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Hydrolysis reaction and kinetics of waste edible oil in subcritical water
  
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KeyWord:waste edible oil  subcritical water  hydrolysis  kinetics  fatty acid
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LI Faxiang, KONG Yongping, ZHANG Huanping  
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Abstract:
      The hydrolysis reaction and kinetics of waste edible oil in subcritical water were studied.The effects of volume ratio of water to oil, reaction temperature and reaction time on the hydrolysis reaction were investigated. The results showed that the conversion rate of waste edible oil was up to 98.3% under the conditions of volume ratio of water to oil 3∶?1, reaction temperature 250?℃ and reaction time 3 h. The second-order kinetic equation was used to calculate the kinetic parameters of the hydrolysis reaction, and the activation energy of hydrolysis of waste edible oil in subcritical water was 35.47 kJ/mol.
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