화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.10, 2858-2862, October, 2016
DOI10.1007/s11814-016-0122-6  Export Citation
Liquefaction and characterization of residue of oleaginous yeast in polyhydric alcohols
Gaoxiang Qi1, 2, Hairong Zhang1, 2, Chao Huang1, 2, Haijun Guo1, 2, Lian Xiong1, 2, Can Wang1, 2, and Xinde Chen1, 2, †
  • 1Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Chinese Academy of Sciences, Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
  • 2Xuyi Center of Attapulgite Applied Technology Research Development & Industrialization, Chinese Academy of Sciences, Xuyi 211700, P. R. China
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The residue of oleaginous yeast (ROY) was liquefied in polyhydric alcohols using sulfuric acid as catalyst. The effects of some liquefaction conditions on the liquefied residue rate, such as liquefaction temperature, catalyst loading, reaction time, glycerol concentration and solvent/ROY ratio, were discussed. The liquefied residue rate decreased as the reaction time, liquefaction temperature, catalyst loading, solvent/ROY ratio increased. The re-polymerization of liquefied products was favored in later stage reaction. Higher catalyst loading and lower solvent/ROY ratio could accelerate the re-polymerization of liquefied products; thus the liquefied residue increased. Fourier transform infrared (FTIR) analyses showed that the main component of ROY is polysaccharide. The gas chromatography and mass spectrometry (GC-MS) analysis showed that liquefied products of ROY included alcohols, acids, ketones, aldehydes, amide, ester and their derivatives.
Keywords:Liquefaction;Oleaginous Yeast;Polyhydric Alcohol;Polysaccharide
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