NOVELTY - An gasification-gas production arrangement includes stages (I,II) (1) for drying biomass, a grinding stage (3) for grinding biomass to grits of less than 1000 mu m, a device for pneumatically transporting the finely powdered biomass in a dense flow with a loading density of 60-350 kg/m3 to the entrained-flow gasifier (4). In the gasifier, the reaction space is limited by a liquid-cooled heat shield, for gasification of biomass with a gasification agent containing free oxygen at 1200-1600 degrees C and 6 MPa or more to obtain gasification gas.    USE - Arrangement is used for production of gasification gas from biomass e.g. timber, straw, grass, residues from sugar industries, residues from fermentation industries, and residues from biomethane production, having ash content of greater than 2% by using entrained-flow gasifier, for use in methanol synthesis, synthesis of dimethyl ether, Fischer-Tropsch synthesis, ammonia synthesis, and gas turbine applications (all claimed).    ADVANTAGE - The arrangement enables simultaneous production of chemical products and electric power.    DETAILED DESCRIPTION - An gasification-gas production arrangement includes stage (I) for drying biomass at 110 degrees C to reduce the moisture content from 30-60% to 10-15%, stage (II) for drying biomass at 250-350 degrees C, a grinding stage for grinding biomass to grits of less than 1000 mu m, a device for pneumatically transporting the finely powdered biomass in a dense flow with a loading density of 60-350 kg/m3 to the entrained-flow gasifier. In the gasifier, the reaction space is limited by a liquid-cooled heat shield, for gasification of biomass with a gasification agent containing free oxygen at 1200-1600 degrees C and 6 MPa or more to obtain gasification gas. INDEPENDENT CLAIMS are included for the following:    (1) method for production of gasification gas; and    (2) method for production of chemical products.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the arrangement used for production of gasification gas.    Drying stage (1)    Thermal treatment device (2)    Grinding stage (3)    Entrained-flow gasifier (4)    Cleaning unit (5)