Ceo2 Based Catalysts for the Treatment of Propylene in Motorcycle’s Exhaust Gases

Materials

Phuong Thi Mai Pham¹  Thang Le Minh¹  Tien The Nguyen¹  Isabel Van Driessche² 

[1]Department of Organicsynthesis and Petrochemistry, Faculty of Chemical Technology, Hanoi University of Technology, 1 Dai Co Viet, Hanoi 10000, Vietnam

[2]Sol-gel Centre for Research on Inorganic Powders and Thin films Synthesis (SCRiPTS), Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 291-S3, 9000 Gent, Belgium

关键词: ceria;    zirconia;    tin oxide;    cobalt oxide;    oxidation;    propylene;    oxides;    exhaust gases;   

DOI  :  10.3390/ma7117379

来源: mdpi

【 摘 要 】

In this work, the catalytic activities of several single metallic oxides were studied for the treatment of propylene, a component in motorcycles’ exhaust gases, under oxygen deficient conditions. Amongst them, CeO₂ is one of the materials that exhibit the highest activity for the oxidation of C₃H₆. Therefore, several mixtures of CeO₂ with other oxides (SnO₂, ZrO₂, Co₃O₄) were tested to investigate the changes in catalytic activity (both propylene conversion and CO₂ selectivity). Ce_0.9Zr_0.1O₂, Ce_0.8Zr_0.2O₂ solid solutions and the mixtures of CeO₂ and Co₃O₄ was shown to exhibit the highest propylene conversion and CO₂ selectivity. They also exhibited good activities when tested under oxygen sufficient and excess conditions and with the presence of co-existing gases (CO, H₂O).

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.