State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University
Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment,Nanjing University
State Key Laboratory of Green Chemical Engineering andIndustrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd.
Sinopec Catalyst Co., Ltd., Sinopec Group

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(SO2)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SO2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SO2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SO2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SO2中毒性能的主要策略,深入揭示了SO2在催化剂表面的吸附、转化过程,并揭示了SO2与催化剂表面活性中心的相互作用机制,同时指出了抗SO2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SO2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 vehicleexhaust, and its excessive emissions pose a serious threat to human health. Currently, catalytic oxida⁃tion technology is widely used for CO emission control. However, sulfur dioxide (SO), which is prev⁃alent in industrial flue gas and motor vehicle exhaust, can cause irreversible poisoning of CO oxidationcatalysts, resulting in their severe deactivation. Therefore, improving the SO resistance performance ofCO oxidation catalysts has become a research hotspot in the field of environmental catalysis. This reviewsummarizes the SO poisoning mechanism on CO oxidation catalysts, categorizes the methods of charac⁃terizing sulfur species on the catalyst surface, and discusses effective strategies to enhance the SO re⁃sistance performance of various CO oxidation catalysts. This review will contribute to the understandingof the adsorption and transformation processes of SO on the catalyst surface, revealing the mechanismof the interaction between SO and catalysts, and providing significant references for the design andsynthesis of CO oxidation catalysts with superior SO resistance performance.

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)

谭伟,穆屹波,张弼凤,等.抗SO2中毒CO氧化催化剂的研究进展[J].能源环境保护,2024,38(4):17-29.

TAN Wei, MU Yibo, ZHANG Bifeng, et al. Research progresses of CO oxidation catalysts with superior SO2 re⁃sistance[J]. Energy Environmental Protection, 2024, 38(4): 17-29.