Storage stability and ageing effect of biodiesel blends treated with different antioxidants

Karavalakis, G; Hilari, D; Givalou, L; Karonis, D; Stournas, S

dc.contributor.author	Karavalakis, G	en
dc.contributor.author	Hilari, D	en
dc.contributor.author	Givalou, L	en
dc.contributor.author	Karonis, D	en
dc.contributor.author	Stournas, S	en
dc.date.accessioned	2014-03-01T01:37:08Z
dc.date.available	2014-03-01T01:37:08Z
dc.date.issued	2011	en
dc.identifier.issn	0360-5442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21458
dc.subject	Antioxidants	en
dc.subject	Biodiesel	en
dc.subject	Oxidation stability	en
dc.subject	Rancimat	en
dc.subject	Storage stability	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	Acid value	en
dc.subject.other	Ageing effects	en
dc.subject.other	Ageing process	en
dc.subject.other	Antioxidants	en
dc.subject.other	Biodiesel blends	en
dc.subject.other	Butylated hydroxytoluene	en
dc.subject.other	Fuel stability	en
dc.subject.other	Kinematic viscosity	en
dc.subject.other	Oxidation stability	en
dc.subject.other	Phenolic antioxidant	en
dc.subject.other	Propyl gallate	en
dc.subject.other	Rancimat	en
dc.subject.other	Storage stability	en
dc.subject.other	Automobile fuel tanks	en
dc.subject.other	Biodiesel	en
dc.subject.other	Oxidation	en
dc.subject.other	Phenols	en
dc.subject.other	Stability	en
dc.subject.other	Viscosity	en
dc.subject.other	Synthetic fuels	en
dc.subject.other	acid	en
dc.subject.other	antioxidant	en
dc.subject.other	biofuel	en
dc.subject.other	diesel	en
dc.subject.other	enzyme activity	en
dc.subject.other	experimental study	en
dc.subject.other	kinematics	en
dc.subject.other	oxidation	en
dc.subject.other	phenolic compound	en
dc.subject.other	stability analysis	en
dc.subject.other	viscosity	en
dc.title	Storage stability and ageing effect of biodiesel blends treated with different antioxidants	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.energy.2010.10.029	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.energy.2010.10.029	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	This study investigates the impact of various synthetic phenolic antioxidants on the oxidation stability of biodiesel blends with the employment of the modified Rancimat method. The experimental results revealed that an improvement in oxidation stability could be achieved with all antioxidants tested. Butylated hydroxytoluene (BHT) and butylated hydroxyanisol (BHA) displayed the lowest effectiveness in neat biodiesel, whereas their use in biodiesel blends showed a greater stabilizing potential. Propyl gallate (PG) and pyrogallol (PA) additives showed the strongest effectiveness in both the neat biodiesel and the biodiesel blends. During a naturally ageing process of the biodiesel blends which was conducted for a period of 10 weeks, samples were taken every 2 weeks to measure the oxidation stability, kinematic viscosity and acid value. This process was designed in such manner to simulate the ageing of an automotive biofuel stored in the fuel tank of a vehicle. The results showed a sharp decrease in fuel stability over time. Although limited effects were observed in viscosity, the acid value was significantly increased over time. The addition of antioxidants resulted in some increases in viscosity and acid value of the biodiesel blends. (C) 2010 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Energy	en
dc.identifier.doi	10.1016/j.energy.2010.10.029	en
dc.identifier.isi	ISI:000286781800040	en
dc.identifier.volume	36	en
dc.identifier.issue	1	en
dc.identifier.spage	369	en
dc.identifier.epage	374	en