TY - JOUR
T1 - Study on catalytic combustion of benzene over cerium based catalyst supported on cordierite
AU - Huang, Qiong
AU - Yan, Xiaokang
AU - Li, Bing
AU - Chen, Yingwen
AU - Zhu, Shemin
AU - Shen, Shubao
PY - 2013/2
Y1 - 2013/2
N2 - A series of MnCeOx catalysts supported on cordierite honeycomb (Cord) were prepared by a combustion synthesis method using Mn(NO 3)2, Ce(NO3)2·6H2O and citric acid. The effect of the molar ratio of Mn/Ce, calcination time, the amount of citric acid and the effect of water vapor on the catalytic properties for the complete oxidation of benzene were investigated. These catalysts were characterized by X-ray diffraction (XRD), H2 temperature-programmed reduction (H2-TPR), O2 temperature programmed desorption (O2-TPD) and scanning electron microscopy (SEM) techniques. The results indicated that the MnCeOx/Cord catalyst with Mn/Ce molar ratio of 1:1, calcining for 7 h and Mn+/(citric acid) molar ratio of 6 exhibited the highest catalytic activity. When the concentration of benzene was 1500 ppm and the gaseous hourly space velocity was 20000 h-1, the conversion of toluene was 99.1% at the reaction temperature of 300 -C.
AB - A series of MnCeOx catalysts supported on cordierite honeycomb (Cord) were prepared by a combustion synthesis method using Mn(NO 3)2, Ce(NO3)2·6H2O and citric acid. The effect of the molar ratio of Mn/Ce, calcination time, the amount of citric acid and the effect of water vapor on the catalytic properties for the complete oxidation of benzene were investigated. These catalysts were characterized by X-ray diffraction (XRD), H2 temperature-programmed reduction (H2-TPR), O2 temperature programmed desorption (O2-TPD) and scanning electron microscopy (SEM) techniques. The results indicated that the MnCeOx/Cord catalyst with Mn/Ce molar ratio of 1:1, calcining for 7 h and Mn+/(citric acid) molar ratio of 6 exhibited the highest catalytic activity. When the concentration of benzene was 1500 ppm and the gaseous hourly space velocity was 20000 h-1, the conversion of toluene was 99.1% at the reaction temperature of 300 -C.
UR - http://www.scopus.com/inward/record.url?scp=84875145929&partnerID=8YFLogxK
U2 - 10.1016/S1002-0721(12)60245-2
DO - 10.1016/S1002-0721(12)60245-2
M3 - 文章
AN - SCOPUS:84875145929
SN - 1002-0721
VL - 31
SP - 124
EP - 129
JO - Journal of Rare Earths
JF - Journal of Rare Earths
IS - 2
ER -