Influence of reaction atmosphere on the liquefaction and depolymerization of wood in an ionic liquid, 1-ethyl-3-methylimidazolium chloride |
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| Authors: | Atsushi Nakamura Hisashi Miyafuji Shiro Saka |
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| Institution: | 1. Department of Socio-Environmental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
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| Abstract: | The influence of reaction atmosphere on the liquefaction and depolymerization of wood in an ionic liquid, 1-ethyl-3-methylimidazolium
chloride (C2mim]Cl]), has been systematically studied. The wood samples were treated with C2mim]Cl] at 120°C under various
atmospheres such as oxygen, nitrogen, and carbon dioxide, both dried and humidified. The percentage of residue after the treatment
shows that oxygen considerably accelerates the liquefaction of wood in C2mim]Cl], and humidity hardly affects liquefaction
under any atmosphere. Gel permeation chromatography (GPC) and high performance liquid chromatography (HPLC) analyses on the
solubilized compounds in C2mim]Cl] indicate that oxygen and humidity enhance the depolymerization of the wood component.
Thus, the reaction atmosphere was revealed to influence, and 1be capable of controlling, the reaction of wood in C2mim]Cl]. |
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