Fe-PILC for selective catalytic reduction of NO by propene under lean-burn conditions

LI Qian-cheng; SU Ya-xin; DONG Shi-lin; YUAN Min-hao; ZHOU Hao; DENG Wen-yi

Volume 46 Issue 10

Oct. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(10): 1240-1248

LI Qian-cheng, SU Ya-xin, DONG Shi-lin, YUAN Min-hao, ZHOU Hao, DENG Wen-yi. Fe-PILC for selective catalytic reduction of NO by propene under lean-burn conditions[J]. Journal of Fuel Chemistry and Technology, 2018, 46(10): 1240-1248.

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LI Qian-cheng, SU Ya-xin, DONG Shi-lin, YUAN Min-hao, ZHOU Hao, DENG Wen-yi. Fe-PILC for selective catalytic reduction of NO by propene under lean-burn conditions[J]. Journal of Fuel Chemistry and Technology, 2018, 46(10): 1240-1248.

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Fe-PILC for selective catalytic reduction of NO by propene under lean-burn conditions

1.
School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
2.
Changzhou Vocational Institude of Engineering, Changzhou 213164, China

Funds:

the National Natural Science Foundation of China 51278095

Jiangsu Province Prospective Joint Research Projects BY2015032-02

More Information

Corresponding author: SU Ya-xin, Tel:021-67792552, E-mail:suyx@dhu.edu.cn
Received Date: 2018-06-22
Rev Recd Date: 2018-08-22

Available Online: 2021-01-23

Publish Date: 2018-10-10

Abstract

Abstract

Iron-pillared clays (Fe-PILC) were prepared by ion-exchange method and the iron species act as the pillaring components and active components and their performances for selective catalytic reduction of NO by propene were investigated under lean-burn conditions. XRD, N₂ adsorption/desorption, H₂-TPR, UV-vis, Py-FTIR, etc were used to characterize the catalysts. The results showed that 1.0Fe-PILC reduced more than 98% of NO at 450-600℃ and the selectivity for N₂ reached 97%. The catalytic activity of the 1.0Fe-PILC was slightly influenced by water vapor and SO₂. XRD and N₂ adsorption/desorption characterization results showed that the iron species entered the Na-Mont interlayer and formed much larger specific surface area and pore volume. H₂-TPR results indicated that Fe-PILC had a strong reduction ability at about 400 ℃, which represented the reduction of Fe³⁺→Fe²⁺. UV-vis results showed that the denitrification activity of Fe-PILC was positively correlated with the iron oxide oligomer Fe_xO_y. Py-FTIR results revealed that Lewis acid and Brønsted acid sites formed on the Fe-PILC surface. The main catalytic activity center of C₃H₆ and NO reaction was the Lewis acid site.
- lean-burn conditions,
- Fe-PILC,
- C₃H₆,
- selective catalytic reduction,
- NO

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References(37)

References

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