Hydro-liquefaction of microcrystalline cellulose, xylan and industrial lignin in different supercritical solvents. (November 2016)

• Record Type: Journal Article
• Authors: Li, Qingyin; Liu, Dong; Hou, Xulian; Wu, Pingping; Song, Linhua; Yan, Zifeng
• Is Part Of: Bioresource technology. Volume 219(2016)
• Page Start: 281
• Page End: 288
• Publication Date: 2016-11
• Subjects: Subcomponent -- Bio-oil -- Hydro-liquefaction -- FT-ICR MS -- Molecular simulation; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2016.07.048
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: The liquefaction behaviors of cellulose and xylan were different from that of lignin. Methanol and ethanol showed a better miscibility with subcomponents via molecular simulation. The product compositions highly depended on three subcomponents. The quality of bio-oil was improved in methanol. Abstract: The influences of solvent on hydro-liquefaction of cellulose, xylan, and lignin were investigated using micro-autoclave. The maximum conversion and bio-oil yield obtained from cellulose and xylan liquefaction were achieved in methanol, whereas similar liquefaction characteristics of lignin were observed in methanol and ethanol. The molecular simulation of interactions between solvents and subcomponents indicated that methanol and ethanol were highly miscible with raw materials. GC–MS and FT-ICR MS characterization revealed that the chemical compositions of liquid products highly depended on the utilized feedstocks. Esters, ketones, and aldehydes were mainly produced from cellulose and xylan conversion, whereas aromatic compounds were primarily derived from lignin conversion. EA results showed that methanol favored the hydrogenation and deoxygenation, resulting in the heating value increased. It could be concluded that the oil quality was highly improved in supercritical methanol.