Subject: Why not extract ethanol using butane instead of distilling from water?

Ethanol is miscible with alkanes, like butane.  Why not float a layer of butane
over a fermented wine having ~10% ethanol, allowing some of the ethanol to
migrate into the butane, then distill the butane, leaving ethanol?  Butane has a
much lower heat of vaporization than water, so it seems like a repeated (or
continuous) extraction of ethanol using butane would be much more
energy-efficient than boiling the water-ethanol mixture to distill.

Re: Why not extract ethanol using butane instead of distilling from water?