Cellulosic bioethanol offers biggest long-term reduction in GHG emissions

摘要

A life cycle assessment of five bioethanol production pathways, conducted at Argonne National Laboratory (IL, USA), has revealed that ethanol derived from the feedstocks, corn, sugarcane, corn stover, switchgrass and Miscanthus can reduce life cycle GHG emissions, relative to petroleum gasoline, by 19-48%, 40-62%, 90-103%, 77-97% and 101-115%, respectively. The research group also reported similar trends with regard to fossil energy benefits of the five bioethanol pathways.