Impact of antioxidant additives on the oxidation stability of diesel/biodiesel blends

Karavalakis, G; Stournas, S

dc.contributor.author	Karavalakis, G	en
dc.contributor.author	Stournas, S	en
dc.date.accessioned	2014-03-01T02:46:50Z
dc.date.available	2014-03-01T02:46:50Z
dc.date.issued	2010	en
dc.identifier.issn	0887-0624	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32880
dc.subject	Oxidative Stability	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Biodiesel blends	en
dc.subject.other	Butylated hydroxytoluene	en
dc.subject.other	Concentration of	en
dc.subject.other	Different origins	en
dc.subject.other	Fuel markets	en
dc.subject.other	Methyl esters	en
dc.subject.other	Oxidation stability	en
dc.subject.other	Phenolic antioxidant	en
dc.subject.other	Pro-oxidants	en
dc.subject.other	Rancimat	en
dc.subject.other	Stability behavior	en
dc.subject.other	Ultra-low sulfur diesel	en
dc.subject.other	Additives	en
dc.subject.other	Biodiesel	en
dc.subject.other	Diesel fuels	en
dc.subject.other	Esters	en
dc.subject.other	Oxidation	en
dc.subject.other	Phenols	en
dc.subject.other	Stability	en
dc.subject.other	Sulfur	en
dc.subject.other	Synthetic fuels	en
dc.title	Impact of antioxidant additives on the oxidation stability of diesel/biodiesel blends	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1021/ef1004623	en
heal.identifier.secondary	http://dx.doi.org/10.1021/ef1004623	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	This study investigates the impact of various synthetic phenolic antioxidant additives on the oxidation stability of several neat biodiesels, with special emphasis on the stability behavior of diesel/biodiesel blends with the employment of the modified Rancimat method (EN 15751). The performance of antioxidants was evaluated for treating five biodiesels, obtained from different origins, and their blends with a typical automotive ultra-low sulfur diesel. The examined blends were in proportions of 2, 3, 4, 5, 7, and 10% by volume, similar to those that currently penetrate the European fuel market. All biodiesel samples were treated with a constant concentration of 1000 mg/kg of each additive and then blended with diesel fuel. The experimental results revealed that an improvement in oxidation stability could be achieved with all antioxidants tested, while the efficiency of the antioxidants varied depending upon the different types and quality of biodiesel. Among the antioxidants evaluated, butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA) displayed the lowest effectiveness in neat methyl esters, whereas their use in biodiesel blends showed a greater stabilizing potential. It was also found that additives that significantly improve the stability of biodiesel may act as pro-oxidants in biodiesel blends. © 2010 American Chemical Society.	en
heal.publisher	AMER CHEMICAL SOC	en
heal.journalName	Energy and Fuels	en
dc.identifier.doi	10.1021/ef1004623	en
dc.identifier.isi	ISI:000278851200055	en
dc.identifier.volume	24	en
dc.identifier.issue	6	en
dc.identifier.spage	3682	en
dc.identifier.epage	3686	en