Production of biodiesel by lipase-catalyzed transesterification of vegetable oils: A kinetics study

Research output: Contribution to journalArticlepeer-review

83 Citations (Scopus)

Abstract

Kinetics of production of biodiesel by enzymatic methanolysis of vegetable oils using lipase has been investigated. A mathematical model taking into account the mechanism of the methanolysis reaction starting from the vegetable oil as substrate, rather than the free fatty acids, has been developed. The kinetic parameters were estimated by fitting the experimental data of the enzymatic reaction of sunflower oil by two types of lipases, namely, Rhizomucor miehei lipase (RM) immobilized on ion-exchange resins and Thermomyces lanuginosa lipase (TL) immobilized on silica gel. There was a good agreement between the experimental results of the initial rate of reaction and those predicted by the proposed model equations, for both enzymes. From the proposed model equations, the regions where the effect of alcohol inhibition fades, at different substrate concentrations, were identified. The proposed model equation can be used to predict the rate of methanolysis of vegetable oils in a batch or a continuous reactor and to determine the optimal conditions for biodiesel production.

Original languageEnglish
Pages (from-to)1442-1448
Number of pages7
JournalBiotechnology Progress
Volume21
Issue number5
DOIs
Publication statusPublished - Sep 1 2005
Externally publishedYes

ASJC Scopus subject areas

  • Biotechnology

Fingerprint

Dive into the research topics of 'Production of biodiesel by lipase-catalyzed transesterification of vegetable oils: A kinetics study'. Together they form a unique fingerprint.

Cite this