Abstract
Four monolithic catalysts with low concentration of noble metal were prepared by the immersion method [Pt/La-Al 2O 3, Pt/La-Al 2O 3 + Pt/OSM (2:1), Pt/La-Al 2O 3 + Pt/OSM (1:1) Pt/La-Al 2O 3 + 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-Al 2O 3 and OSM is 1:1, the catalyst has the highest activity, and the complete conversion temperature of cooking fume is 270°C; 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.
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