Abstract

Supercritical water gasification of ethanol production residue from eucalyptus powder was studied over a graphite-supported 5wt% ruthenium catalyst (Ru/G) in a batch reaction system. The complete gasification of 0.1g of the residue proceeded over 0.05g of Ru/G at 673K in supercritical water with 0.5gcm−3 water density. The gasification behavior of the residue from eucalyptus was compared with that from Japanese cedar to evaluate the potential of fuel gas production from bioethanol production residue. The gasification profiles (gaseous yield and selectivity) of the resides were well reproduced by the linear combination of those of woody biomass fractions (lignin and cellulose).

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