New LSU SRP Publication on the Contribution of Aluminas and Aluminosilicates to the Formation of PCDD/Fs on Fly Ashes
Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) are a particularly toxic class of compounds that originate from a variety of anthropogenic sources. Over 70% of PCDD/Fs have been shown to form in the post flame cool zone of combustion systems between 200 and 600 degrees celsius. Previous research has shown that laboratory made fly ash surrogates composed of transition metal oxides on silica powder mimiced the real world ability of fly ashes to produce PCDD/Fs.
This research looked at aluminas and aluminosilicates which are a major component of fly ash and determined that types of both aluminas and aluminosilicates are active catalytic surfaces in the formation of PCDD/Fs. View the article here.