Implementation of microfiltration in recycled usage of ionic liquid BmimCl and deep eutectic solvent ChCl/acetic acid for lignocellulosic biomass conversionстатья
Статья опубликована в журнале из списка Web of Science и/или Scopus
Аннотация:The recycled usage of ionic liquids (ILs) and deep eutectic solvents (DESs) is required for reducing the economic costs of the conversion of lignocellulosic biomass. In the study, implementation of membrane microfiltration in recycled usage of IL 1-butyl-3-methylimidazolium chloride (BmimCl) and DES choline chloride/acetic acid (ChCl/AA) for biomass conversion was considered. Aspen wood, pine wood, and sugarcane bagasse were used as representing hardwoods, softwoods, and grasses. BmimCl and ChCl/AA were collected after the biomass pretreatment and recycled 15 times through water evaporation. The pretreatment with the recycled 15 times BmimCl and ChCl/AA was characterized with 20–36% lower sugars yields compared to the fresh ones. After regeneration of BmimCl and ChCl/AA through membrane microfiltration, sugars yields reached 86–97% from the yields in the case of the fresh BmimCl and ChCl/AA. Membrane microfiltration was demonstrated to extend the opportunities for recycled usage of ILs and DESs for biomass conversion.
