The conversion efficiency of lignocellulosic biomass into useful products largely depends on the effective fractionation of the biomass components. Lignin is one of the major components of lignocellulosic biomass which possesses strong recalcitrance to the efficient valorization of biomass fractions. In recent years, significant research has been carried out on the chemical processes of delignification. Among different chemical methods, organosolv technique produces high-quality lignin and gives the option for lignin recyclability. However, high acid severity favors the formation of condensed lignin unit which considerably limits biomass conversion yield and selectivity. We hypothesize the organosolv-water biphasic pretreatment will reduce of lignin condensation. This is due to the partition coefficient of acid and lignin to the aqueous phase and organic phase respectively. In the presentation, I will show the efficiency of organosolv- water biphasic solvent for the fractionation of <i>Acacia confusa</i> wood. The structural variation of the fractionated lignin will be demonstrated and compared with the ethanol organosolv process.

Organosolv-water biphasic pretreatment of <i>Acacia confusa</i>

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.

Organosolv-water biphasic pretreatment of Acacia confusa