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NREL study probes emissions impact of butanol-gasoline blends in light-duty vehicles

Green Car Congress

In the study, published in the ACS journal Environmental Science & Technology , they splash-blended certification gasoline with alcohols to produce four blends: ethanol (16 vol%); n-butanol (17 vol%); i-butanol (21 vol%); and an i-butanol (12 vol%)/ethanol (7 vol%) mixture.

Gasoline 236
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Perspective: US Needs to Transition to Hydrous Ethanol as the Primary Renewable Transportation Fuel

Green Car Congress

d) further provides for alcohol blends as follows: Special provisions for alcohol blends. (1) In February, 2009, the US EPA granted Renergie, Inc. Initial tests conducted in Europe have confirmed that hydrous ethanol can be blended effectively with gasoline without phase separation or other problems.