Pretreatment of lignocellulosic biomass and recovery of substituents using natural deep eutectic solvents​/compound mixtures with low transition temperatures

M.C. Kroon (Inventor), M. Francisco Casal (Inventor), A. Bruinhorst, van den (Inventor)

    Research output: PatentPatent publication

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    Abstract

    Low transition temp. mixts. (LTTMs) or solvents are provided that can be used in methods and systems to dissolve and hydrolyze certain components from lignin-¿contg. biomass (e.g. lignin) at mild conditions so that further degrdn. is prevented. The solvents, methods and systems have various advantages over prior technol. or approaches. For example, LTTMs are cheap solvents, renewable and¿/or nontoxic food ingredients. LTTMs dissolve lignin selectively from a lignin-¿contg. biomass. A highly efficient (up to 90¿%) lignin recovery can be achieved. The recovered lignin is of higher quality. The remaining cellulose is also of higher quality. Much less H2O is needed, which means a tremendous redn. of the energy requirement in the recovery process, i.e. less energy needed for evapg. large quantities of H2O
    Original languageEnglish
    Patent numberWO2013153203
    Priority date12/04/12
    Publication statusPublished - 17 Oct 2013

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