NOVELTY - Device (1) for producing carbon-containing products from biomass via hydrothermal carbonization, comprises: a first area (100) for providing, crushing and mixing at least one type of biomass; a second area (200) for processing and preparing the mixed biomass; a third area (300) for carrying out a reaction process under hydrothermal carbonization; and at least a fourth area for further processing the products of the process. The third area comprises at least three reactors. A first- and a second line system are conducted via at least a first- and a second heat exchanger, respectively.    USE - The device is useful for producing carbon-containing products, preferably carbon and synthesis gas from biomass via hydrothermal carbonization (all claimed).    ADVANTAGE - The device ensures continuous operation, and thus it allows continuous supply of the biomass into the device, and continuous discharge of the final products from the device.    DETAILED DESCRIPTION - Device (1) for producing carbon-containing products from biomass via hydrothermal carbonization, comprises: a first area (100) for providing, crushing and mixing at least one type of biomass; a second area (200) for processing and preparing the mixed biomass (5M); a third area (300) for carrying out a reaction process under hydrothermal carbonization; and at least a fourth area for further processing the reaction products of the process. The third area comprises at least three reactors, and a first line system is conducted via at least a first heat exchanger, so that at least one of the three reactors is filled directly, controlled and selectively filled with the mixed biomass of the second area. A second line system, in which a pump is used, is conducted via at least a second heat exchanger, so that the biomass of at least one activated reactor of the three reactors found during the process is controlled and selectively circulated, and the products in the activated reactor are pumped during the process, and where at least one stirrer is provided in the reactor, where the stirrer is used for mixing and circulating the biomass. A third line system is conducted via at least a third heat exchanger starting from the three reactors, and the reaction products after a completed reaction process are discharged directly from a reactor, in which the hydrothermal carbonization is completed, where the three reactors are removable, and are supplied via an expansion device to the fourth area. INDEPENDENT CLAIMS are also included for:    (1) producing the carbon-containing products from biomass via the hydrothermal carbonization, comprising providing the biomass of different types in the first area, transferring the crushed and mixed biomass in the first area to the second area with processing water and a catalyst, so that the content of the biomass-dry weight required for the reaction process is adjusted, providing the three reactors in the third area, filling at least one reactor with the biomass mixed with the processing water and the catalyst via the first heat exchanger, where the reactor is the activated reactor, in which the biomass is converted into the reaction products during the reaction process, and emptying at least one reactor, in which the reaction process is completed, pumping out the biomass, which is present in the activated reactor during the reaction process via the second heat exchanger by the pump, where the stirrer is provided in the reactor to carry out an additional mixing and circulation of the biomass, and emptying the fourth area after completion of the reaction process of the products of the reactor of the third area, and supplying via the third heat exchanger and the expansion device in the fourth area to a dewatering device and a dryer; and    (2) the carbon-containing reaction products produced by the above method.    DESCRIPTION OF DRAWING(S) - The figures 1 and 6 show a schematic representation of the device for carrying out the hydrothermal carbonization of the biomass, and the third area, respectively.    Device (1)    Program controller (10)    First area (100)    Second area (200)    Third area (300)