628 バイオディーゼル燃料の精製純度がディーゼル機関の性能および排気特性に及ぼす影響

概要

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This paper describes the effects of refining process of biodiesel fuel on fuel properties, diesel engine performance and exhaust emissions. Plant oils or used cooking oils are reacted with methanol and a lye catalyst : KOH, to produce fatty acid methyl ester : unwashed-biodiesel. Washing the unwashed-biodiesel by water and dying processes are necessary in order to improve its fuel properties. Experiments were carried out on a single-cylinder, 4-stroke-stroke, DI diesel engine and various unwashed-, washed- and refined-biodiesel fuels derived from new or used cooking oil. From the result, it was found that the engine running with the unwashed biodiesel fuel becomes unstable, and shows higher emissions of methanol and SO2. This methanol will be an remaining methanol at production process of biodiesel fuel.
一般社団法人日本機械学会の論文
2003-03-13