Figure 1. Sustainable Biodiesel and Hydrogen Energy Cycles (image) Tokyo Institute of Technology Share Print E-Mail Caption One of the main waste by-products of the biodiesel industry, glycerol, can be used as a raw material for the generation of valuable dihydroxyacetone and hydrogen, the latter of which can be used as 100% clean fuel. Credit Applied Catalysis B: Environmental, Tokyo Tech Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.