NDLI: Effects of Water Vapor and Ammonia on SO2 Removal from Flue Gases Using Pulsed Corona Discharge

Content Provider	Springer Nature Link
Author	Yimin, Zhu Chae, J. O. Kim, K. Y. Kim, K. O. Park, Y. K.
Copyright Year	2002
Abstract	In the study of SO$_{2}$ removal using pulsed corona discharge, there exists a serious confusion, that is, which kind of reactions, the thermal chemical reactions or the radical chemical reactions, plays a dominant role in SO$_{2}$ removal? In this work, through some experiments together with qualitative analyses, this confusion has been clarified. Pulsed corona discharge induces the radical reactions that mainly contribute to oxidizing SO$_{2}$. High relative humidity in flue gas is a basis of the heterogeneous radical reactions. Ammonia not only is an additive but also accelerates the oxidization of SO$_{2}$. Only by synergistic effects of pulsed corona discharge, relative humidity and ammonia, can it be effective to oxidize SO$_{2}$ via the heterogeneous radical reactions. In the SO$_{2}$ removal, the essence of heterogeneous reactions is the radical reactions both in gas phase and at aerosol surface, which is the reason of the oxidization of SO$_{2}$. It has also been evaluated that in an optimum process the oxidization of SO$_{2}$ in gas phase is responsible for about 30%, and at the aerosol surface is about 50%, while the thermal chemical reactions result in about 20%, of all the removed SO$_{2}$.
Starting Page	187
Ending Page	195
Page Count	9
File Format	PDF
ISSN	02724324
Journal	Plasma Chemistry and Plasma Processing
Volume Number	22
Issue Number	1
e-ISSN	15728986
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2002-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inorganic Chemistry Characterization and Evaluation Materials Mechanics Nuclear Physics, Heavy Ions, Hadrons Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Surfaces, Coatings and Films Condensed Matter Physics Chemical Engineering

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