Selective catalytic reduction of NO by methane over the Co/MOR catalysts in the presence of oxygen

WANG Hong; LI Bin; LU Xue-bin; LI Cui-qing; DING Fu-chen; SONG Yong-ji

Volume 43 Issue 09

Sep. 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(09): 1106-1112

WANG Hong, LI Bin, LU Xue-bin, LI Cui-qing, DING Fu-chen, SONG Yong-ji. Selective catalytic reduction of NO by methane over the Co/MOR catalysts in the presence of oxygen[J]. Journal of Fuel Chemistry and Technology, 2015, 43(09): 1106-1112.

Citation:

WANG Hong, LI Bin, LU Xue-bin, LI Cui-qing, DING Fu-chen, SONG Yong-ji. Selective catalytic reduction of NO by methane over the Co/MOR catalysts in the presence of oxygen[J]. Journal of Fuel Chemistry and Technology, 2015, 43(09): 1106-1112.

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Selective catalytic reduction of NO by methane over the Co/MOR catalysts in the presence of oxygen

1.
Department Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2.
CNOOC Tianjin Research and Design Institute of Chemical Industry, Tianjin 300131, China;
3.
China Huanqiu Contracting & Engineering Company Liaoning Branch, Fushun 113006, China

Funds: National Natural Science Foundation of China (21342009); State Key Laboratory of Heavy Oil Processing(SKLHOP201501); Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality (PHR20110517).

Received Date: 2015-05-12
Rev Recd Date: 2015-07-08
Publish Date: 2015-09-30

Abstract

Abstract

A series of Co/MOR catalysts were prepared by impregnation method and used in the selective catalytic reduction of nitric oxide with methane (CH₄-SCR). These catalysts were characterized by XRD, BET, TG-MS, H₂-TPR, NH₃-TPD and NO-TPD; their performance in the CH₄-SCR of NO was investigated. The results showed that cobalt species exist as Co₃O₄ spinal in the Co/MOR catalysts; the acidity and redox and NO absorption/desorption ability of the Co/MOR catalysts are changed after the incorporation of cobalt in MOR zeolite, in comparison with pure MOR zeolite. The catalytic performance of Co/MOR is closely related to its redox and NO adsorption/desorption ability, which are dependent on the cobalt loading. The Co(10)/MOR catalyst with a cobalt loading of 10% exhibits high activity in the CH₄-SCR of NO; over it the conversion of nitric oxide reaches 54.2% at 330 ℃.
- nitric oxide,
- methane,
- selective catalytic reduction,
- cobalt oxide,
- mordenite

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References(29)

References

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