TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The inner and the outer reactors: are cylindrical; and are arranged coaxially with each other. The inner reactor exhibits a mantle, which is surrounded by an outer screw fixed on the mantle. The inner reactor together with the outer screw is arranged rotatably against the outer reactor. An inner screw is arranged within the mantle of the inner reactor. The inner screw is fixedly connected with the mantle. The inner screw is arranged rotatably against the mantle. The rotational movement of the inner screw is reversible. The mixing container exhibits a double mantle, which forms a chamber fillable with oil, where a heating device is arranged on the double mantle or in the chamber. A mantle of the outer reactor and at least the double mantle of the mixing container are vacuum insulated. At least one outlet for the outer reactor and at least one outlet for at least one collecting container are provided on the mantle of the inner reactor. The inner reactor is equipped with at least one fluidically driven piston, preferably hydraulic piston, with which the position of at least one evacuation slide arranged on the mantle of the inner reactor, changes. The inner reactor is made of a material of high thermal conductivity, preferably bronze alloy. At least one steam engine or steam boiler is mounted on the pressure reactor, which drives at least one current generator.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The biomass favors the heat exchange, and passes through the pressure reactor at least occasionally in opposite flow directions. Preferred Method: The preheating of the biomass is carried out in at least one heatable mixing container. The biomass is preheated to 200 degrees C, preferably 95-125 degrees C. The biomass treated in the pressure reactor, is coaxially passed through the pressure reactor and is subjected to rotational movement in the pressure reactor. The rotational movement of the biomass in the pressure reactor is carried out in one rotational direction or simultaneously in two opposite rotational directions. The preheating of the biomass in the mixing container is carried out using the waste heat obtained from the pressure reactor. The initial process of the conversion is carried out using at least one heated cartridge filled with thermal oil, placed in the pressure reactor. The water is fed into the biomass in the form of fog. EXAMPLE - No suitable example given.