Effects of SO<sub>2</sub> and NO on removal of elemental mercury using a TiO<sub>2</sub>-aluminum silicate fiber

YUAN Yuan; ZHANG Jun-ying; ZHAO Yong-chun; WANG Yu-xiang; ZHENG Chu-guang

Volume 40 Issue 05

May 2012

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Article Navigation > Journal of Fuel Chemistry and Technology > 2012 > 40(05): 630-635

YUAN Yuan, ZHANG Jun-ying, ZHAO Yong-chun, WANG Yu-xiang, ZHENG Chu-guang. Effects of SO2 and NO on removal of elemental mercury using a TiO2-aluminum silicate fiber[J]. Journal of Fuel Chemistry and Technology, 2012, 40(05): 630-635.

Citation:

YUAN Yuan, ZHANG Jun-ying, ZHAO Yong-chun, WANG Yu-xiang, ZHENG Chu-guang. Effects of SO₂ and NO on removal of elemental mercury using a TiO₂-aluminum silicate fiber[J]. Journal of Fuel Chemistry and Technology, 2012, 40(05): 630-635.

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Effects of SO₂ and NO on removal of elemental mercury using a TiO₂-aluminum silicate fiber

State Key Lab of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China

Funds: 国家自然科学基金(40972102,50936001,51021065);国家重点基础研究发展规划(973计划,2011CB201500)。

Received Date: 2011-07-02
Rev Recd Date: 2011-10-19
Publish Date: 2012-05-31

Abstract

Abstract

A novel TiO₂-aluminum silicate fiber nanocomposite was prepared by sol-gel method, and used to remove the elemental mercury from a simulated coal-fired flue gas under UV irradiation at a wavelength of 253.7 nm. The effects of SO₂, NO and temperature on the photocatalytic removal of mercury were tested. The result shows that SO₂ has a stimulative effect on the photocatalytic removal of mercury at ambient temperature. The mercury removal can reach to 93% when the SO₂ concentration is 1 200 μg/m³. However, NO shows an inhibitory effect on the elemental mercury removal, and the removal efficiency decreases with the increasing of NO concentration. At high temperature, the effects of SO₂ and NO on the photocatalytic removal of mercury are the same as those at the normal temperature. The mercury removal efficiency decreases as the temperature increases. Elevating temperature shows an inhibitory effect on the photocatalytic removal of mercury.
- TiO₂ nanocomposite,
- photocatalysis,
- SO₂,
- NO,
- mercury removal

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References(23)

References

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