Liquid phase conversion of lignocellulosic biomass using biphasic systems
Liquid phase conversion of lignocellulosic biomass using biphasic systems
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DOI：
10.1016/j.biombioe.2018.08.009
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发表时间：
2018-11
影响因子：
6
通讯作者：
C. Zimmermann;Nathan V. Bollar;Stephanie G. Wettstein
中科院分区：
文献类型：
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作者：
C. Zimmermann;Nathan V. Bollar;Stephanie G. Wettstein
木质纤维素生物质，如玉米秸秆、纸浆和造纸厂废物以及柳枝稷，是用于生产单糖和平台化学品的容易获得的原料，然后可以将其转化为有价值的有机分子。然而，由于木质素在温和的反应条件下的不稳定性和反应性糖/平台化学品在更苛刻的条件下的不稳定性，难以有效地分级木质纤维素生物质。两相系统提供了一种可能的解决方案，以创建经济上可行的生物质升级过程，因为糖优选水相，而木质素和呋喃分配到有机相。本文综述了近年来利用双相反应以及利用双相体系分离产物的双相反应来压裂生物质的研究进展。使用不同的双相介质，非均相和均相催化剂，反应条件进行了审查和趋势，在分离生物质中发现的馏分进行了讨论。
Lignocellulosic biomass, such as corn stover, pulp and paper mill waste, and switchgrass, is a readily available feedstock for the production of monomeric sugars and platform chemicals that can then be transformed into valuable organic molecules. However, efficiently fractionating lignocellulosic biomass is difficult due to the recalcitrance of lignin at mild reaction conditions and the reactive sugars/platform chemicals at more severe conditions. Biphasic systems present a possible solution to creating an economically viable biomass upgrading process since sugars prefer the aqueous phase while the lignin and furans partition to the organic phase. This review focuses on recent work to fractionate biomass using biphasic reactions as well as monophasic reactions that use biphasic systems to separate products. The use of different biphasic media, heterogeneous and homogeneous catalysts, and reaction conditions are reviewed and trends in isolating the fractions found in biomass are discussed.