INFLUENCE OF PROCESSING CONDITIONS ON OUTPUT AND PRODUCT COMPOSITION OF WHEAT STRAW FRACTIONATION IN MEDIUM 1-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE
Abstract
The work is devoted to identifying the influence of temperature and duration of wheat straw treatment in the environment chloride 1-butyl-3-methylimidazolium on outputs and composition of the fractions of its main components. It is found that with increasing treatment temperature and duration in the range 100–150 °C cellulose purification occurs by hemicelluloses and lignin. It was revealed that delignification processes occur quite rapidly at 120 °C. As part of the cellulose, fraction of lignin content is reduced to 17–18%, and the strength of hydrogen bonds is broken. All this together it leads to significantly increase the reaction capability cellulose in conditions of enzymatic hydrolysis.
The maximum yield of sugars from polysaccharides of wheat straw (60,8% on the A.S.M.) is obtained after the treatment in a medium chloride 1-butyl-3-methylimidazolium at 140 °C for 2 h.Downloads
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