پديدآورندگان :
Peyrovi M. H. Faculty of Chemistry and Petroleum Sciences, Department of Petroleum Chemistry and Catalysis, University of Shahid Beheshti, Tehran, 1983963113, Iran , Atashia N. Faculty of Chemistry and Petroleum Sciences, Department of Petroleum Chemistry and Catalysis, University of Shahid Beheshti, Tehran, 1983963113, Iran , Parsafard N. n-parsafard@kub.ac.ir Kosar University of Bojnord, Department of Applied Chemistry, North Khorasan, 9415615458, Iran
كليدواژه :
Toluene oxidation , Conversion , Selectivity , meso , Porous catalysts , Catalytic deactivation
چكيده فارسي :
Volatile organic compounds are the main air pollutants emitted from petrochemical and allied industries especially due to the photochemical reaction in the atmosphere. Total oxidation of VOCs is one of the most promising techniques in order to operate at low temperatures. In this work, five weight percentages of Pt/HZSM5(x)-HMS catalysts were used for the oxidation of toluene. These catalysts were investigated for a period of time for the oxidation of toluene continuously at 350 °C for more than 60 h. The catalytic activity and selectivity were found to be a function of the time of feed stream. The results show that the decrease in catalytic activity was related to an increase in coke deposition over the catalytic surface. Among these prepared catalysts, Pt/HZSM5(30)-HMS has the low coke deposition than others.
