Effect of metal additives on the catalytic performance of MnOx-CeO2 supported on activated carbon honeycomb in NO removal at low temperature

WANG Yan-li; LI Xiao-xiao; ZHAN Liang; LI Cui; QIAO Wen-ming; LING Li-cheng

Volume 42 Issue 11

Nov. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(11): 1365-1371

WANG Yan-li, LI Xiao-xiao, ZHAN Liang, LI Cui, QIAO Wen-ming, LING Li-cheng. Effect of metal additives on the catalytic performance of MnOx-CeO2 supported on activated carbon honeycomb in NO removal at low temperature[J]. Journal of Fuel Chemistry and Technology, 2014, 42(11): 1365-1371.

Citation:

WANG Yan-li, LI Xiao-xiao, ZHAN Liang, LI Cui, QIAO Wen-ming, LING Li-cheng. Effect of metal additives on the catalytic performance of MnO_x-CeO₂ supported on activated carbon honeycomb in NO removal at low temperature[J]. Journal of Fuel Chemistry and Technology, 2014, 42(11): 1365-1371.

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Effect of metal additives on the catalytic performance of MnO_x-CeO₂ supported on activated carbon honeycomb in NO removal at low temperature

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China

Received Date: 2014-05-20
Rev Recd Date: 2014-08-04
Publish Date: 2014-11-30

Abstract

Abstract

The effect of FeO_x and SnO_x additives on the catalytic performance of MnO_x-CeO₂ supported on activated carbon honeycomb (MnO_x-CeO₂/ACH) in NO removal at low temperature was investigated. The results indicated that the addition of FeO_x can improve the distribution of manganese and cerium oxides on the ACH support and enhance the resistance to SO₂ poisoning in NO removal; the activity of FeO_x-modified MnO_x-CeO₂/ACH increases with the increasing reaction temperature from 80 ℃ to 200 ℃. Meanwhile, the MnO_x-CeO₂/ACH catalyst modified with SnO_x exhibits high NO removal activity and good resistance to SO₂ poisoning at relatively high temperatures; over SnO_x-modified MnO_x-CeO₂/ACH at 250 ℃, NO conversion decreases slightly from 98.6% in the absence of SO₂ to 87.8% in 700 min upon the introduction of SO₂ in the feed.
- activated carbon honeycomb,
- MnO_x-CeO₂,
- selective catalytic reduction,
- NO removal,
- additive

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References(14)

References

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