Citation: SHU Yun, ZHANG Fan, WANG Fan, WANG Hong-mei, WANG Hong-chang. Biomass-derived activated carbon supported potassium catalyst for reduction of NO_x in excess oxygen with higher selectivity[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(6): 747-754. shu

Biomass-derived activated carbon supported potassium catalyst for reduction of NO_x in excess oxygen with higher selectivity

Research Center of Air Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Corresponding author: SHU Yun, shuyun@craes.org.cn
Received Date: 24 January 2017
Revised Date: 31 March 2017

Fund Project: the National Natural Science Foundation of China 21507119the Key Technology Research and Development Program of Qinghai Province 2012-J-144

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The selective reduction of NO in an oxygen-rich environment with biomass-derived activated carbon supported potassium catalyst was investigated. The. results show that in comparison with coal (lignite) based activated carbon supported potassium catalyst, biomass (sawdust) based activated carbon supported potassium catalyst exhibits a high selectivity for the reduction of NO_x to N₂, keeping a high and stable activity with NO reduction of about 80% during 2 h-isothermal experiment as well as a relatively low activity with the oxygen-carbon reaction of 18%. XRD, BET, XPS and TPD results indicate that the excellent catalytic performance of the biomass-derived activated carbon supported potassium catalyst is associated with the highly dispersion of active potassium species, which might result from the high surface area and the large amount of surface oxygen groups. Furthermore, the selective emission of CO₂ with regard to CO is an additional benefit of using biomass-derived activated carbon as the support for NO reduction.
- NO reduction,
- biomass carbon,
- selective,
- catalyst
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Biomass-derived activated carbon supported potassium catalyst for reduction of NOx in excess oxygen with higher selectivity

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通讯作者: 陈斌, bchen63@163.com

Biomass-derived activated carbon supported potassium catalyst for reduction of NO_x in excess oxygen with higher selectivity