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Old 05-01-2006, 02:32 AM   #4
Rock Steady
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Join Date: May 2005
Location: Silicon Valley
Posts: 784
Rising energy prices and environmental problems have led to increased interest in alcohol as a fuel. Much attention has been placed on the prospects of using ethanol as fuel for cars.

The first four aliphatic alcohols (methanol, ethanol, propanol, and butanol) are of interest as fuels because they can be synthesized biologically, and they have characteristics which allow them to be used in current engines.

As of 2005, production of all four alcohols from petroleum is cheaper than fermentation and extraction from biomass, but this is expected to change as fermentation and extraction processes become more efficient while petroleum becomes more expensive.

http://en.wikipedia.org/wiki/Alcohol_fuel
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