Inhibition of chlorinated dibenzo-p-dioxin formation on municipal incinerator fly ash by using catalyst inhibitors
1989; Elsevier BV; Volume: 19; Issue: 8-9 Linguagem: Inglês
10.1016/0045-6535(89)90092-1
ISSN1879-1298
AutoresL.C. Dickson, Dieter Lenoir, O. Hutzinger, K.P. Naikwadi, F.W. Karasek,
Tópico(s)Mercury impact and mitigation studies
ResumoFly ash-catalysed surface reactions are probably the most important mechanism in the formation of chlorinated dibenzo-p-dioxins (PCDD) and related compounds in municipal incinerators. The introduction of a suitable catalyst inhibitor should decrease the yield and change the distribution of PCDD formed on the fly ash. The addition of catalyst inhibitors containing amino- and hydroxy-functional groups to the fly ash surface greatly inhibited the catalytic activity of the fly ash. 2-aminoethanol and triethanolamine were the most effective catalyst inhibitors. The significance of these results to controlling the emissions of PCDD from municipal refuse incinerators is discussed.
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