A pilot investigation on oxidation of ammonium sulfite by streamer corona plasma

被引：10

作者：

Hu, Xiaotu ^{[1
]}

Zhu, Tianle ^{[2
]}

Jiang, Xuedong ^{[1
]}

Wang, Yi ^{[1
]}

Qiu, Ruichang ^{[1
]}

Zhang, Hongdi ^{[3
]}

Li, Ruinian

Yan, Keping ^{[4
]}

机构：

[1] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China

[2] Beihang Univ, Dept Environm Engn, Beijing 100083, Peoples R China

[3] Guangdong J Tech Environm Sci Co Ltd, Guangzhou 510630, Guangdong, Peoples R China

[4] Zhejiang Univ, Dept Environm Sci, Hangzhou 310028, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2008年 / 139卷 / 03期

关键词：

streamer corona; flue gas desulfurization (FGD); ammonium FGD; sulfite oxidation; plasma catalysis;

D O I：

10.1016/j.cej.2007.08.019

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

For ammonia flue gas desulfurization (FGD), the sulfite to sulfate oxidation is very critical for industrial applications. This paper reports a novel corona plasma-induced oxidation technique to convert concentrated ammonium sulfites to sulfates in an aqueous solution. The streamer corona plasmas are generated with a do superimposed ac power source. Ammonium sulfite solution is sprayed in a reactor by using two-phase nozzles. When the sulfite concentration is around 1-3 mol L-1, the oxidation efficiency after one-cycle processing is in the range of 20-60%. Multiple-cycle. treatments can be used to improve the oxidation efficiency. The energy consumption is around 20 Wh mol(-1). Based on the present investigations, we anticipate that an industrial plasma-assisted ammonium FGD can be applied in industries. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：469 / 474

页数：6

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