NOVELTY - Producing a combustible gas from a fuel, comprises: (a) converting the fuel into at least a combustible gas comprising methane (CH4), carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2), water (H2O) and higher hydrocarbons; (b) catalytically converting a part of higher hydrocarbons present in the combustible gas into at least CH4, CO, H2, CO2 or H2O; (c) after the catalytic conversion, removing an amount of H2O and CO2 from the combustible gas; and (d) after the removal of H2O and CO2, raising the pressure of the combustible gas with the aid of a compressor.    USE - The process is useful for producing a combustible gas from a fuel, such as biomass (claimed).    ADVANTAGE - The process: enables efficient compression, hence considerable amounts of CO2 and H2O is removed from the combustible gas before methanization; reduces the volume of the combustible gas that is to be compressed; reduces the energy consumption of the compressor; and needs less amount of oxygen.    DETAILED DESCRIPTION - Producing a combustible gas from a fuel, comprises: (a) converting the fuel at 600-1000 degrees C and at a pressure that is lower than 10 bar, into at least a combustible gas comprising methane (CH4), carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2), water ( H2O) or higher hydrocarbons; (b) catalytically converting of at least part of higher hydrocarbons present in the combustible gas, at a pressure that is lower than 10 bar, into at least CH4, CO, H2, CO2 or H2O; (c) after the catalytic conversion, removing an amount of H2O and CO2 from the combustible gas at a pressure that is lower than 10 bar; and (d) after the removal of H2O and CO2, raising the pressure of the combustible gas with the aid of a compressor. An INDEPENDENT CLAIM is included for a system for producing a combustible gas from a fuel, comprising: a reactor installation (1) that is fitted with an inlet opening (2) for the introduction of the fuel, where the reactor installation is designed for carrying our the step (a) and the reactor installation is also fitted with an outlet opening for the removal of the combustible gas; a reactor (45) that is fitted with an inlet opening connected to the outlet opening of the reactor installation, where the reactor is charged with a catalyst and is designed for carrying out the step (b), and the reactor is also fitted with an outlet opening for the removal of the combustible gas in which at least part of the higher hydrocarbons are catalytically converted; a separator installation (50) that is fitted with an inlet opening connected to the outlet opening of the reactor, where the separator installation is designed for carrying out the step (c), and the separator installation is also fitted with an outlet opening for the removal of the combustible gas without H2O and CO2 which are separated off; and a compressor (71) that is fitted with an inlet connected to the outlet opening of the separator installation, where the compressor is designed for raising the pressure of the combustible gas, and the compressor is also fitted with an outlet for the removal of the combustible gas at the raised pressure.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic representation of a system for the production of a combustible gas from a fuel.    Reactor installation (1)    Inlet opening of reactor installation (2)    Reactor (45)    Separator installation (50)    Compressor. (71)