Carbon nanotubes loaded with vanadium oxide for reduction NO with NH3 at low temperature

doi:10.1016/j.cjche.2014.07.003

›› 2015, Vol. 23 ›› Issue (3): 516-519.DOI: 10.1016/j.cjche.2014.07.003

• Catalysis, Kinetics and Reaction Engineering • Previous Articles Next Articles

Carbon nanotubes loaded with vanadium oxide for reduction NO with NH₃ at low temperature

Shuli Bai^1,2, Shengtao Jiang¹, Huanying Li³, Yujiang Guan¹

1 College of Life Science, Taizhou University, Taizhou 318000, China;
2 Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou 318000, China;
3 College of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China

Received:2013-12-27 Revised:2014-07-28 Online:2015-04-03 Published:2015-03-28
Supported by:
Supported by the National Natural Science Foundation of China (21006065) and the Zhejiang Provincial Natural Science Foundation of China (Y5100009).

Carbon nanotubes loaded with vanadium oxide for reduction NO with NH₃ at low temperature

Shuli Bai^1,2, Shengtao Jiang¹, Huanying Li³, Yujiang Guan¹

1 College of Life Science, Taizhou University, Taizhou 318000, China;
2 Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou 318000, China;
3 College of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China

通讯作者: Shuli Bai, Huanying Li
基金资助:
Supported by the National Natural Science Foundation of China (21006065) and the Zhejiang Provincial Natural Science Foundation of China (Y5100009).

Abstract

Abstract: The catalytic activity of carbon nanotubes-supported vanadium oxide (V₂O₅/CNTs) catalysts in the selective catalytic reduction (SCR) of NO with NH₃ at low temperatures (≤250℃) was investigated. The effects of V₂O₅ loading, reaction temperature, and presence of SO₂ on the SCR activity were evaluated. The results show that V₂O₅/CNTs catalysts exhibit high activity for NO reduction with NH₃ at low-temperatures. The catalysts also show very high stability in the presence of SO₂.More interestingly, their activities are significantly promoted instead of being poisoned by SO₂. The promoting effect of SO₂ is distinctly associatedwith V₂O₅ loading, particularly maximized at low V₂O₅ loading, which indicated the role of CNTs support in this effect. The promoting effect of SO₂ at lowtemperatures suggests that V₂O₅/CNTs catalysts are promising catalyticmaterials for low-temperature SCR reactions.

Key words: Selective catalytic reduction, V₂O₅/CNTs catalyst, Flue gas, Physic-chemical property

摘要： The catalytic activity of carbon nanotubes-supported vanadium oxide (V₂O₅/CNTs) catalysts in the selective catalytic reduction (SCR) of NO with NH₃ at low temperatures (≤250℃) was investigated. The effects of V₂O₅ loading, reaction temperature, and presence of SO₂ on the SCR activity were evaluated. The results show that V₂O₅/CNTs catalysts exhibit high activity for NO reduction with NH₃ at low-temperatures. The catalysts also show very high stability in the presence of SO₂.More interestingly, their activities are significantly promoted instead of being poisoned by SO₂. The promoting effect of SO₂ is distinctly associatedwith V₂O₅ loading, particularly maximized at low V₂O₅ loading, which indicated the role of CNTs support in this effect. The promoting effect of SO₂ at lowtemperatures suggests that V₂O₅/CNTs catalysts are promising catalyticmaterials for low-temperature SCR reactions.

关键词: Selective catalytic reduction, V₂O₅/CNTs catalyst, Flue gas, Physic-chemical property

Shuli Bai, Shengtao Jiang, Huanying Li, Yujiang Guan. Carbon nanotubes loaded with vanadium oxide for reduction NO with NH₃ at low temperature[J]. , 2015, 23(3): 516-519.

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Carbon nanotubes loaded with vanadium oxide for reduction NO with NH₃ at low temperature

Carbon nanotubes loaded with vanadium oxide for reduction NO with NH₃ at low temperature

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