Catalytic combustion of soot on KNO3/ZrO2 catalysts.: Effect of potassium nitrate loading on activity

被引：34
作者：
Carrascull, AL
Ponzi, MI
Ponzi, EN
机构：
[1] Natl Univ La Plata, CONICET, CINDECA, RA-1900 La Plata, BA, Argentina
[2] UNSL, CONICET, INTEQUI, Fac Ingn & Ciencias Econ Sociales, RA-5730 San Luis, Argentina
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2003年 / 42卷 / 04期
关键词：
D O I：
10.1021/ie020482i
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Co-KNO3-ZrO2 and Co-ZrO2 were prepared. The concentration effect of potassium nitrate on the activity was studied for the oxidation reaction of soot. Catalysts were characterized using the techniques BET, XRD, DSC, TPR, and SEM and the catalytic activity was measured in a microbalance. An important decrease of the combustion temperature of soot is observed in experiments carried out with zirconium oxide alone and also a significant enhancement of the catalytic combustion rate of soot on KNO3/ZrO2 catalysts. The activity increase can be attributed to the alkaline metal ion and also to the increase of the catalyst/soot contact by the molten potassium nitrate.
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收藏
页码：692 / 697
页数：6
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