Supported catalysts for simultaneous removal of SO2, NOx, and Hg0 from industrial exhaust gases: A review
Supported catalysts for simultaneous removal of SO2, NOx, and Hg0 from industrial exhaust gases: A review
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DOI：
10.1016/j.cclet.2021.03.023
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发表时间：
2021-03
影响因子：
9.1
通讯作者：
Kechao Zhao;Xin Sun;Chi Wang;Xin Song;Fei Wang;Kai Li;P. Ning
中科院分区：
文献类型：
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作者：
Kechao Zhao;Xin Sun;Chi Wang;Xin Song;Fei Wang;Kai Li;P. Ning
同时脱除工业烟气中的SO2、NOx和Hg0是近年来国内外研究的热点。选择性催化还原法是一种特别有吸引力的技术，它可以在低温下有效地去除SO2、NOx和Hg0。本文首先综述了非负载型和负载型催化剂同时脱除SO2、NOx和Hg0的研究进展。然后介绍和比较了各种载体的研究进展，碳基材料，金属氧化物，二氧化硅，分子筛，金属有机框架，和柱撑层间粘土，在同时去除SO2，NOx和Hg0。全面系统地讨论了烟气成分（O2、NH3、HCl、H2O、SO2、NO、Hg0）对SO2、NOx、Hg0去除的影响。本文在总结了催化剂脱除SO2、NOx和Hg0机理的基础上，对催化剂同时脱除SO2、NOx和Hg0的研究进展进行了展望。
The simultaneous removal of SO2, NOxand Hg0from industrial exhaust flue gas has drawn worldwide attention in recent years. A particularly attractive technique is selective catalytic reduction, which effectively removes SO2, NOxand Hg0at low temperatures. This paper first reviews the simultaneous removal of SO2, NOxand Hg0by unsupported and supported catalysts. It then describes and compares the research progress of various carriers, eg., carbon-based materials, metal oxides, silica, molecular sieves, metal-organic frameworks, and pillared interlayered clays, in the simultaneous removal of SO2, NOxand Hg0. The effects of flue-gas components (such as O2, NH3, HCl, H2O, SO2, NO, and Hg0) on the removal of SO2, NOx, and Hg0are discussed comprehensively and systematically. After summarizing the pollutant-removal mechanism, the review discusses future developments in the simultaneous removal of SO2, NOxand Hg0by catalysts.