Figure 2.1 The biomass resource base. Source: Naik, S.N., Vaibhav V. Goud, Prasant K. Rout, Ajay K. Dalai. 2010. Production of first and second generation biofuels: A comprehensive review, Renewable and Sustainable Energy Reviews, Volume 14, Issue 2, Pages 578-597.
Figure 2.2 Pathways for biomass energy. Source: Adapted from National Science Foundation. 2008. Breaking the Chemical and Engineering Barriers to Lignocellulosic Biofuels: Next Generation Hydrocarbon Biorefineries, Ed. George Huber. University of Massachusetts ...