Progress on the pre-treatment of lignocellulosic biomass employing ionic liquids
Progress on the pre-treatment of lignocellulosic biomass employing ionic liquids
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DOI：
10.1016/j.rser.2019.01.052
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发表时间：
2019-05-01
影响因子：
15.9
通讯作者：
Shah, Kalpit
中科院分区：
文献类型：
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作者：
Halder, Pobitra;Kundu, Sazal;Shah, Kalpit
有效的预处理方法需要破坏复杂的生物质结构，以经济地生产高品位燃料和有价值的平台化学品。离子液体由于其低蒸气压、排放特征、可回收性和可调节性而具有高能效生物质预处理的潜力;一些离子液体甚至可以由可再生生物质原料制备。然而，许多问题目前阻碍了离子液体的大规模吸收，包括它们的生产成本，详细了解抑制工艺优化和建模的宏观、微观和分子水平解构机制，以及对大规模试验的技术经济不稳定性评估的需要。到目前为止，通过改变各种工艺参数，研究了各种木质纤维素生物质的实验室到实验室规模的IL预处理，目的是研究生物质溶解机理并了解IL的预处理性能。本文综述了离子液体在生物质降解、木质素、半纤维素和纤维素富集分离中的应用。
The effective pre-treatment methods are required for the destruction of the complex biomass structure to economically produce high grade fuels and valuable platform chemicals. Ionic liquids have high potential for energy efficient biomass pre-treatment due to their low vapour pressure, emission profile, recyclability and tuneable properties; some ionic liquids can even be prepared from renewable biomass feedstocks. However, a number of issues currently impede the large scale uptake of ionic liquids including their cost of production, detailed understanding the macro, micro and molecular level deconstruction mechanisms which inhibits process optimisation and modelling, and the need for techno-economic astable sessment on large scale trials. So far, laboratory to bench scale IL pre-treatments of various lignocellulosic biomasses were studied by changing various process parameters where the aims were to investigate the biomass dissolution mechanism and understand the pre-treatment performance of ILs. This review outlines current research gaps and potential applications for ionic liquids in the destruction of biomass into its components followed by separation of lignin, hemicellulose and cellulose rich fractions.