title: Alkaline pretreatment and the synergic effect of water and tetralin enhances the liquefaction efficiency of bagasse.
abstract: Bagasse liquefaction (BL) in water, tetralin, and water/tetralin mixed solvents (WTMS) was investigated, and effects of tetralin content in WTMS, temperature, and alkaline pretreatment of bagasse on liquefaction efficiency were studied. At 300°C, bagasse conversion in WTMS with tetralin content higher than 50 wt% was 86-87 wt%, whereas bagasse conversion in water or tetralin was 67 wt% or 84 wt%, respectively. Because the solid conversion from liquefaction in WTMS with tetralin content higher than 50 wt% was always higher than that in water or tetralin at temperatures between 250 and 300°C, a synergic effect between water and tetralin is suggested. Alkaline pretreatment of bagasse resulted in significantly higher conversion and heavy oil yield from BL in water or WTMS. The effect of deoxygenation by the present liquefaction method is demonstrated by lower oxygen contents (16.01-19.59 wt%) and higher heating values (31.9-34.8 MJ/kg) in the produced oils.
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China. Electronic address: zhixiali@hotmail.com.
authors.forename: Zhixia
authors.initials: Z
authors.lastname: Li
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China; State Key Laboratory of Non-Food Biorefinery Enzymolysis, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi 530007, China.
authors.forename: Jiangfei
authors.initials: J
authors.lastname: Cao
authors.affiliation: State Key Laboratory of Non-Food Biorefinery Enzymolysis, National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi 530007, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Huang
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
authors.forename: Yaming
authors.initials: Y
authors.lastname: Hong
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
authors.forename: Cunlong
authors.initials: C
authors.lastname: Li
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
authors.forename: Xinxin
authors.initials: X
authors.lastname: Zhou
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Xie
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Lai
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Shen
authors.affiliation: School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004, China.
authors.forename: Congjin
authors.initials: C
authors.lastname: Chen
mesh_terms: D000468:Alkalies / Q000494:pharmacology*; D001709:Biotechnology / Q000379:methods*; D002482:Cellulose / Q000737:chemistry*; D004055:Differential Thermal Analysis; D008401:Gas Chromatography-Mass Spectrometry; D009821:Oils / Q000737:chemistry; D012972:Sodium Hydroxide / Q000494:pharmacology; D012997:Solvents; D013696:Temperature; D013764:Tetrahydronaphthalenes / Q000494:pharmacology*; D013818:Thermogravimetry; D014867:Water / Q000494:pharmacology*
chemical_list: D000468:Alkalies; D009821:Oils; D012997:Solvents; D013764:Tetrahydronaphthalenes; D014867:Water; D012972:Sodium Hydroxide; D002482:Cellulose; C027433:bagasse; C095210:tetralin
keywords: Alkaline pretreatment; Bagasse; Liquefaction; Synergic effect; Water/tetralin mixed solvent