Biodiesel fuel production with microcapsule contained CaO catalyst under the irradiation of xenon lamp

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Novel microcapsule encapsulated CaO powder and active carbon powder was developed as a catalyst for the biodiesel fuel production from the methanolysis of rapeseed oil. This new catalyst system could be operated under the irradiation of xenon lamp, and 70% of FAME yield could be obtained even at 35℃ after 6h of reaction time. Moreover, it was found that active carbon powder contained in microcapsule was selectively absorbed the light of Visible and Near-Infrared ranges in xenon lamp and provided the heat for trans-esterification reaction of rapeseed oil. These obtained results indicated that the development of microcapsule with a heterogeneous catalyst operated under the irradiation of sunlight was succeeded in the present study.