance

作　　者：谭伟 穆屹波 张弼凤 蔡彦迪 纪小雨 杨家伟 蒋楠 郭凯 刘安鼐 董林 TAN Wei;MU Yibo;ZHANG Bifeng;CAI Yandi;JI Xiaoyu;YANG Jiawei;JIANG Nan;GUO Kai;LIU Annai;DONG Lin(State Key Laboratory of Pollution Control and Resource Reuse,School of Environment,Nanjing University,Nanjing 210023,China;Jiangsu Key Laboratory of Vehicle Emissions Control,School of Environment,Nanjing University,Nanjing 210023,China;State Key Laboratory of Green Chemical Engineering and Industrial Catalysis,Sinopec Shanghai Research Institute of Petrochemical Technology Co.,Ltd.,Shanghai 201208,China;Sinopec Catalyst Co.,Ltd.,Sinopec Group,Beijing 100176,China)

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210023 [2]南京大学环境学院江苏省机动车尾气污染控制重点实验室,江苏南京210023 [3]中石化(上海)石油化工研究院有限公司绿色化工与工业催化全国重点实验室,上海201208 [4]中国石化催化剂有限公司,北京100176

出　　处：《能源环境保护》2024年第4期17-29,共13页Energy Environmental Protection

基　　金：国家自然科学基金资助项目(22306090,22272077);江苏省自然科学基金资助项目(BK20230773,BK20231513)。

摘　　要：一氧化碳(CO)是一种广泛存在于工业烟气和机动车尾气中的大气污染物,其过量排放会严重影响人体健康。目前,催化氧化技术广泛应用于CO的排放控制,但工业烟气和机动车尾气中普遍存在的二氧化硫(SO_(2))等有毒组分通常会对CO氧化催化剂造成不可逆的毒害,导致催化剂严重失活。因此,如何提升CO氧化催化剂抗SO_(2)中毒性能已经成为环境催化领域的热点问题。目前,研究人员在设计高抗SO_(2)中毒的催化剂方面取得了丰富的研究成果。通过总结当前主流的CO氧化催化剂的SO_(2)中毒机制,概括了催化剂表面硫物种数量和存在状态的检测分析方法,评述了提升不同种类CO氧化催化剂抗SO_(2)中毒性能的主要策略,深入揭示了SO_(2)在催化剂表面的吸附、转化过程,并揭示了SO_(2)与催化剂表面活性中心的相互作用机制,同时指出了抗SO_(2)中毒CO氧化催化剂的发展瓶颈,以期为设计合成具有优越抗SO_(2)性能的CO氧化催化剂提供重要参考。Carbon monoxide(CO)is a common air pollutant in industrial flue gas and motor vehicle exhaust,and its excessive emissions pose a serious threat to human health.Currently,catalytic oxidation technology is widely used for CO emission control.However,sulfur dioxide(SO_(2)),which is prevalent in industrial flue gas and motor vehicle exhaust,can cause irreversible poisoning of CO oxidation catalysts,resulting in their severe deactivation.Therefore,improving the SO_(2)resistance performance of CO oxidation catalysts has become a research hotspot in the field of environmental catalysis.This review summarizes the SO_(2)poisoning mechanism on CO oxidation catalysts,categorizes the methods of characterizing sulfur species on the catalyst surface,and discusses effective strategies to enhance the SO_(2)resistance performance of various CO oxidation catalysts.This review will contribute to the understanding of the adsorption and transformation processes of SO_(2)on the catalyst surface,revealing the mechanism of the interaction between SO_(2)and catalysts,and providing significant references for the design and synthesis of CO oxidation catalysts with superior SO_(2)resistance performance.

关 键 词：CO氧化 SO_(2)中毒 抗SO_(2)性能 SO_(2)中毒机理 催化剂设计 

分 类 号：X701[环境科学与工程—环境工程]