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Main Title Development of Transition Metal Oxide-Zeolite Catalysts to Control Chlorinated VOC Air Emissions.
Author Vogel, C. A. ; Greene., H. L. ;
CORP Author Akron Univ., OH. Dept. of Chemical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1994
Year Published 1994
Report Number EPA-R-819695-01; EPA/600/A-94/029;
Stock Number PB94-155330
Additional Subjects Volatile organic compounds ; Ion exchange resins ; Air pollution control ; Chlorine ; Catalysts ; Sorption ; Aluminum ; Silicon ; Low temperature tests ; Adsorption ; Chemical reactions ; Oxidation reduction reactions ; Waste water ; Transition metal oxide ; Silicalites ; Zeolite
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB94-155330 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
The paper discusses the development of transition metal oxide (TMO)-zeolite oxidation catalysts to control chlorinated volatile organic compounds (CVOC) air emissions. Research has been initiated to enhance the utility of these catalysts by the development of a sorption-catalyst system. Zeolites with a high Al/Si ratio (e.g., Y-zeolite) provide active acid exchange sites. The exchanged and calcined zeolite is impregnated with the same or different metal and calcined to form the TMO film. These TMO-zeolites provide shape selectivity and three types of active sites: unexchanged HY (Bronsted) acid active sites, highly active exchanged sites, and impregnated TMO sites. They can achieve over 95% destruction efficiency at relatively low temperatures (i.e., 300 to 350C) of a humid, low concentration CVOC, and are very resistive to poisoning. In the sorption-catalyst system, the zeolite first would physically adsorb the CVOC at room temperature.