Efficient recovery of ionic liquid by electrodialysis in the acid hydrolysis process |
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| Authors: | Takatsugu Endo Mai Tatsumi Kosuke Kuroda Heri Satria Yumiko Shimada Kazuaki Ninomiya |
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| Affiliation: | 1. Faculty of Natural System, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Japan;2. Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Lampung, Bandar Lampung, Indonesia;3. Institute for Frontier Science Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Japan |
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| Abstract: | Electrodialysis (ED) has been recently known as a highly effective technique to remove and recover ionic liquids from aqueous solution. When a conventional electrolyte solution for the ED process containing Na2SO4 was used, a recovery ratio of an acidic IL, 1-butyl-3-methylimidazolium hydrogen sulfate (Bmim]HSO4]), was 90%. On the other hand, the value clearly increased to 96% when we employed Bmim]HSO4] as the electrolyte solution. In an acid hydrolysis of bagasse using the IL under microwave irradiation, the recovery ratio maintains 96%, irrespective of reaction time. This demonstrates the applicability of the proposed ED system in biomass processing. |
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| Keywords: | Acid hydrolysis electrodialysis ionic liquids |
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