HIGH-TEMPERATURE SCRUBBING OF HALOGENATED COMPOUNDS

The objective of this work was to evaluate the performance of sodium c ompounds in removing halogenated organic and halogenated inorganic spe cies from gas streams. Tests were conducted which evaluated fluidized bed, packed bed, and post-flame injection of sodium compounds as metho ds for high-temperature scrubbing of halogenated compounds in the form of sodium halides. Methyl chloride destruction at a given temperature was promoted by the presence of sodium carbonate. Kinetic modeling of methyl chloride decomposition supports these experimental results. La boratory and pilot-scale testing demonstrated effective removal (99-99 .9 + %) of halogenated inorganic combustion byproducts using sodium ca rbonate in packed beds and fluidized beds within reaction times (0.2-3 .0 seconds), temperatures (450-1,050 degrees C), and other conditions which are in the practical range for application to waste incineration .