Simultaneous removal of NO and CO over Ni-Ce bifunctional catalyst supported by modified activated coke at oxygen-rich condition

WANG Shu-yao; CHENG Hao; JI Mao; ZHANG Xue-bin; WANG Shu-dong; LI Chao; WANG Ming-deng; SUN Gang-sen

doi:10.1016/S1872-5813(21)60192-5

Volume 50 Issue 7

Aug. 2022

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Article Navigation > Journal of Fuel Chemistry and Technology > 2022 > 50(7): 877-883

WANG Shu-yao, CHENG Hao, JI Mao, ZHANG Xue-bin, WANG Shu-dong, LI Chao, WANG Ming-deng, SUN Gang-sen. Simultaneous removal of NO and CO over Ni-Ce bifunctional catalyst supported by modified activated coke at oxygen-rich condition[J]. Journal of Fuel Chemistry and Technology, 2022, 50(7): 877-883. doi: 10.1016/S1872-5813(21)60192-5

Citation:

WANG Shu-yao, CHENG Hao, JI Mao, ZHANG Xue-bin, WANG Shu-dong, LI Chao, WANG Ming-deng, SUN Gang-sen. Simultaneous removal of NO and CO over Ni-Ce bifunctional catalyst supported by modified activated coke at oxygen-rich condition[J]. Journal of Fuel Chemistry and Technology, 2022, 50(7): 877-883. doi: 10.1016/S1872-5813(21)60192-5

Citation:

WANG Shu-yao, CHENG Hao, JI Mao, ZHANG Xue-bin, WANG Shu-dong, LI Chao, WANG Ming-deng, SUN Gang-sen. Simultaneous removal of NO and CO over Ni-Ce bifunctional catalyst supported by modified activated coke at oxygen-rich condition[J]. Journal of Fuel Chemistry and Technology, 2022, 50(7): 877-883. doi: 10.1016/S1872-5813(21)60192-5

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Simultaneous removal of NO and CO over Ni-Ce bifunctional catalyst supported by modified activated coke at oxygen-rich condition

doi: 10.1016/S1872-5813(21)60192-5

WANG Shu-yao^{1, 2
,},
CHENG Hao^{1, 2
,
,},
JI Mao^{1, 2},
ZHANG Xue-bin¹,
WANG Shu-dong^{1, 2},
LI Chao³,
WANG Ming-deng³,
SUN Gang-sen³

1.
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
ACRE Coking and Refractory Engineering Consulting Corporation (Dalian), MCC, Dalian 116000, China

Funds: The project was supported by the Dalian Science and Technology Major Project (2019ZD16SN007)

Received Date: 2021-11-23
Accepted Date: 2022-01-02
Rev Recd Date: 2021-12-22

Available Online: 2022-01-20

Publish Date: 2022-08-01

Abstract

Abstract

The modified activated coke (AC-N) supported Ni-Ce transition metal catalyst prepared by incipient-wetness impregnation method can simultaneously catalyze the ammonia selective catalytic reduction (NH₃-SCR) reaction and CO oxidation reaction, realizing the removal of NO and CO under low temperature and oxygen-rich conditions. The Ni-Ce /AC-N catalyst can achieve high-efficiency conversion of NO and CO at 175–250 ℃, and the conversion rates of NO and CO are both above 95% in this temperature range. After modified by nitric acid, the active coke support has a stronger interaction with metal components, which is conducive to better dispersion of the active components on the catalyst surface, and improves the specific surface area and redox capacity of the catalyst. The synergistic effect between Ni and Ce results in more Ni²⁺ and Ce³⁺ species on the catalyst surface, which is beneficial to the improvement of catalytic activity.
- SCR,
- CO,
- catalytic oxidation,
- transition metal,
- modified active coke

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References(19)

References

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