Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/89044
Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Sendžikienė, Eglė;Šinkūnienė, Dovilė;Kazanceva, Irina;Kazancev, Kiril
Title: Optimization of low quality rapeseed oil transesterification with butanol by applying the response surface methodology
Is part of: Renewable energy. Oxford : Elsevier Ltd., Vol. 87, part 1 (2016)
Extent: p. 266-272
Date: 2016
Keywords: Biodiesel;butanol;lipase;transesterification;oil
Abstract: This paper discusses the determination of the optimal conditions for enzymatic transesterification of model waste oil (with 4% acid value) with butanol. It was found that biodiesel synthesis by the enzymatic transesterification of waste rapeseed oil rich in free fatty acid with butanol can be very effective if the catalysis is carried out in two steps. Both transesterification steps were catalysed by Lipozyme RM IM. The optimal conditions for the first step were determined: temperature of 39 C, butanol and oil molar ratio of 4.5, lipase concentration of 6%, and reaction time of 9.8 h, with an expected yield of 60.1%. The removal of glycerol, enzyme renewal and subsequent addition of 7.8% lipase, with a 1.5 butanol and oil molar ratio and 8-h incubation at 39 C predicted a 96.7% yield and resulted in a 96.6% butyl ester yield
Internet: https://doi.org/10.1016/j.renene.2015.10.024
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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