O-25　疑似バイオディーゼル燃料の発汗操作における添加物濃度の影響

抄録

Biodiesel fuel (BDF), which is mainly composed of fatty acid methyl ester (FAME), is a biomass fuel as an alternative to light oil. It can be produced by esterifying vegetable oils, animal fats and oils, and waste cooking oils with methanol. BDF has a problem with cold flow properties due to the high melting point of saturated FAME in its constituents. Separation of saturated FAME, which is a high melting point component, can improve low temperature flow characteristics and increase the use as a liquid fuel dramatically. A sweating operation is proposed as one of the separation methods; after solidifying all of the BDF samples, the melted liquid is separated from residue solid by melting operation at a constant temperature. However, the phase separation performance of FAME mixing is low. In this study, the additive was added to the pseudo BDF to promote the phase separation during the sweating operation. When the additive concentration was 2.0wt%, the separation efficiency increased 1.50 times and the liquid recovery rate also increased as compared with the nonadditive case.