||Enhanced Formation of Dioxins and Furans from Combustion Devices by Addition of Trace Quantities of Bromine.
Lemieux, P. M. ;
Ryan, J. V. ;
||ARCADIS Geraghty and Miller, Inc., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Air pollution monitoring ;
Combustion products ;
Trace amounts ;
Combustion chemistry ;
Chemical reactivity ;
Polychlorinated dibenzofurans ;
Polychlorinated dibenzodioxins ;
Methylene chloride ;
Methylene bromide ;
Air pollution sources ;
PICs(Products of Incomplete Combustion)
||Some EPA libraries have a fiche copy filed under the call number shown.
||The paper discusses enhancing the formation of dioxins and furans from combustion devices by adding trace quantities of bromine (Br). Emissions of trichloroethylene and tetrachloroethylene, generated as PICs from the fuel-lean combustion of methylene chloride, were enhanced by up to 3 orders of magnitude by introducing Br in the form of methylene bromide at a constant halogen molar input rate with a 1:10 Br/chlorine (Cl) molar ratio. The two chlorinated PICs in question are both potential ring growth precursors, which could lead to enhanced formation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/PCDFs). The experiments described in this paper expand on the earlier work by examining the effect of trace amounts of Br on the formation of PCDDs/PCDFs, in addition to other chlorinated, brominated, and mixed bromochlooro organic PICs.
||Presented at the 1998 International Conference on Incineration and Thermal Treatment Technologies, Salt Lake City, UT., May 11-15, 1998. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
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|NTIS Title Notes
||Rept. for Jan-Mar 98.
||68A; 81A; 99F
||PC A03/MF A01