Utilization of Waste Glycerol from Biodiesel Production as Catalyst for Supercritical Water Gasification

Y. Matsumura, S. Inoue, K. Kaminaka, H. Munetsuna & Y. Noda
In this study, waste glycerol from biodiesel pretreatment was tested as catalyst for the supercritical water gasification. Hydrogen fermentation solid residue of food waste (FW-HFSR) was gasified in the supercritical water gasification reactor with and without FW-HFSR. The FW-HFSR showed good catalytic effect. Considering reagent glycerol does not show any catalytic effect, KOH in waste glycerol should have worked as catalyst. Based on this finding, first-order rate equation has been developed, and good agreement with...