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A kinetics study of the simultaneous methanolysis and hydrolysis of triglycerides

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dc.title A kinetics study of the simultaneous methanolysis and hydrolysis of triglycerides en
dc.contributor.author Pecha, Jiří
dc.contributor.author Šánek, Lubomír
dc.contributor.author Fürst, Tomáš
dc.contributor.author Kolomazník, Karel
dc.relation.ispartof Chemical Engineering Journal
dc.identifier.issn 1385-8947 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2016
utb.relation.volume 288
dc.citation.spage 680
dc.citation.epage 688
dc.type article
dc.language.iso en
dc.publisher Elsevier BV
dc.identifier.doi 10.1016/j.cej.2015.12.033
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S1385894715017040
dc.subject Biodiesel en
dc.subject FAME en
dc.subject Kinetics en
dc.subject Saponification en
dc.subject Tetramethylammonium hydroxide en
dc.description.abstract Transesterification of triglycerides (oils and fats) catalyzed by bases is a common method for production of fatty acid methyl esters (FAME) - a renewable fuel (biodiesel) and basic oleochemical. Hydrolysis of esters - saponification - represents the main side reaction. Saponification leads to catalyst deactivation and impedes products purification. In this work, kinetics of the competing triglyceride hydrolysis and methanolysis (i.e. transesterification) is investigated. Furthermore, an alternative organic catalyst - tetramethylammonium hydroxide (TMAH) - is compared with potassium hydroxide and sodium methoxide. TMAH is less active but the methanolysis is more selective towards FAME formation and hydrolysis proceeds at a slower rate in comparison to the inorganic catalysts. FAME are less susceptible to hydrolysis than glycerides. A simple mathematical model assuming irreversibility of all reactions is capable to describe the measured data well (40-60°C, TMAH concentration 0.5-1.5wTMAH/woil, molar ratio methanol:oil=6). © 2015 Elsevier B.V.. en
utb.faculty Faculty of Applied Informatics
dc.identifier.uri http://hdl.handle.net/10563/1005780
utb.identifier.obdid 43873868
utb.identifier.scopus 2-s2.0-84952685180
utb.identifier.wok 000370085900070
utb.identifier.coden CMEJA
utb.source j-scopus
dc.date.accessioned 2016-04-12T11:51:55Z
dc.date.available 2016-04-12T11:51:55Z
dc.description.sponsorship CEBIA-Tech
dc.description.sponsorship NPU I by Ministry of Education of the Czech Republic [MSMT-7778/2014]; European Regional Development Fund under CEBIA-Tech [CZ.1.05/2.1.00/03.0089]
utb.contributor.internalauthor Pecha, Jiří
utb.contributor.internalauthor Šánek, Lubomír
utb.contributor.internalauthor Kolomazník, Karel
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