超臨界流体によるバイオ燃料の先駆的研究(学会賞(学術部門))

概要

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Supercritical fluid science and technology has been considered to be an environmentally benign treatment. Therefore, its technology was applied for a conversion of biomass to useful fuels and chemicals so as to mitigate the environmental loading. For example, supercritical or subcritical water treatment has demonstrated that lignocellulosics can be decomposed to be lignin-derived products for useful aromatic chemicals and carbohydrate-derived products for subsequent ethanol fermentation as well as acetic acid fermentation to produce bioethanol. If this treatment is prolonged, lignocellulosics were found to be converted to organic acids which can be further converted to methane as one of the useful biofuels. If alcohols such as methanol, ethanol etc. are used in their supercritical condition for lignocellulosics, some other useful products were achieved and its liquefied products were found to have a potential as liquid biofuel, while methanol for oils and fats are used, biodiesel can be produced under non-catalytic conditions. In addition, a potential of carboxylate ester and dimethyl carbonate in supercritical state for biodiesel production has been also demonstrated. Consequently, our research achievements in supercritical fluid science and technology for various biomass resources were introduced for clean and green chemistry for a sustainable environment.
一般社団法人日本エネルギー学会の論文
2009-05-20