NOVELTY - Production of bio-coal from biomass material involves: (i) drying biomass materials to reduce (or eliminate) the excess moisture from biomass material using at least one conditioning; and (ii) making bio-coal from biomass material using at least one reactor torrefaction.    USE - The method or device is useful for production of bio-coal from biomass material (claimed).    ADVANTAGE - The method for producing bio-coal is environmental-friendly. It can avoid the emission of greenhouse gases and pollutants, which usually generated during the combustion of conventional coal.    DETAILED DESCRIPTION - Production of bio-coal from biomass material involves: (i) drying biomass materials to reduce (or eliminate) the excess moisture from the biomass material using at least one conditioning; and (ii) making bio-coal from biomass material using at least one reactor torrefaction; where the methodology for producing bio-coal from biomass material consists of the following steps prior to step (ii): (i) ravaging biomass material into smaller pieces; (ii) mixing the biomass material was crushed using at least one tool to mix; (iii) compression of biomass material that disintegrates into pellet size; (iv) material cooling biomass pellets made at room temperature; (v) examination and material separation of biomass pellets made of tiny particles; and (vi) drying biomass materials that are made pellets. An INDEPENDENT CLAIM is included for devices for producing bio coal from biomass material, comprising at least one reactor for torrefaction, where torrefaction reactor comprises a carrier that is positioned in the drum in the torrefaction reactor, material input for biomass materials that will be incorporated into the drum in the torrefaction reactor, material output to release the biological coal produced from torrefaction reactor and a layer of insulation on the outer shell in the torrefaction reactor to prevent the release of heat due to the environment; further characterized that matter carbonized biomass sustainably on torrefaction reactor in the temperature range of 270-650 degrees C using a heated nitrogen gas.