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Type of publication: Tezės kitose duomenų bazėse / Theses in other databases (T1c)
Field of Science: Miškotyra / Forestry (A004)
Author(s): Šantaraitė, Miglė
Title: Simultaneous oil extraction and trans-esterification of high acidity rapeseed oil
Is part of: Trends in green chemistry. Wilmington, DE : iMed Pub, 2018, Vol. 4
Extent: p. 64-64
Date: 2018
Note: Joint Event on 8th International Conference on Environmental Chemistry and Engineering & 7th Edition of International Conference on Green Energy, Green Engineering and Technology September 20-22, 2018 Berlin, Germany
Abstract: Simultaneous extraction and trans-esterification of high-acidity (3 mgKOH/g) rapeseed oil, using a mineral diesel (as an extraction solvent) and methanol mixture, have been investigated aiming to obtain a mixture of mineral diesel and biodiesel fuel which can currently be used as fuel. Mineral diesel and rapeseed oil ratio in mixture was 9:1 (w/w). Effectiveness of different biocatalysts-lipases (Lipozyme RM IM, Lipozyme TL IM, Novozyme 435, Lipozyme 435, Lipolase 100 L, Lecitase Ultra, Resinase A 2X, Palatase 20000 L, Lipozyme CALB, Liopozyme TL 100 L, Lipex 100L), suitable for in-situ processes, were studied and the most effective was selected. The conversion of rapeseed oil to biodiesel fuel was evaluated in the presence of a lipase from Lipozyme TL IM (Thermomyces lanuginosus). We aimed to extract the maximum amount of rapeseed oil, as well as to fully convert the oil to methyl esters. At the optimal conditions the 99.9% of the rapeseed oil was extracted from rapeseed. The maximum methyl esters yield was 98.99% (degree of trans-esterification more than 96.5%) after 5 h of reaction. The quantities of monoglycerides (0.38%), diglycerides (0.06%) and triglycerides (0.00%) remaining in the product comply with the requirements of standard for biodiesel fuel. It was found that the optimum conditions for simultaneous oil extraction and trans-esterification using methanol and lipase-Lipozyme TL IM were the following: molar ratio of methanol to oil-5:1, amount of lipase preparation Lipozyme TL IM-7%, duration of reaction-5h, temperature-23±2°C
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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