Citation: XIA Fu-ting, ZHANG Jin-hui, YANG Yun-han, YANG Cui-cui, LI Xiang-hua, SONG Zhong-xian, ZHANG Qiu-lin, PENG Jin-hui. Catalytic performance and hydrothermal stability of Cu/SAPO-34 catalyst in the selective catalytic oxidation of NH₃[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(3): 328-336. shu

Catalytic performance and hydrothermal stability of Cu/SAPO-34 catalyst in the selective catalytic oxidation of NH₃

1.
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
2.
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, China
3.
Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, Yunnan Minzu University, Kunming 650500, China
4.
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China

Corresponding author: ZHANG Qiu-lin, qiulinzhang_kmust@163.com PENG Jin-hui, jhpeng@kmust.edu.cn
Received Date: 13 September 2017
Revised Date: 19 January 2018

Fund Project: The project was supported by the National Natural Science Foundation of China (21567030, 11447191), the National Program on Key Basic Research Project of China (973 program, 2014CB643404) and Natural Science Fund Item of Yunnan Province (2013FD033)the National Program on Key Basic Research Project of China 973 programthe National Program on Key Basic Research Project of China 2014CB643404The project was supported by the National Natural Science Foundation of China 21567030Natural Science Fund Item of Yunnan Province 2013FD033The project was supported by the National Natural Science Foundation of China 11447191

Figures(9)

A series of Cu/SAPO-34 catalysts for ammonia selective catalytic oxidation (NH₃-SCO) were prepared by impregnation method. The results of activity test indicated that the NH₃ conversion over 10%-Cu/SAPO-34 catalyst was nearly 100% at 300℃ and N₂ selectivity was more than 90% in the range of test temperature. Meanwhile, the characterization results of XRD, BET, UV-vis, H₂-TPR and XPS showed that the highly dispersed CuO species in Cu/SAPO-34 catalyst were the main active component. Furthermore, the aged 10%-Cu/SAPO-34 catalyst performed better NH₃-SCO activity at low temperature, while the N₂ selectivity dramatically decreased at 325℃, SAPO-34 zeolite crystallinity would deteriorate under hydrothermal treatment.
- NH₃-SCO,
- CuO,
- SAPO-34,
- hydrothermal treatment
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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

Catalytic performance and hydrothermal stability of Cu/SAPO-34 catalyst in the selective catalytic oxidation of NH3

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通讯作者: 陈斌, bchen63@163.com

Catalytic performance and hydrothermal stability of Cu/SAPO-34 catalyst in the selective catalytic oxidation of NH₃