铁锰基整体式催化剂催化燃烧甲苯和氯苯性能

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Abstract This research compared a series of FeMn-based monolithic catalysts prepared by incipient impregnation, ultrasonicassisted impregnation and redox-precipitation. These catalysts were characterized by various techniques such as BET, SEM, XRD, H₂-TPR and XPS. The results suggested that the redox-precipitation sample owned layered structure, which exposed larger specific surface area and more active site. In addition, the reduction temperature of the redox-precipitation sample was the lowest and Mn⁴⁺ content was the highest among the samples, which enhanced its catalytic performance. The redox-precipitation sample had the best catalytic performance for toluene and chlorobenzene combustion, its T₅₀/T₉₀ of toluene were 200℃ and 270℃, and the T₅₀/T₉₀ of chlorobenzene were 261℃ and 320℃, respectively. Meanwhile, its stability was also preferable than the other samples.

Key words： VOCs universality catalytic oxidation cordierite FeMn

Received: 24 December 2021

PACS:

X701

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	Articles by authors
	WANG Xiao-qiang
	YANG Ning
	XU Li
	LI Xiang-peng
	WANG Yu

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WANG Xiao-qiang,YANG Ning,XU Li等. Catalytic performance of FeMn-based monolithic catalysts for toluene and chlorobenzene catalytic combustion[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(7): 3084-3092.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I7/3084

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