About: Biodiesel: the influence of dealcoholization on reaction mixture composition after neutralization of catalyst by carbon dioxide

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Biodiesel is commonly produced by catalytic transesterification (reversible reaction) of oil/fat with excess alcohol. In the case of the basic catalyst, strong acid is usually used for catalyst neutralization; however acid converts soap to fatty acids (increases the acid number). In this paper, the utilization of carbon dioxide for catalyst neutralization is described. The advantage is that, the carbon dioxide does not transform soaps to fatty acids, but only neutralizes the catalyst (acid number is always less than 0.2 mg KOH/g). The neutralization takes place due to by an excess of CO2, which transforms the catalyst to hydrogencarbonate. However during the alcohol removal by distillation from the whole reaction mixture, hydrogencarbonate is transformed to carbonate (catalytic properties). But the alcohol removal is fast enough that the reverse reaction to glycerides does not occur. The catalyst neutralization by CO2 is environmentally friendly (consumed CO2) and it can be used for all types of raw materials, alkali hydroxides and alcohols. Biodiesel is commonly produced by catalytic transesterification (reversible reaction) of oil/fat with excess alcohol. In the case of the basic catalyst, strong acid is usually used for catalyst neutralization; however acid converts soap to fatty acids (increases the acid number). In this paper, the utilization of carbon dioxide for catalyst neutralization is described. The advantage is that, the carbon dioxide does not transform soaps to fatty acids, but only neutralizes the catalyst (acid number is always less than 0.2 mg KOH/g). The neutralization takes place due to by an excess of CO2, which transforms the catalyst to hydrogencarbonate. However during the alcohol removal by distillation from the whole reaction mixture, hydrogencarbonate is transformed to carbonate (catalytic properties). But the alcohol removal is fast enough that the reverse reaction to glycerides does not occur. The catalyst neutralization by CO2 is environmentally friendly (consumed CO2) and it can be used for all types of raw materials, alkali hydroxides and alcohols. (en)
Title	Biodiesel: the influence of dealcoholization on reaction mixture composition after neutralization of catalyst by carbon dioxide Biodiesel: the influence of dealcoholization on reaction mixture composition after neutralization of catalyst by carbon dioxide (en)
skos:prefLabel	Biodiesel: the influence of dealcoholization on reaction mixture composition after neutralization of catalyst by carbon dioxide Biodiesel: the influence of dealcoholization on reaction mixture composition after neutralization of catalyst by carbon dioxide (en)
skos:notation	RIV/00216275:25310/12:39895260!RIV13-MSM-25310___
http://linked.open...avai/predkladatel	Fakulta chemicko-technologická
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021627502)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2013
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	125018
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/12:39895260
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	methanol; flash point; carbon dioxide; neutralization; biodiesel (en)
http://linked.open.../riv/klicoveSlovo	flash point biodiesel carbon dioxide methanol neutralization
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[7CB1A5F075F8]
http://linked.open...i/riv/nazevZdroje	Fuel
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	2012
http://linked.open...v/svazekPeriodika	96
http://linked.open...iv/tvurceVysledku	Hájek, Martin Kwiecien, Jiří Skopal, František
http://linked.open...ain/vavai/riv/wos	000301853900009
http://linked.open...n/vavai/riv/zamer	Pokročilé analytické a separační metody a jejich aplikace v diagnostice a technologii živých a neživých materiálů
issn	0016-2361
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.fuel.2012.01.037
http://localhost/t...ganizacniJednotka	25310
is http://linked.open...avai/riv/vysledek of	Biodiesel: the influence of dealcoholization on reaction mixture composition after neutralization of catalyst by carbon dioxide

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