Journal of the Ceramic Society of Japan
Online ISSN : 1882-1022
Print ISSN : 0914-5400
ISSN-L : 0914-5400
Technical reports
Inhibition of Dioxin Formation in Flue Gas by Removal of Hydrogen Chloride Using Foaming Water Glass
Isao TSUYUMOTOMotoji KINOMURAKazuhiro KUZUHARA
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2006 Volume 114 Issue 1329 Pages 408-410

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Abstract

We developed a foaming water glass (FWG), a kind of alkaline sodium silicate hydrate (lNa2O•mSiO2nH2O) and applied it to a HCl remover and a dioxin inhibitor in flue of waste incinerators. HCl emissions from PVC (polyvinyl chloride) proved to decrease substantially by incinerating the PVC with the FWG, indicating that the FWG is a useful HCl remover. HCl concentrations in flues of industrial waste incinerators were also reduced with larger efficiency than the conventional calcium hydroxide particles by injecting a diluted FWG solution as a cooling water. The reduction of HCl generation led to the decrease in dioxin concentrations in flue gas and fly ash.

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© 2006 The Ceramic Society of Japan
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