Utilization of Ionic Liquids in Lignocellulose Biorefineries as Agents for Separation, Derivatization, Fractionation, or Pretreatment.
Ionic liquids (ILs) can play multiple roles in lignocellulose biorefineries, including utilization as agents for the separation of selected compounds or as reaction media for processing lignocellulosic materials (LCM). Imidazolium-based ILs have been proposed for separating target components from LCM biorefinery streams, for example, the dehydration of ethanol-water mixtures or the extractive separation of biofuels (ethanol, butanol) or lactic acid from the respective fermentation broths. As in other industries, ILs are potentially suitable for removing volatile organic compounds or carbon dioxide from gaseous biorefinery effluents. On the other hand, cellulose dissolution in ILs allows homogeneous derivatization reactions to be carried out, opening new ways for product design or for improving the quality of the products. Imidazolium-based ILs are also suitable for processing native LCM, allowing the integral benefit of the feedstocks via separation of polysaccharides and lignin. Even strongly lignified materials can yield cellulose-enriched substrates highly susceptible to enzymatic hydrolysis upon ILs processing. Recent developments in enzymatic hydrolysis include the identification of ILs causing limited enzyme inhibition and the utilization of enzymes with improved performance in the presence of ILs.
Chemical Engineering Department, Faculty of Science, University of Vigo (Campus Ourense) , Polytechnical Building, As Lagoas, 32004 Ourense, Spain.|CITI (Centro de Investigación, Transferencia e Innovación), University of Vigo , Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain.
Susana
S
Peleteiro
Chemical Engineering Department, Faculty of Science, University of Vigo (Campus Ourense) , Polytechnical Building, As Lagoas, 32004 Ourense, Spain.|CITI (Centro de Investigación, Transferencia e Innovación), University of Vigo , Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain.
Sandra
S
Rivas
Chemical Engineering Department, Faculty of Science, University of Vigo (Campus Ourense) , Polytechnical Building, As Lagoas, 32004 Ourense, Spain.|CITI (Centro de Investigación, Transferencia e Innovación), University of Vigo , Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain.
José L
JL
Alonso
Chemical Engineering Department, Faculty of Science, University of Vigo (Campus Ourense) , Polytechnical Building, As Lagoas, 32004 Ourense, Spain.|CITI (Centro de Investigación, Transferencia e Innovación), University of Vigo , Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain.
Valentín
V
Santos
Chemical Engineering Department, Faculty of Science, University of Vigo (Campus Ourense) , Polytechnical Building, As Lagoas, 32004 Ourense, Spain.|CITI (Centro de Investigación, Transferencia e Innovación), University of Vigo , Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain.
Juan C
JC
Parajó
D000821:Animal Feed; D056804:Biofuels; D005591:Chemical Fractionation; D005524:Food Technology / Q000379:methods*; D052578:Ionic Liquids / Q000737:chemistry*; D008031:Lignin / Q000737:chemistry* / Q000302:isolation & purification; D011134:Polysaccharides / Q000302:isolation & purification; D059205:Renewable Energy
D056804:Biofuels; D052578:Ionic Liquids; D011134:Polysaccharides; C036909:lignocellulose; D008031:Lignin
biorefineries; fractionation; ionic liquids; lignocellulosic materials; pretreatment