Simultaneous Removal of SO2 and NO from Flue Gas Using Multicomposite Active Absorbent
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- 作者：Yi Zhao ; Yinghui Han ; Cheng Chen
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2012
- 出版时间：January 11, 2012
- 年：2012
- 卷：51
- 期：1
- 页码：480-486
- 全文大小：361K
- 年卷期：v.51,no.1(January 11, 2012)
- ISSN：1520-5045
文摘
A multicomposite active absorbent was prepared using the liquid-phase complex of NaClO2 and NaClO as well as solid-phase slake lime to simultaneous desulfurization and denitrification at a flue gas circulating fluidized bed (CFB). The effects of influencing factors on the removal efficiencies of SO2 and NO were investigated. Removal efficiencies of 96.5% for SO2 and 73.5% for NO were obtained, respectively, under the optimal experimental conditions. The characterization of the spent absorbent was carried out by using energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and chemical analysis methods, from which the simultaneous removal mechanism of SO2 and NO based on this absorbent was proposed.