Role of Water in the Catalytic Decomposition of Chlorinated Hydrocarbons over Chromium-Containing Catalysts

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

SON-KI IHM¹  DAE-CHUL KIM¹ 

[1]National Research Laboratory for Environmental Catalysis, Department of Chemical Engineering, Korea Advanced Institute of Science and Technology

关键词: Catalytic Oxidation;    Spinel-Type Oxides;    Cobalt Chromite;    VOC;    TCE;   

DOI  :  10.1252/jcej.34.143

来源: Maruzen Company Ltd

【 摘 要 】

References(20)Cited-By(1)A spinel-type catalyst of Cr and Co (CoCr2O4) has been prepared and tested in the oxidative decomposition of trichloroethylene (TCE). The CoCr2O4 catalyst shows a higher conversion and CO2 selectivity than the alumina-supported chromia. A rapid increase in activity of CoCr2O4 is observed with the addition of water vapor to the feed stream in contrast to the results of CrOx/γ-Al2O3 which shows a significant drop in activity when water was introduced. Water addition is also effective for the enhancement of CO2 selectivity as well in the case of CoCr2O4. The presence of water effectively suppresses the formation of tetrachloroethylene (PCE) byproduct.

【 授权许可】

Unknown