Reaction Rate Parameters for Supercritical Water Gasification of Various Biomass Species

Supercritical water gasification is a promising technology for the effective use of wet biomass including manures, food wastes, and sewage sludge. The authors have shown that the reaction kinetics in supercritical water gasification with and without activated carbon catalyst can be experessed using Arrhenius type first-order reaction rate. In this study, the reaction paremeters for various biomass species including chicken manure, swine manure, cattle maure, soy-bean hydrogen fermentation residue, food waste hydorgen fermentation residue, waste grass, and seaweed ethanol fermentation residue were determined, and compared. The result showed that the bioamss species can be categorized into some groups in terms of its reactivity in supercritical water and the effect of activated carbon catalyst.