Organosolv liquefaction of sugarcane bagasse catalyzed by acidic ionic liquids.
An efficient and eco-friendly process is proposed for sugarcane bagasse liquefaction under mild condition using IL catalyst and environmental friendly solvent of ethanol/H2O. The relationship between IL acidic strength and its catalytic performance is investigated. The effects of reaction condition parameters such as catalyst dosage, temperature, time and solvent are also intensively studied. The results show that ethanol/H2O has a significant promotion effect on the simultaneous liquefaction of sugarcane bagasse carbohydrate and lignin. 97.5% of the bagasse can be liquefied with 66.46% of volatile product yield at 200°C for 30min. Furthermore, the IL catalyst shows good recyclability where no significant loss of the catalytic activity is exhibited even after five runs.
Guizhou Provincial Key Laboratory of Computational Nano-material Science, Guizhou Education University, Guiyang 550018, PR China.
Zhengjian
Z
Chen
Guizhou Provincial Key Laboratory of Computational Nano-material Science, Guizhou Education University, Guiyang 550018, PR China; School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China. Electronic address: cejxlong@scut.edu.cn.
Jinxing
J
Long
D002384:Catalysis; D002482:Cellulose / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry; D055772:Green Chemistry Technology; D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D031786:Saccharum / Q000737:chemistry*; D012996:Solutions; D012997:Solvents / Q000737:chemistry
D007093:Imidazoles; D052578:Ionic Liquids; D012996:Solutions; D012997:Solvents; D000431:Ethanol; D002482:Cellulose; C027433:bagasse
Aromatic products; Bagasse; Ionic liquids; Liquefaction; Promotion effect