| abstract |
process for the production of methane and / or methane hydrate from biomass. The present invention relates to a process for the production of methane from biomass, wherein the following process stages are provided: a) From biomass a biomass porridge is prepared with the adjustment of an optimum dry mass fraction. , b) the biomass porridge is exposed to pressure, c) to liquefy the solid organic components of the biomass porridge, the biomass porridge is heated under pressure, d) the biomass porridge thus exposed to pressure and heated is subsequently heated at least at the critical ambient temperature proper to the mixture, e) under pressure and elevated temperature, the precipitated solids in this case are separated from the liquid phase and f) by means of a catalytic reactor, at least a portion of the fluid phase under elevated temperature and pressure is gasified to form a methane-rich gas. In this way a process is produced which has a very high degree of effect because a large part of the catalytic gasification disturbing substances, in particular salts, can be separated from the mixture by precipitation under supercritical conditions. In this way a high methane yield and a high reaction rate can be achieved simultaneously with a high catalyst working time for catalytic gasification. |