Abstract
ABSTRACT Lignin dissolution and the fluid behaviour of reaction systems play important roles in the conversion rate of lignin. This study investigated the solubility of enzymatic hydrolysis lignin (EHL) in 1-butyl-3-methylimidazole bisulphate ethanol solutions ([BMIM]HSO4/ethanol) and the dynamic shear rheological characterisation of EHL-[BMIM]HSO4/ethanol. Different with [BMIM]HSO4/water, [BMIM]HSO4/ethanol exhibited excellent abilities to dissolve EHL at [BMIM]HSO4% 20%–90%, with the maximum EHL solubility obtained at 40%–70%. The dynamic shear rheological characterisation strongly depended on temperatures, [BMIM]HSO4% and EHL%, exhibited as pseudoplastic fluid at higher [BMIM]HSO4% and EHL%, and Dilatant fluid at lower [BMIM]HSO4% and EHL%. Adjusting an appropriate [BMIM]HSO4% and EHL%, EHL-[BMIM]HSO4/ethanol was Newtonian fluid with the viscosity stable. EHL was regenerated from EHL-[BMIM]HSO4/ethanol without obvious changes in the chemical structure and thermal behaviour. This study provided ideas for the design of the [BMIM]HSO4/ethanol system and the optimisation of conversion processes for the economic utilisation of lignin.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
