NOVELTY - The method for carbonizing organic substances such as log, branch timber, nutshells and/or palm chip, comprises adding a catalyst for the dissolution of the substances, and heating the substances within a closed pressure reservoir (10) up to 250 degrees C under addition of oxygen under pressure. A pressure relief is reached when reaching a given pressure in an interior (17) of the receiver by opening an adjustable valve and gases are allowed to flow from the reservoir. The valve is again closed, if a predetermined pressure in an interior of the receiver is fallen below.    USE - The method for carbonizing organic substances such as log, branch timber, nutshells and/or palm chip (claimed).    ADVANTAGE - The method is capable of economically carbonizing large amount of organic substances e.g. log in a less-time consuming manner.    DETAILED DESCRIPTION - The method for carbonizing organic substances such as log, branch timber, nutshells and/or palm chip, comprises adding a catalyst for the dissolution of the substances, and heating the substances with in a closed pressure reservoir (10) up to 250 degrees C under addition of oxygen under pressure. A pressure relief is reached when reaching a given pressure in an interior (17) of the receiver by opening an adjustable valve and gases are allowed to flow from the reservoir. The valve is again closed, if a predetermined pressure in an interior of the receiver is fallen below. The carbonization takes place until the pressure in the receiver is dropped to a predetermined pressure value and/or the temperature in the container is dropped to a predetermined value. In a first phase, the receiver is heated for 4-5 hours. The valve opens automatically when reaching a target pressure of 9-14 bar and gas escapes from the interior of the reservoir. The heating phase is continued up to reaching a target temperature of 400-500 degrees C. The gas escapes over the relief valve and the process continues exothermically without heating of the container. The pressure in the container sinks and the relief valve closes when falling below a desired value. Pressure and temperature in the container further sink and the procedure are terminated during reaching lower threshold values, the container is opened and the product is removed. The valve is adjustable to a pressure of 0.2-20 bar. An INDEPENDENT CLAIM is included for a device for the carbonizing of organic substances.    DESCRIPTION OF DRAWING(S) - The diagram shows a longitudinal sectional-view of a pressure reservoir for carbonizing organic substances.    Reservoir (10)    Cover (11)    Base (12)    Heating chamber (16)    Interior of the receiver. (17)