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Korean Journal of Chemical Engineering

, Volume 30, Issue 6, pp 1272–1276 | Cite as

Kinetic modeling of biodiesel production by mixed immobilized and co-immobilized lipase systems under two pressure conditions

  • Jong Ho Lee
  • Sung Bong Kim
  • Hah Young Yoo
  • Ja Hyun Lee
  • Chulhwan Park
  • Sung Ok Han
  • Seung Wook KimEmail author
Biotechnology

Abstract

A kinetic model of mixed immobilized lipase (MIL) and co-immobilized lipase (CIL) systems was investigated by calculating the kinetic parameters based on the reaction mechanisms for lipase-catalyzed transesterification of soybean oil and methyl alcohol. The kinetic parameters were assessed under atmospheric and supercritical fluid conditions. Although the CIL system had a higher initial reaction rate, the effect of substrate inhibition by methanol was higher than that in the MIL system. The initial reaction rate of MIL and CIL decreased under atmospheric conditions as the methanol concentration increased. However, the initial reaction rate of MIL and CIL increased until methanol concentration increased to twice that of oil under the supercritical fluid condition. As a result, the inhibition effect by methanol was identified through a kinetic analysis. A simulated model can be used to predict the optimal conditions for biodiesel production under atmospheric and supercritical conditions.

Key words

Kinetic Model Lipase Enzyme Immobilization Co-immobilization Transesterification 

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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2013

Authors and Affiliations

  • Jong Ho Lee
    • 1
  • Sung Bong Kim
    • 1
  • Hah Young Yoo
    • 1
  • Ja Hyun Lee
    • 1
  • Chulhwan Park
    • 2
  • Sung Ok Han
    • 3
  • Seung Wook Kim
    • 1
    Email author
  1. 1.Department of Chemical and Biological EngineeringKorea UniversitySeoulKorea
  2. 2.Department of Chemical EngineeringKwangwoon UniversitySeoulKorea
  3. 3.College of Life Science and BiotechnologyKorea UniversitySeoulKorea

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