Butanol

Butanol is much better (more energy content, can be used in existing cars up to 100%, can be shipped in existing pipelines), and is finally starting to get a little more recognition.

Ethanol Enthusiasts, Arnold Kling | EconLog | Library of Economics and Liberty 2009

Butanol is a cousin of Ethanol but it packs more energy per gallon and works better with the existing infrastructure for delivering gas to the pump.

Sustainable Design Update » Blog Archive » New Biofuel - Cobalt Biobutanol 2008

Butanol as a fuel has been around a long time, but the cost to produce it was never competitive with gasoline.

A Competitor For Ethanol? Kerry A. Dolan 2006

Butanol, a four-carbon alcohol, can also be produced from nonpetroleum sources.

1 Production and Use 1983

Butanol-acetone mixtures can also be produced by fermentation of starch - and sugar-containing raw materials.

1 Production and Use 1983

Butanol can go into rubber and plastics, and in that role it not only replaces oil but also becomes a "carbon sink," a place where carbon dioxide, a greenhouse gas, can be stored after it is pulled out of the atmosphere.

NYT > Home Page By MATTHEW L. WALD 2011

Butanol is a global 1.2 billion gallon market; the chemical sells for anywhere from $5.50 to $8 a gallon.

Forbes.com: News Forbes 2011

Butanol phases out of water at 7. 7% concentration.

Consumer Energy Report ? R-Squared Robert Rapier 2010

"Butanol has some advantages," said Ken Reardon, a CSU professor of chemical and biological engineering.

Vail Daily - Top Stories By Mark Jaffe The Denver Post 2010

Butanol is still about 15 percent less powerful than gasoline.

Vail Daily - Top Stories By Mark Jaffe The Denver Post 2010