Impact of simultaneous ETBE and ethanol addition on motor gasoline properties

Karonis, D; Anastopoulos, G; Lois, E; Stournas, S

dc.contributor.author	Karonis, D	en
dc.contributor.author	Anastopoulos, G	en
dc.contributor.author	Lois, E	en
dc.contributor.author	Stournas, S	en
dc.date.accessioned	2014-03-01T01:58:43Z
dc.date.available	2014-03-01T01:58:43Z
dc.date.issued	2009	en
dc.identifier.issn	19463952	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28710
dc.subject.other	Chemical compositions	en
dc.subject.other	EC Directives	en
dc.subject.other	Ethanol addition	en
dc.subject.other	Ethyl tert-butyl ether	en
dc.subject.other	EU countries	en
dc.subject.other	European Union	en
dc.subject.other	Gasoline blends	en
dc.subject.other	Gasoline samples	en
dc.subject.other	Gasoline-ethanol blend	en
dc.subject.other	Lower vapor pressure	en
dc.subject.other	Mediterranean region	en
dc.subject.other	Motor gasolines	en
dc.subject.other	Octane numbers	en
dc.subject.other	Positive effects	en
dc.subject.other	Specification limit	en
dc.subject.other	Transport fuel	en
dc.subject.other	Bioethanol	en
dc.subject.other	Blending	en
dc.subject.other	Distillation	en
dc.subject.other	Ethers	en
dc.subject.other	Gasoline	en
dc.subject.other	Hydrostatic pressure	en
dc.subject.other	Vapor pressure	en
dc.subject.other	Vapors	en
dc.subject.other	Ethanol	en
dc.title	Impact of simultaneous ETBE and ethanol addition on motor gasoline properties	en
heal.type	journalArticle	en
heal.identifier.primary	10.4271/2008-01-2503	en
heal.identifier.secondary	http://dx.doi.org/10.4271/2008-01-2503	en
heal.publicationDate	2009	en
heal.abstract	This study examines the impact of ETBE and ethanol addition on the main properties of motor gasoline. European Union mandates the use of biofuels in all transport fuels, according to the 2003/30/EC Directive. The addition of ethanol, a known octane enhancing component, in small proportions significantly increases the vapor pressure of the final gasoline, exceeding the maximum specification limits. ETBE (ethyl tert-butyl ether) is on the other hand an excellent but expensive octane enhancing component with beneficial impact on vapor pressure of the final gasoline. This paper examines the ability of ETBE to act as a stabilizer in gasoline - ethanol blends. Two gasoline samples with different chemical compositions and characteristics were prepared by blending basic refinery components. In each sample, ETBE was added in concentrations of 2, 4, and 6% V/V respectively. In each of these ETBE - gasoline blends, ethanol was added in concentrations from 1 to 6% V/V in 1% steps. The properties measured were composition, density, distillation characteristics, vapor pressure and octane numbers (RON and MON). In all cases, the addition of ETBE and ethanol had positive effect on octane numbers. The vapor pressure was increased due to ethanol addition, but the blends with ETBE had lower vapor pressures compared to the blends without ETBE. The higher the ETBE concentration, the lower the increase in vapor pressure of the final blend (0.4 to 2.7 kPa, depending on ETBE and ethanol content). Therefore, the use of ETBE as stabilizer can contribute to the introduction of bioethanol in motor gasoline, especially in the warmer EU countries of the Mediterranean Region. © 2008 SAE International.	en
heal.journalName	SAE International Journal of Fuels and Lubricants	en
dc.identifier.doi	10.4271/2008-01-2503	en
dc.identifier.volume	1	en
dc.identifier.issue	1	en
dc.identifier.spage	1584	en
dc.identifier.epage	1594	en