Catalytic performance and hydrothermal stability of Cu/SAPO-34 catalyst in the selective catalytic oxidation of NH<sub>3</sub>

XIA Fu-ting; ZHANG Jin-hui; YANG Yun-han; YANG Cui-cui; LI Xiang-hua; SONG Zhong-xian; ZHANG Qiu-lin; PENG Jin-hui

Volume 46 Issue 3

Mar. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(3): 328-336

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.

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.

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.

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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

Funds:

The project was supported by the National Natural Science Foundation of China 21567030

The project was supported by the National Natural Science Foundation of China 11447191

the National Program on Key Basic Research Project of China 973 program

the National Program on Key Basic Research Project of China 2014CB643404

Natural Science Fund Item of Yunnan Province 2013FD033

Received Date: 2017-09-13
Rev Recd Date: 2018-01-19

Available Online: 2021-01-23

Publish Date: 2018-03-10

Abstract

Abstract

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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References(35)

References

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