A new process can turn the lignin portion of biomass into affordable fuels. Lignin provides rigidity to a plant cell wall, but that rigidity makes it suitable only for burning for generating heat. Wayne Hicks at NREL describes how the new “CELF” pre-treatment process deconstructs and fractionates the lignin and other parts of biomass to yield a diverse range of products: alcohols, esters, carboxylic acids, and hydrocarbons. It could enable the … [Read more...]