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DEACTIVATION OF H2S OF CR2O2 EMISSION CONTROL CATALYST FORCHLORINATED VOC DESTRUCTION
Citation:
Narayanan, S., H. Greene, AND C. Nunez. DEACTIVATION OF H2S OF CR2O2 EMISSION CONTROL CATALYST FORCHLORINATED VOC DESTRUCTION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-90/103.
Description:
The paper discusses one aspect of catalyst stability (i.e.,deactivation by poisoning) and the concomitant effects on catalystactivity and selectivity in the destruction of chlorinatedhydrocarbons. he study was initiated because nothing isdocumented of the effect of H2S or the other sulfurous poisons onthe performance of catalysts in the specific application ofoxidative destruction of chlorinated volatile organic compounds(VOCs). hromia (Cr2O3) catalyst, commercially popular for thedestruction of chlorinated hydrocarbons, was chosen for the studyof H2S poisoning effects, which concentrated on the activity,selectivity, and stability trends of the catalyst to H2S. tudyresults indicate that poisoning of the catalyst by H2S brings aboutmixed effects. hile activities generally decreased, theselectivities to HCl and chloroform became more favorable and theselectivity to CO2 decreased.