Biofuels:What is beyond ethanol and biodiesel?

摘要

Ethanol made by fermenting sugars from sugarcane or grains is the primary liquid renewable fuel used today-blended or neat (100%).Biodiesel (vegetable oil methyl ester) is the other,smaller volume renewable fuel,also used blended or neat.With this great start,the next step is to ferment ethanol (or butanol) from cellulose-derived sugars,to hydrocrack natural oils and fats into diesel-range hydrocarbons,and to gasify biomass and catalytically synthesize both diesel and gasoline fuels (ther-mochemical platform).