Making Cellulosic Biofuels Competitive

摘要

As long as electric vehicles remain a niche, biofuels will be the most serious alternative to fossil fuels as a way to power cars and trucks. Millions of existing vehicles can run on fuels mixed with high concentrations of ethanol or biodiesel. The rest, hundreds of millions more in the U.S., can run on mixtures that include some ethanol.rnMaking vast quantities of biofuels without cutting into food supplies, however, means finding a way to use wood chips, corn stalks, and other forms of cellulosic biomass as feedstocks.