<p>A process for the gasification of wet biomass comprises feeding the wet biomass at a temperature of at most 370 °C and a pressure of at least 22.1 MPa (absolute) to a reactor. The reactor comprises a bed of solid particles suspended in a fluid. The temperature of the feed is increased in the presence of the bed of suspended solid particles to a temperature of at least 375 °C, forming supercritical water and converting in the presence of the supercritical water at least a portion of the organic materials present in the wet biomass into fluid gasification product.</p>