Journal
SEPARATION AND PURIFICATION TECHNOLOGY
Volume 120, Issue -, Pages 86-91Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.seppur.2013.09.025
Keywords
Electrodialysis; Ionic liquid; Lignocellulosic biomass; Pretreatment; Recovery
Categories
Funding
- Forest Science Technology [S121313L030120]
- Korea Forest Service
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In this study, an ionic liquid was recovered in electrodialysis (ED) of the liquid fraction (hydrolysate) from the softwood biomass pretreated with an ionic liquid, [BMIM]Cl (1-butyl-3-methylimidazaolium chloride). The influence of operating parameters (electrical potential and ionic liquid concentration) on the ED performance was investigated. The results showed that the process performance increased with increasing electrical potential and ionic liquid concentration. In this study, the process performance decreased due to the deposition of ionic liquid during ED experiments of the hydrolysate. However, the process performance was recovered by chemical cleaning as reversible fouling. A feasibility study on the ionic liquid recovery showed that the ED process had better performance than other processes without significant fouling effect as a feasible method to recover ionic liquids from hydrolysate. (C) 2013 Elsevier B.V. All rights reserved.
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