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Journal of Zhejiang University SCIENCE B

ISSN 1673-1581(Print), 1862-1783(Online), Monthly

2006 Vol.7 No.1 P.38-42

Study on NO2 absorption by ascorbic acid and various chemicals

Li Wei, Wu Cheng-zhi, Fang He-liang, Shi Yao, Lei Le-cheng

Institute of Environmental Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Catalysis, Zhejiang University, Hangzhou 310028, China

yaoshi@zju.edu.cn

Abstract: Study on NO2 absorption aimed at seeking a better NO2 absorption chemical at pH 4.5~7.0 for application to existing wet flue gas desulfurization (FGD). The results from the double-stirred reactor indicated that ascorbic acid has very high absorption rate at this pH range. The rate constant of ascorbic acid reaction with NO2 (0~1000×10−6 mol/mol) is about 3.54×106 mol/(L∙s) at pH 5.4~6.5 at 55 °C.

Key words: NO2, Absorption, Rate constant, Ascorbic acid


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DOI:

10.1631/jzus.2006.B0038

CLC number:

X511

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Received:

2005-08-10

Revision Accepted:

2005-09-29

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