Record Display for the EPA National Library Catalog


Main Title Mechanistic Steps in the Production of PCDD and PCDF during Waste Combustion.
Author Gullett, B. K. ; Bruce, K. R. ; Beach, L. O. ; Drago, A. M. ;
CORP Author Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1992
Year Published 1992
Report Number EPA-68-D0-0141; EPA/600/J-94/056;
Stock Number PB94-143799
Additional Subjects Air pollution control ; Chlorohydrocarbons ; Synthesis(Chemistry) ; Chemical reactions ; Municipal wastes ; Catalysis ; Condensation reactions ; Reaction kinetics ; Furans ; Dioxin ; High temperature tests ; Copper ; Copper inorganic compounds ; Surface chemistry ; Reprints ; PCDD(Polychlorinated dibenzo-p-dioxin) ; PCDF(Polychlorinated dibenzofuran) ; Chemical reaction mechanisms
Library Call Number Additional Info Location Last
NTIS  PB94-143799 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Research has shown that synthesis of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) during municipal waste combustion can proceed through a three step mechanism including (1) production of Cl2 from a metal-catalyzed reaction of HCl and O2, (2) Cl2 chlorination of aromatic rings through substitution reactions, and (3) formation of dual ring structures by a second metal-catalyzed reaction. Formation of the dual ring PCDD structure, likely through condensation reactions of chlorophenols, is enhanced up to three orders of magnitude in the presence of metal catalysts, such as Cu(II), reaching a maximum around 400 degs C. (Copyright (c) Pergamon Press Ltd. 1992.)