About: Combined effect of water and KOH on rapeseed oil methanolysis

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This paper deals with the effect of water and catalyst (KOH) amount on the quantity and quality of transesterification products of rapeseed oil by methanol, the methyl ester phase, and the side-product, the glycerol phase (i.e. density, viscosity, the mass fraction of glycerol, esters, soaps). The dependencies were described by statistical models. The transesterification was carried out at constant reaction conditions (90 min reaction time, 400 rpm, 60 °C). Twelve experiments with the independent factors, amount of potassium hydroxide (0.65-0.9 mg per gram of oil) and total amount of water (0.24-1.42 mg per gram of oil) naturally present in the reaction components or formed by the neutralisation reaction of free fatty acids and of added water. The analysis resulted in a set of linear and/or quadratic models consisting of statistically proven terms at a statistical significance level of 0.05 and demonstrated that ester in the glycerol phase increases with increasing amount of soaps. This paper deals with the effect of water and catalyst (KOH) amount on the quantity and quality of transesterification products of rapeseed oil by methanol, the methyl ester phase, and the side-product, the glycerol phase (i.e. density, viscosity, the mass fraction of glycerol, esters, soaps). The dependencies were described by statistical models. The transesterification was carried out at constant reaction conditions (90 min reaction time, 400 rpm, 60 °C). Twelve experiments with the independent factors, amount of potassium hydroxide (0.65-0.9 mg per gram of oil) and total amount of water (0.24-1.42 mg per gram of oil) naturally present in the reaction components or formed by the neutralisation reaction of free fatty acids and of added water. The analysis resulted in a set of linear and/or quadratic models consisting of statistically proven terms at a statistical significance level of 0.05 and demonstrated that ester in the glycerol phase increases with increasing amount of soaps. (en)
Title	Combined effect of water and KOH on rapeseed oil methanolysis Combined effect of water and KOH on rapeseed oil methanolysis (en)
skos:prefLabel	Combined effect of water and KOH on rapeseed oil methanolysis Combined effect of water and KOH on rapeseed oil methanolysis (en)
skos:notation	RIV/00216275:25310/10:39881584!RIV11-MSM-25310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021627502)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Hájek, Martin Skopal, František Kwiecien, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	251210
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/10:39881584
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Saponification; KOH; Water; Ethyl ester; Statistical analysis; Biodiesel (en)
http://linked.open.../riv/klicoveSlovo	Biodiesel Water KOH Statistical analysis Ethyl ester Saponification
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[815C2CBAF76E]
http://linked.open...i/riv/nazevZdroje	Bioresource Technology
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	101
http://linked.open...iv/tvurceVysledku	Hájek, Martin Kwiecien, Jiří Skopal, František
http://linked.open...ain/vavai/riv/wos	000274972600030
http://linked.open...n/vavai/riv/zamer	Pokročilé analytické a separační metody a jejich aplikace v diagnostice a technologii živých a neživých materiálů
issn	0960-8524
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	25310
is http://linked.open...avai/riv/vysledek of	Combined effect of water and KOH on rapeseed oil methanolysis Combined effect of water and KOH on rapeseed oil methanolysis Combined effect of water and KOH on rapeseed oil methanolysis

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