TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
The Oxygenates Compounds Type Alcohols and Ethers as Reformulated Gasoline Substitutes
(Compusii oxigenati de tip alcooli si eteri ca substituenti ai benzinei reformulate)
Vol LXI • No. 4/2009
Mihaela Petre, Paul Rosca, Raluca-Elena Dragomir, Oana Mihai
Universitatea Petrol - Gaze din Ploiesti, Bd. Bucuresti nr. 39, Ploiesti
e-mail: mpetre@upg-ploiesti.ro

 Keywords   alcohols, ethers, gasolines, substitution, properties.

 Abstract
The partial substitution of gasolines with different loadings of alcohols and/or ethers represented recently the target of many discussions within scientific research area being as an alternative for both the reducing of fuel consumption from nonrenewable sources and a path to reduce the pollutant emissions of vehicles.
This paper consists of two parts. The first part presents the European legislation regarding the gasoline reformulation, a theoretical study concerning the physical and chemical properties of following alcohols: methanol (MeOH), ethanol (EtOH), isopropanol (IPA), tert-butyl alcohol (TBA) and ethers as: methyl tert-butyl ether (MTBE), tert-amyl methyl ether (TAME), ethyl tert-butyl ether (ETBE), tert-amyl ethyl ether (TAEE) and the properties of reformulated gasolines and the standardized analysis methods. Based on the experimental study, in the second part is illustrated the loading effect of 2, 4, 6, 7, 10% volume of gasoline with oxygenates type alcohols on the motor and research octane numbers, the density at 20°C, the distillation curves and Reid vapor pressure of these reformulated gasolines.

 Rezumat
Cerinţele legislative mondiale privind reducerea emisiilor poluante eşapate, criza petrolului şi nevoia de a reduce consumul de carburanţi au crescut rolul compuşilor oxigenaţi în reformularea benzinelor auto. În prima parte a lucrării s-au prezentat cele mai importante proprietăţi fizico-chimice ale alcoolilor şi eterilor, un studiu de literatură privind efectul utilizării acestor compuşi asupra unor proprietăţi ale benzinelor reformulate şi modul cum acestea influenţeaza performanţele vehiculelor, precum şi unele deosebiri între modul de testare sau calcul a unor mărimi, în funcţie de standardele care le specifică. În partea a doua a lucrării s-a exemplificat, prin rezultate experimentale efectul substituirii parţiale unei benzine clasice cu proportii de 2, 4, 6, 7, 10 %vol de metanol, etanol, isopropil alcool şi tert-butanol. Pentru fiecare amestec de benzină-alcool s-au determinat: cifrele octanice motor şi de cercetare, densitatea la 20ºC, curbele de distilare şi presiunea de vapori Reid.



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