Apparatus and pyrolysis process for the preparation and / or purification of coal

The invention relates to a device for producing and / or purification of carbon from a carbon-containing starting material (1). The device is characterized in that at least the starting material (1) receiving the reaction vessel (20) is movably mounted and a variety of response positions (II.1-II.N) in an oven space (10) is movable. The invention further relates to a pyrolysis process for the production of carbon from a carbon-containing starting material (1) and / or for the purification of coal.