Journal of the Air & Waste Management Association · 1997 · 16 citations · 3 references
EngineeringChemical EngineeringEnvironmental EngineeringBuilding MaterialsEnvironmental ChemistryHazardous Waste ManagementCementitious MaterialsChemical SafetyEnvironmental DegradationCement ChemistryCement DegradationChemical Attack On CementChlorinated HydrocarbonsOperating ConditionsRemoval Of Hydrogen ChlorideThermal OxidationThermal Treatment Technologies
Abstract One of the thermal oxidation technologies recommended by the United Nations Environment Programme (UNEP) is destruction of chlorofluorocarbons (CFCs) in a cement kiln. The destruction of CFC12, CFC11 and CFC113 was studied in a cement kiln plant in actual commercial operation. CFCs were completely destroyed in the kiln under normal operating conditions. Hydrogen fluoride and hydrogen chloride generated by CFC decomposition were absorbed by cement materials. No formation of toxic ha-logenated organic compounds, such as polychlorinated dibenzo-p-dioxins or dibenzofurans (PCDDs/PCDFs), was observed in the CFC incineration.
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