Beneficial synergistic effect on bio-oil production from co-liquefaction of sewage sludge and lignocellulosic biomass. (March 2018)

• Record Type: Journal Article
• Authors: Leng, Lijian; Li, Jun; Yuan, Xingzhong; Li, Jingjing; Han, Pei; Hong, Yuchun; Wei, Feng; Zhou, Wenguang
• Is Part Of: Bioresource technology. Volume 251(2018)
• Page Start: 49
• Page End: 56
• Publication Date: 2018-03
• Subjects: Co-liquefaction -- Sewage sludge -- Lignocellulosic biomass -- Bio-oil -- Synergistic effect; 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.2017.12.018
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Co-liquefaction of municipal sewage sludge and biomass enhanced bio-oil yield. Co-liquefaction improved the quality of bio-oil. Co-liquefaction reduced the content of heavy fraction in bio-oil. Abstract: Co-liquefaction of municipal sewage sludge (MSS) and lignocellulosic biomass such as rice straw or wood sawdust at different mixing ratios and the characterization of the obtained bio-oil and bio-char were investigated. Synergistic effects were found during co-processing of MSS with biomass for production of bio-oil with higher yield and better fuel properties than those from individual feedstock. The co-liquefaction of MSS/rice straw (4/4, wt) increased the bio-oil yield from 22.74% (bio-oil yield from liquefaction of MSS individually) or 23.67% (rice straw) to 32.45%. Comparable increase on bio-oil yield was also observed for MSS/wood sawdust mixtures (2/6, wt). The bio-oils produced from MSS/biomass mixtures were mainly composed of esters and phenols with lower boiling points (degradation temperatures) than those from individual feedstock (identified with higher heavy bio-oil fractions). These synergistic effects were probably resulted from the interactions between the intermittent products of MSS and those of biomass during processing.