Water tolerance and ethanol concentration in ethanol-gasoline fuels at three temperatures

被引：32

作者：

de Doz, MBG ^{[1
]}

Bonatti, CM ^{[1
]}

Sólimo, HN ^{[1
]}

机构：

[1] Univ Nacl Tucuman, Fac Ciencias Exactas & Tecnol, Dept Fis, RA-4000 San Miguel De Tucuman, Argentina

来源：

ENERGY & FUELS | 2004年 / 18卷 / 02期

关键词：

D O I：

10.1021/ef034040a

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Several gasoline-ethanol-water multicomponent systems at temperatures of 283.15, 293.15, and 313.15 K were studied, to obtain water tolerances and ethanol concentrations at equilibrium in the upper gasoline-rich phase. The lower aqueous phase was not studied, because of its very small volume. The ethanol and water concentrations were determined by a chromatographic method, using the external standard method for quantification, whereas no other gasoline component was determined. Moreover, the influence of the gasoline volume in the tank was simulated and studied in the laboratory. From experimental results, we conclude that the ethanol concentration decreases as the tank becomes more empty, whereas it is only slightly affected by the temperature within the studied temperature range. A similar behavior was observed for the water tolerance, when the water volume inside the tank corresponds to 0.5 vol % of water. In addition, the loss of ethanol that is drawn into the aqueous phase diminishes dramatically when the water volume in the tank diminishes, and the loss of ethanol becomes negligible when this volume corresponds to less than or equal to0.05 vol % of water.

引用

页码：334 / 337

页数：4

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