NOVELTY - Converting biomass and any other organic material to useful energy gases, involves supplying feed of biomass, pre-heated particles to reactor (10), where the particles are subjected to superheated steam in the reactor, has temperature to cause pyrolysis of biomass and steam to produce energy gases including hydrogen and carbon monoxide. The reactor is formed of refractory non-corrosible material, and in that steam and production gases are passed through secondary reforming zone to convert any residual volatile organic compounds and superheated steam to energy gases.    USE - For conversion of biomass and other organic chemicals into energy gases (claimed). Also for conversion of biomass i.e. fibrous plant matter, carbon waste products and organic chemicals including any toxic compounds e.g. chlorinated organics into synthesis gas such as fuel gases.    ADVANTAGE - The method allows conversion of the biomass from a plant into a type of fuel gas that can be used for liquid fuel generation. The method yields a combustible fuel gas component and leaves only a small, usable ash residue. The synthesis gas produced by the method has significantly less sulfur component because of using feedstocks other than coal, thus synthesis gas is easier to purify.    DETAILED DESCRIPTION - Converting biomass and any other organic material to useful energy gases, involves supplying a feed of biomass, as dried, pre-heated particles to a reactor (10), where the particles are subjected to stream of superheated steam, where the stream of superheated steam in the reactor has a temperature to cause pyrolysis of the biomass and steam to produce energy gases including at least one of hydrogen and carbon monoxide. The reactor is formed of a refractory non-corrosible material, and in that steam and production gases are passed through a secondary reforming zone within reactor to convert any residual volatile organic compounds and superheated steam to energy gases. An INDEPENDENT CLAIM is included for a reactor for pyrolytic conversion of biomass particles and steam into energy gases including at least one hydrogen gas and carbon monoxide gas comprising: a tubular envelope having a tabular wall; a rotor disposed axially within envelope and defining an annular reaction zone within tubular wall; units for supplying biomass particles into reaction zone; a first annular space concentric with envelope and including a water injection port to receive water to be converted into superheated steam and at least one steam port leading to the reaction zone within the envelope; a first annular susceptor situated in an evacuated space and in thermal contact with the reaction zone in vessel and with first annular space; an inductor coil disposed outside tubular wall and aligned with at least first susceptor; a product gas outlet port; and an radio frequency (RF) current supply providing a controlled RF current to inductor coil; and the reactor envelope and rotor are formed of a refractory non-corrosible material; first annular susceptor is encapsulated in refractory non-corrosible material; a second annular space concentric with envelope includes at least one port to admit from reaction zone superheated steam plus product gases, and leads to product gas outlet port; and a second annular susceptor in RF communication with inductor coil is encapsulated in refractory material that defines an evacuated space, such that the second susceptor is in thermal contact with reaction zone and with second annular space.    DESCRIPTION OF DRAWING(S) - The figure shows diagram of biomass flash hydropyrolysis system.    Reactor vessel (10)    Inlet port (28)    Coil (34)    Screw drive (52)    Boiler (56)