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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Biorefining of wheat straw using an acetic and formic acid based organosolv fractionation process
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Biorefining of wheat straw using an acetic and formic acid based organosolv fractionation process

机译：基于乙酸和甲酸的有机溶剂分馏工艺对麦草进行生物精制

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To assess the potential of acetic and formic acid organosolv fractionation of wheat straw as basis of an integral biorefinery concept, detailed knowledge on yield, composition and purity of the obtained streams is needed. Therefore, the process was performed, all fractions extensively characterized and the mass balance studied. Cellulose pulp yield was 48% of straw dry matter, while it was 21% and 27% for the lignin and hemicellulose-rich fractions. Composition analysis showed that 67% of wheat straw xylan and 96% of lignin were solubilized during the process, resulting in cellulose pulp of 63% purity, containing 93% of wheat straw cellulose. The isolated lignin fraction contained 84% of initial lignin and had a purity of 78%. A good part of wheat straw xylan (58%) ended up in the hemicellulose-rich fraction, half of it as monomeric xylose, together with proteins (44%), minerals (69%) and noticeable amounts of acids used during processing.
机译：为了评估作为整体生物精炼概念基础的小麦秸秆乙酸和甲酸有机溶剂分馏的潜力，需要获得的物流的收率，组成和纯度的详细知识。因此，进行了该过程，广泛地表征了所有馏分并研究了质量平衡。纤维素纸浆的产率为秸秆干物质的48％，而富含木质素和半纤维素的馏分的纤维素产率为21％和27％。组成分析表明，在此过程中增溶了67％的小麦秸秆木聚糖和96％的木质素，得到纯度为63％的纤维素浆，其中包含93％的小麦秸秆纤维素。分离的木质素级分包含初始木质素的84％，纯度为78％。小麦秸秆木聚糖的一大部分（58％）最终变成富含半纤维素的部分，其中一半为单体木糖，以及蛋白质（44％），矿物质（69％）和加工过程中使用的大量酸。

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