One of the more interesting approaches toward wet biomass utilization is Hydrothermal Liquifaction https://en.wikipedia.org/wiki/Hydrothermal_liquefaction http

One of the more interesting approaches toward wet biomass utilization is Hydrothermal Liquifaction https://en.wikipedia.org/wiki/Hydrothermal_liquefaction https://en.wikipedia.org/wiki/Hydrothermal_liquefaction Basically you dump the wet biomass in a high pressure medium temperature reactor, and the water content of the biomass becomes supercritical, then acts as a solvent to break down the biomass into an usable crude oil (fairly similar to fossil crude, but with more oxygen content). This crude can be used directly as a fuel, or it can be upgraded (hydrogenated) into graded fuels like gasoline.