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首页> 美国卫生研究院文献>Biotechnology for Biofuels >Ternary ionic liquid–water pretreatment systems of an agave bagasse and municipal solid waste blend
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Ternary ionic liquid–water pretreatment systems of an agave bagasse and municipal solid waste blend

机译：龙舌兰蔗渣和城市固体废物混合物的三元离子液体-水预处理系统

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BackgroundPretreatment is necessary to reduce biomass recalcitrance and enhance the efficiency of enzymatic saccharification for biofuel production. Ionic liquid (IL) pretreatment has gained a significant interest as a pretreatment process that can reduce cellulose crystallinity and remove lignin, key factors that govern enzyme accessibility. There are several challenges that need to be addressed for IL pretreatment to become viable for commercialization, including IL cost and recyclability. In addition, it is unclear whether ILs can maintain process performance when utilizing low-cost, low-quality biomass feedstocks such as the paper fraction of municipal solid waste (MSW), which are readily available in high quantities. One approach to potentially reduce IL cost is to use a blend of ILs at different concentrations in aqueous mixtures. Herein, we describe 14 IL-water systems with mixtures of 1-ethyl-3-ethylimidazolium acetate ([C2C1Im][OAc]), 1-butyl-3-ethylimidazolium acetate ([C4C1Im][OAc]), and water that were used to pretreat MSW blended with agave bagasse (AGB). The detailed analysis of IL recycling in terms of sugar yields of pretreated biomass and IL stability was examined.
机译：背景技术预处理对于降低生物质的顽固性并提高酶促糖化效率以生产生物燃料是必要的。离子液体（IL）预处理作为一种可以降低纤维素结晶度并去除木质素的预处理方法引起了人们的极大兴趣，木质素是控制酶可及性的关键因素。 IL预处理要实现商业化需要解决几个挑战，包括IL成本和可回收性。此外，尚不清楚在利用低成本，低质量的生物质原料（如城市固体废物的纸屑（MSW））时，IL是否可以保持工艺性能，而这些原料很容易获得。一种潜在降低IL成本的方法是在水性混合物中使用不同浓度的IL混合物。在此，我们描述了14种IL-水系统，其中包含乙酸1-乙基-3-乙基咪唑鎓盐（[C2C1Im] [OAc]），乙酸1-丁基-3-乙基咪唑鎓盐（[C4C1Im] [OAc]）和水的混合物用于预处理与龙舌兰蔗渣（AGB）混合的城市固体废弃物。根据预处理生物质的糖产量和IL稳定性对IL回收进行了详细分析。

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