Catalytic combustion of toluene over platinum supported on Ce–Zr–O solid solution modified by Y and Mn

A series of CeO 2–ZrO 2 mixed oxides were prepared using coprecipitation method and characterized by BET, oxygen storage capacity (OSC), X-ray diffraction (XRD) and H 2-temperature-programmed reduction (H 2-TPR). The catalytic activities toward toluene combustion were investigated in a micro-reactor...

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Bibliographic Details
Published in:Journal of hazardous materials 2007-11, Vol.149 (3), p.742-746
Main Authors: Zhi Min, Liu, Jian Li, Wang, Jun Bo, Zhong, Yao Qiang, Chen, Sheng Hui, Yan, Mao Chu, Gong
Format: Article
Language:English
Subjects:
Applied sciences
Catalysis
Catalytic combustion
Catalytic reactions
Ce 0.50Zr 0.50O 2
Cesium - chemistry
Chemical engineering
Chemistry
Chemistry, Physical - methods
Doping
Equipment Design
Exact sciences and technology
Gas hourly space velocity
Gases
General and physical chemistry
Incineration
Manganese - chemistry
Metals
Oxygen - chemistry
Platinum - chemistry
Pollution
Reactors
Temperature
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Toluene
Toluene - chemistry
X-Ray Diffraction
Yttrium - chemistry
Zirconium - chemistry
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Summary:A series of CeO 2–ZrO 2 mixed oxides were prepared using coprecipitation method and characterized by BET, oxygen storage capacity (OSC), X-ray diffraction (XRD) and H 2-temperature-programmed reduction (H 2-TPR). The catalytic activities toward toluene combustion were investigated in a micro-reactor. The results demonstrate that the catalytic activity of Pt/γ-Al 2O 3/Ce 0.50Zr 0.50O 2 monolithic catalyst can be greatly improved by doping metal into Ce 0.50Zr 0.50O 2. When doping Y and Mn into Ce 0.50Zr 0.50O 2 simultaneously, the catalyst Pt/γ-Al 2O 3/Ce 0.40Zr 0.40Y 0.10Mn 0.10O X shows the highest activity. The T 10 (the temperature of 10% toluene conversion) and the complete conversion temperature (the temperature of 90% toluene conversion) of toluene are 443 and 489 K, respectively. Gas hourly space velocity (GHSV) results show that the prepared catalyst can be applied in a wide range of GHSV (from 12,000 to 20,000 h −1). The catalyst prepared shows great potential for practical application.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2007.08.032