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Home  >  Journal list  >  Journal of the Ceramic Society of Japan ( 2003 - 2007 )  >  Vol.114  No.1329 (May) (2006)  >  pp.408-410

Journal of the Ceramic Society of Japan ( 2003 - 2007 )
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Inhibition of Dioxin Formation in Flue Gas by Removal of Hydrogen Chloride Using Foaming Water Glass

Isao TSUYUMOTO1), Motoji KINOMURA1) and Kazuhiro KUZUHARA1)
1) Department of Environmental Chemistry, College of Environmental Engineering and Architecture, Kanazawa Institute of Technology

  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.

HCl, Dioxin, Water glass, Neutralization, Flue, PVC

Received: January 25, 2006
Accepted: April 19, 2006 , Published online: May 01, 2006
Copyright (c) 2006 The Ceramic Society of Japan



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