||Formation of Polychlorinated Dibenzofurans and Polychlorinated Naphthalenes from Municipal Waste Incinerators.
Gullett, B. K.;
||National Inst. for Resources and Environment, Ibaraki (Japan). ;Oak Ridge Inst. for Science and Education, TN.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Chlorine aromatic compounds;
Polycyclic aromatic hydrocarbons;
Air pollution control;
Fluid bed combustion;
Municipal waste incinerators;
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||The paper gives results of a study of the formation of mechanism of polychlorinated dibenzofurans (PCDFs) and polychlorinated naphthalenes (PCNs), with graphite and polycyclic aromatic hydrocarbons (PAHs) as starting carbon sources and copper chloride as catalyst. Polychlorinated dibenzo-p-dioxins (PCDDs) were minor products. The homologue distribution from graphite has octachloro-dibenzofuran (O8CDF) and octachloro-dibenzo-p-dioxin (O8CDD) as main products, while that from PAH were sensitive to the catalyst and reaction temperature. It was suggested that PCDFs and PCNs can be released directly from the carbon sources and that their isomer patterns from perylene and benzo(ghi)perylene, respectively were similar to those from some fluid bed incinerators. The yield of PCDFs from perylene was higher than from PAH, phenol, and activated charcoal, which implied that perylene may play an important role for PCDF formation in these fluid bed incinerators. A dechlorination model succeeded in predicting the consistent isomer patterns from most of the municipal waste incinerators.
||Presented at the International Conference on Combustion, Incineration/Pyrolysis and Emission Control, Seoul, Korea, June 6-10, 2000. Prepared in cooperation with Oak Ridge Inst. for Science and Education, TN. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
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|NTIS Title Notes
||Rept. for Apr 99-Apr 00.
||PC A03/MF A01