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Kinetics of lipase-catalyzed synthesis of soybean fatty acid ethyl esters in pressurized propane

Paper ID Volume ID Publish Year Pages File Format Full-Text
24233 43506 2010 8 PDF Available
Title
Kinetics of lipase-catalyzed synthesis of soybean fatty acid ethyl esters in pressurized propane
Abstract

This work reports new experimental data and mathematical modeling of lipase-catalyzed biodiesel production using soybean oil and ethanol as substrates and pressurized n-propane as solvent. The experiments were carried out in a batch reactor, recording the reaction kinetics and evaluating the effects of temperature in the range of 45–70 °C, enzyme content from 1 to 20 wt% and oil to ethanol molar ratios of 1:3, 1:6, 1:9 and 1:15. The solvent to substrates mass ratio and pressure were set at 2:1 and 50 bar, respectively. Results showed that lipase-catalyzed alcoholysis in propane medium might be a potential alternative to conventional techniques for biodiesel production, since good conversions were obtained at mild temperature and pressure conditions. The semi-empirical mathematical model based on balance equations, adopted to describe the transesterification kinetics in pressurized n-propane, yielded relative deviations between experimental and calculated values lower than 10%, thus allowing a satisfactory representation of experimental results and a better understanding of the transesterification reaction.

Keywords
Kinetic model; Lipase; Biodiesel; Pressurized propane; Transesterification
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Kinetics of lipase-catalyzed synthesis of soybean fatty acid ethyl esters in pressurized propane
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 147, Issue 2, 17 May 2010, Pages 108–115
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us