Fig. 5

Impact of lignin recovery on minimum fuel selling price (MFSP) in $/L. The scenarios include (1) base case—precipitated lignin sold as a polyol replacement; (2) no lignin—no lignin recovered as value-added material; (3) monomers only—16% of precipitated lignin sold as high-value monomers with the remainder only for burning; (4) precipitated monomers and soluble for polyol—16% of precipitated lignin sold as high-value monomers with the remainder as a polyol replacement; (5) all lignin for polyol—all solubilized lignin sold as a polyol replacement; (6) solubilized monomers and soluble for polyol—16% of all solubilized lignin sold as high-value monomers with the remainder as a polyol replacement; (7) polyol and soluble for monomers—all precipitated lignin sold as a polyol replacement, while 48% of non-precipitated lignin sold as high-value monomers. Note that in all cases, any lignin not recovered as either polyol replacement or high-value monomers is burned in the boiler for heat and/or power