钒基催化剂同步去除燃煤烟气中甲苯与NO<sub><i>x</i></sub>研究

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Abstract V₂O₅-WO₃-MoO_x/TiO₂ cordierite monolithic catalyst was prepared by different synthetic methods. Using toluene and NO as probe molecules, the effects of Mo loading, coating method and binder type on the performance of monolithic catalyst were investigated. XRD, SEM-EDS, FT-IR and BET techniques were used to characterize the catalysts. The results showed that V1W6MO3/TiO₂ cordierite honeycomb ceramic monolithic catalyst prepared by coating method with 1% methyl cellulose as binder had the highest activity and stability (T₉₀=307℃, load rate=28.26%, shedding rate=6.81%), and had excellent performance of simultaneous removal of VOCs and NO in the flue gas of coal burning (toluene removal rate=99%, NO removal rate=100%, N₂ selectivity=99%). XRD and SEM-EDS showed that the active components of V, W and Mo were evenly distributed and highly dispersed. FT-IR showed that the monolithic catalyst with methyl cellulose added had excellent SO₂ resistance performance.

Key words： coal-fired flue gas catalytic oxidation monolithic catalyst synergistic removal of VOCs and NO_x

Received: 13 January 2021

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X511

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	ZHANG Yi-lan
	XIAO Gao-fei
	LI Jiang-han
	DU Yue-ying
	FU Ming-li
	HU Yun

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ZHANG Yi-lan,XIAO Gao-fei,LI Jiang-han等. Synergistic removal of toluene and NO_x on vanadium-based catalyst[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(8): 3546-3554.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I8/3546

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