Successful use of ethanol-gasoline blends as engine fuel alternatives
depends on producing a stable homogeneous liquid fuel. It is crucial t
o avoid the phase separation phenomenon which occurs due to the hydrop
hilic character of alcohols and the solubility behavior of gasoline-al
cohol-water three-component system. In this study an industrial byprod
uct is introduced as a new blending agent to ethanol-gasoline fuels, a
nd its effects on the phase separation problem were investigated on sa
mples prepared by blending unleaded gasoline with 5, 10, 15, and 20% (
v/v) azeotropic ethanol, respectively.