Solvent Recycle and Impurity Purge Evaluation for Organosolv Pretreatment Method for Bioethanol Production from Lignocellulosic Biomass

From waste to resource: advancements in sustainable lignin modification

“…via distillation. 23 Interestingly, a study from 2021 analyzed the GWP (global warming potential) of an organosolv process from spruce bark, leading to 0.23 kg CO 2 eq. per kg lignin using ethanol, while using bioethanol from wood the GWP could be more than halved to 0.11 kg CO 2 eq.…”

Facile Catalyst‐Free Approach toward Fully Biobased Reprocessable Lignin Thermosets

“…Even though organosolv lignin is obtained through a delignification process by using a large amount of solvents, solvents can be recovered and recycled. [25,26] Also, the organosolvation provides more pure lignin with controlled molecular weight and derivatization after splitting the lignocellulose. [27][28][29] Organosolv DOI: 10.1002/macp.202200303 lignin is still considered as a sustainable feedstock for further valorization.…”