||Mechanistic Steps in the Production of PCDD and PCDF during Waste Combustion.
Gullett, B. K. ;
Bruce, K. R. ;
Beach, L. O. ;
Drago, A. M. ;
||Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Air pollution control ;
Chemical reactions ;
Municipal wastes ;
Condensation reactions ;
Reaction kinetics ;
High temperature tests ;
Copper inorganic compounds ;
Surface chemistry ;
PCDD(Polychlorinated dibenzo-p-dioxin) ;
PCDF(Polychlorinated dibenzofuran) ;
Chemical reaction mechanisms
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||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.)
||Pub. in Chemosphere, v25 n7-10 p1387-1392 1992. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|NTIS Title Notes
||Journal article Oct 90-Dec 91.
||Reprint: Mechanistic Steps in the Production of PCDD and PCDF during Waste Combustion.
||68C; 68A; 99D; 99F; 81A
||PC A02/MF A01