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Volatility and Phase Stability of Petrol Blends with Ethanol by Zlata Mužíková; Milan Pospíšil; Gustav Šebor is a Engineering article available to read on EtoBox.

What is Volatility and Phase Stability of Petrol Blends with Ethanol about?

Blending ethanol in to petrol can be associated with problems related to volatility and phase stability of the blends. Ethanol up to 20 vol% in petrol forms an azeotropic mixture with hydrocarbons. Ethanol has affinity to water and air humidity and it increases the water solubility in ethanol-petrol blends. In this work, the influence of ethanol up to 10 vol%, ETBE up to 10 vol% and hydrocarbon composition over volatility, distillation characteristics and miscibility of ethanol-petrol blends with water was studied. It was found that higher content of saturated hydrocarbons in petrol increased the vapour pressure of azeotropic ethanol blend. Aromatics and alkenes influenced the azeotrope vapour pressure, phase separation temperature and ethanol extraction in a positive way. The results showed that the ETBE can soften effects of the ethanol blending to petrol. ETBE decreased the vapour pressure and the phase separation temperature of the ethanol-petrol blends.

Who reads Volatility and Phase Stability of Petrol Blends with Ethanol?

Author

Zlata Mužíková; Milan Pospíšil; Gustav Šebor

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0016-2361)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)