Hydrogen production reaction with a metal oxide catalyst in high pressure high temperature water

摘要

Hydrogen production from biomass was attempted in high pressure high temperature water at 573 K by adopting partial oxidation to increase the yield of H_(2) via CO production in the presence of ZnO. The results revealed that an addition of H_(2)O_(2) as an oxidant to the reaction of glucose and sugarcane bagasse brought about the trend of increasing the yields of H_(2), CO, and CO_(2). However, the sensitivity of H_(2) yield on H_(2)O_(2) amount was different from those of CO and CO_(2), namely the excess amount of H_(2)O_(2) tends to decrease the H_(2) yield with giving a maximum at a certain H_(2)O_(2) amount. These indicated that the controllability of partial oxidation would be a key factor for maximizing the H_(2) yield through biomass conversion by partial oxidative gasification in high pressure high temperature water