Citation: ZHANG Qian-wei, WANG Xue-tao. Preparation and properties of Ce-Mn/ZSM-5 catalysts modified with different metals[J]. Journal of Fuel Chemistry and Technology, ;2019, 47(10): 1265-1272. shu

Preparation and properties of Ce-Mn/ZSM-5 catalysts modified with different metals

ZHANG Qian-wei ,
WANG Xue-tao ^,

School of Vehicle and Transportation Engineering, Henan University of Science and Technology, Luoyang 471003, China

Corresponding author: WANG Xue-tao, wxt7682@163.com
Received Date: 5 June 2019
Revised Date: 13 August 2019

Fund Project: National Natural Science Foundation of China 50806020Project Supported by National Natural Science Foundation of Henan Province 182300410256Henan Science and Technology Innovation Talent Program (Outstanding Youth) 114100510010The project was supported by National Natural Science Foundation of China (50806020), Henan Science and Technology Innovation Talent Program (Outstanding Youth) (114100510010), Project Supported by National Natural Science Foundation of Henan Province(182300410256)

Figures(9)

A series of Y-Ce-Mn/ZSM-5 catalysts (Y=Co, Cr, Cu, La, Zr) were prepared by impregnation method. Combined with the results of the NH₃-SCR activity test, the optimal activity temperature window and maximum denitration efficiency of various catalysts were obtained. The catalysts were characterized by XRD, TEM, H₂-TPR, NH₃-TPD and in situ DRIFTS. Through the characterization and denitration test, it was shown that the maximum denitration efficiency of all modified catalysts except Cr modified one was higher than 98%, and Cu-Ce-Mn/ZSM-5 showed the best performance among the catalysts, whose catalytic conversion at 375℃ was 99.22%. This is attributed to the highly dispersed surface metal oxide species, more surface sites with weak acidity and more species with high reducibility.
- NH₃-SCR,
- Y-Ce-Mn/ZSM-5,
- catalyst,
- NO_x,
- active temperature,
- denitration efficiency
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