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Esterification condition of rapeseed oil fatty acid in supercritical methanol
  
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KeyWord:rapeseed oil fatty acid  supercritical methanol  esterification  kinetics model
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Author NameAffiliation
LI Yizhe  
WANG Hua  
BAO Guirong  
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Abstract:
      With the fatty acid prepared by hydrolyzing rapeseed oil in subcritical water as raw material, the esterification conditions and kinetics model of rapeseed oil fatty acid in supercritical methanol were studied. The effects of reaction temperature, volume ratio of methanol to rapeseed oil fatty acid, reaction pressure and reaction time on the conversion rate of the esterification were investigated by single factor experiment,and the content change of methyl oleate was analyzed by ultra performance liquid chromatography. The results showed that the optimal esterification conditions of rapeseed oil fatty acid in supercritical methanol were obtained as follows: reaction temperature 270℃, reaction time 40 min, reaction pressure 25 MPa and volume ratio of methanol to rapeseed oil fatty acid 2∶1.
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