生物质液化油分级产物的分离和综合利用研究

doi:10.3969/j.issn.0253-2417.2014.06.010

Abstract

Abstract: Liquefaction of biomass using concentrated sulfuric acid as catalyst and methanol-glycerol complex as solvent was investigated. The liquefied products from bamboo shavings, poplar, eucalyptus and pine were neutralized, filtrated and followed by rotary evaporation. The results show that the product from liquefaction of bamboo shaving are mixture of phenolics and acetyl methyl glucoside. Polyglycoside phase mainly contains about 41.81% of polyglycosides which were mainly pyranoside, and 47.27% of unreacted glycerin and glycerin polymers. On the other hand, polyphenol phase mainly contains levulinate, polyphenols, and glycerol, and the content of glycerine and its polymers is 38.04%. Polyphenols mainly contain phenols and levulinic acid esters, and the average molecular weight of phenolics is approximate 990.

Key words: biomass liquefaction, multi-glucoside, acetyl methyl propionate, polyphenols

CLC Number:

TQ35
TK5

FENG Jun-feng, JIANG Jian-chun, XU Jun-ming, HE Xiao-liang, YANG Zhong-zhi, XU Le. Separation and Utilization of Classification Products in Liquefied Oil of Biomass[J]. Chemistry and Industry of Forest Products, 2014, 34(6): 61-68.

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Separation and Utilization of Classification Products in Liquefied Oil of Biomass

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