3-93-1 バイオディーゼル燃料合成用固体塩基触媒の微粒子化(Session3 バイオマス等,ポスター発表)

概要

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In order to synthesize nano-particles of calcium alkoxide that catalyzes transesterification of vegetable oil with methanol, a variety of active carbons were used as the supporting material of the catalytically active phase. The supported calcium alkoxide catalyst was prepared by stirring calcium glyceroxide and the active carbon into methanol at 333 K. A chemical formula of the catalytically active phase was estimated at CH_3O-Ca-O(OH)_2C_3H_5. On a surface of the active carbons whose surface area was in the range of 809-1,725 m^2/g, the catalytically active phase was shaped into porous particles of micrometer size. For the supported catalyst prepared from an active carbon of 3,073 m^2/g, particles of the catalytically active phase were too fine to be invisible in the SEM image. However, the fine particles resulted in the slower transesterification of soybean oil into its methyl ester than the micrometer-sized particles.
2011-08-09