Possibility of hydrogen generation using supercritical water

The higher decomposition capability of supercritical water (SCW), which is water in the state over the critical point of 647.3 K and 22.1 MPa, was used for hydrogen generation in the scope of considering energy systems for a sustainable society. Decomposition of methanol, acetic acid, ethanol and glycerin was carried out as an experiment for acquiring more fundamental information. In all experimental conditions, hydrogen was confirmed from the extracted gas. SCW technology may enable hydrogen production using biomass resources if materials & energy conversion coefficient have more than adequate values.