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Title: Optimization for microwave-assisted direct liquefaction of bamboo residue in glycerol/methanol mixtures

Author: Xie, Jiulong; Qi, Jinqiu; Hse, Chungyun; Shupe, Todd F.;

Date: 2015

Source: Journal of Forestry Research

Publication Series: Scientific Journal (JRNL)

Description: Bamboo residues were liquefied in a mixture of glycerol and methanol in the presence of sulfuric acid using microwave energy. We investigated the effects of liquefaction conditions, including glycerol/methanol ratio, liquefaction temperature, and reaction time on the conversion yield. The optimal liquefaction conditions were under the temperature of 120 C, the reaction time of 7 min, the glycerol–methanol–bamboo ratio of 8/0/2 (W/W), and the microwave power of 300 W. Maximum conversion yield was 96.7 %. The liquid products were separated into two contents (water soluble part and precipitate part) by addition of a sufficient amount of water. By Fourier transform infrared (FT-IR), the water soluble content mainly contained glycerol and its derivate and carbohydrate degradation products, and the precipitate content was mainly lignin derivatives.

Keywords: Bamboo residue, Microwave, Liquefaction, Glycerol

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Xie, Jiulong; Qi, Jinqiu; Hse, Chungyun; Shupe, Todd F. 2015. Optimization for microwave-assisted direct liquefaction of bamboo residue in glycerol/methanol mixtures. Journal of Forestry Research. 26(1): 261-265. 5 p.  10.1007/s11676-015-0032-1

 


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