Membrane-based recovery of glucose from enzymatic hydrolysis of ionic liquid pretreated cellulose

被引：57

作者：

Abels, Christian ^{[1
]}

Thimm, Kristof ^{[1
]}

Wulfhorst, Helene ^{[2
]}

Spiess, Antje Christine ^{[2
,3
]}

Wessling, Matthias ^{[1
,3
]}

机构：

[1] Rhein Westfal TH Aachen, Aachener Verfahrenstech Chem Proc Engn, D-52064 Aachen, Germany

[2] Rhein Westfal TH Aachen, Aachener Verfahrenstech Enzyme Proc Technol, D-52074 Aachen, Germany

[3] RWTH Univ eV, Interact Mat Res DWI, D-52074 Aachen, Germany

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 149卷

关键词：

Cellulose; Enzymatic hydrolysis; Ionic liquid; Ultrafiltration; Nanofiltration; Electrodialysis; FERMENTABLE SUGARS; BIOMASS; WOOD; LIGNOCELLULOSE; CONVERSION; FEEDSTOCK; STEP;

D O I：

10.1016/j.biortech.2013.09.012

中图分类号：

S2 [农业工程];

学科分类号：

082806 [农业信息与电气工程];

摘要：

In this work, a membrane-based downstream process for the recovery of glucose from cellulose hydrolysis is described and evaluated. The cellulose is pretreated with the ionic liquid 1,3-dimethyl-imidazolium dimethylphosphate to reduce its crystallinity. After enzymatic conversion of cellulose to glucose the hydrolysate is filtered with an ultrafiltration membrane to remove residual particulates and enzymes. Nanofiltration is applied to purify the glucose from molecular intermediates, such as cellobiose originating from the hydrolysis reaction. Finally, the ionic liquid is removed from the hydrolysate via electrodialysis. Technically, these process steps are feasible. An economic analysis of the process reveals that the selling price of glucose from this production process is about 2.75 (sic)/kg which is too high as compared to the current market price. (C) 2013 Published by Elsevier Ltd.

引用

页码：58 / 64

页数：7

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