Nearly every cellulosic ethanol company claims it will be able to produce fuel at $1 or less a gallon in a few years. William Roe, CEO of Coskata, in a meeting on Monday explained how his Warrenville, Ill., company will do it.
It's one of the more interesting processes out there, because it combines both biological (i.e., microbes) and thermochemical (heat and chemicals) processing. Menlo Park, Calif.-based ZeaChem is also taking a mixed approach, but it combines thermochemical and biological processes in a different manner. Most other companies are using primarily chemical or biological processes. We don'… Read more