Removal of Cooking Fume by Catalytic Combustion on Pt/La-Al2O3 + Ce0.5Zr0.5O2 Catalyst
来源期刊：JOURNAL OF RARE EARTHS2006年第5期
论文作者：Zhong Junbo Gong Maochu Wang Jianli Zhao Ming Liu Zhimin Chen Yaoqiang
Key words：cooking fume; catalytic combustion; OSM; monolithic catalyst; rare earths;
Abstract: Four monolithic catalysts with low concentration of noble metal were prepared by the immersion method [ Pt/LaAl2O3, Pt/La-Al2O3 + Pt/OSM (2∶1), Pt/La-Al2O3 + Pt/OSM (1∶1) Pt/La-Al2O3 + Pt/OSM (1∶2)], and measurements of their activity were carried out in a conventional fixed-bed flow reactor. The results show that the oxygen storage material (OSM) that is added can promote the activity of the prepared catalysts and can decrease the complete conversion temperature of cooking fume. When the ratio between La-Al2O3 and OSM is 1∶ 1, the catalyst has the highest activity, and the complete conversion temperature of cooking fume is 270 ℃; the catalyst thus prepared can be applied in a wide range of gas hourly space velocity (GHSV) [from 10000 to 60000 h-1 ]. The catalyst obtained shows great potential for practical application.
Zhong Junbo1，Gong Maochu1，Wang Jianli1，Zhao Ming1，Liu Zhimin1，Chen Yaoqiang1
(1.College of Chemistry, Sichuan University, Chengdu 610064, China)
Abstract:Four monolithic catalysts with low concentration of noble metal were prepared by the immersion method [ Pt/LaAl2O3, Pt/La-Al2O3 + Pt/OSM (2∶1), Pt/La-Al2O3 + Pt/OSM (1∶1) Pt/La-Al2O3 + Pt/OSM (1∶2)], and measurements of their activity were carried out in a conventional fixed-bed flow reactor. The results show that the oxygen storage material (OSM) that is added can promote the activity of the prepared catalysts and can decrease the complete conversion temperature of cooking fume. When the ratio between La-Al2O3 and OSM is 1∶ 1, the catalyst has the highest activity, and the complete conversion temperature of cooking fume is 270 ℃; the catalyst thus prepared can be applied in a wide range of gas hourly space velocity (GHSV) [from 10000 to 60000 h-1 ]. The catalyst obtained shows great potential for practical application.
Key words:cooking fume; catalytic combustion; OSM; monolithic catalyst; rare earths;
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