3-1-1 機械的粉砕によるバイオディーゼル合成反応用CaO触媒の活性化(3-01 バイオディーゼル,Session 3 バイオマス等)

概要

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For the purpose of studying manufacture of CaO catalyst for biodiesel production, a calcined limestone of commercial availability was ground in the presence of biodiesel and the resultant CaO-biodiesel mixture was employed for transesterification of vegetable oil with methanol. Biodiesel, which was used as the grinding solvent, allowed surface oxide phase of CaO catalyst to be guarded from deactivationn caused by contacting with CO_2 and H_2O. When the wet-grinding was carried out with the industrial machines of media-agitating type, the prepared CaO catalyst was so fine that its average particle diameter reached 0.5 μm. The activity measurement test provided data indicating that the transesterifying activity of CaO catalyst was enhances by reducing its average particle diameter. Also, it is possible to recycle the used catalyst as a raw material of the road-making asphalt mixture.
2012-07-30