Comment 620

By Norm Erickson (anonymous) | Posted June 19, 2006 at 11:31:59

Regarding ethanol: We have lost our way. Ethanol makes sense as an oxygenate replacement for MTBE, but as a transportation fuel it is hopeless. It appears that a "better alcohol", butanol, can now be produced with a two stage fermentation process from a wide range of biomass. Read about it at The advantages are lower vapor pressure (safer than ethanol or gasoline), higher energy content than ethanol, does not require new infrastructure (separate pumps, redesigned fuel/engine systems), and can be used in blends from 1% to 100% without problems in any car. There is so much money flowing into ethanol that it seems to have blinded the market to butanol's possibilities.

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