Method and plant for pyrolizing of hydrocarbon-containing waste products

A process for pyrolyzing hydrocarbon-containing waste products which comprises:

• providing only one pyrolysis furnace having an openable bottom, an upper end forming a dome, and a double-wall with a helically arranged hot-air helical duct;
• a discharge pipe leading vertically out the furnace dome;
• a loading station outside the furnace;
• a receiving device initially located at the loading station;
• and an unloading station;
• introducing a material to be pyrolyzed onto the receiving device;
• subsequently introducing the receiving device from below into the pyrolysis furnace through the open bottom and thereby tightly closing the bottom of the pyrolysis furnace;
• heating the furnace to a pyrolysis temperature of approximately between 450° C. and 550° C. with burners generating hot air passing helically from the bottom upward in the pyrolysis furnace through the helically arranged hot-air helical duct;
• pyrolyzing completely the material thereby producing in-part pyrolysis gases and residues;
• extracting the hot air at the upper end of the furnace;
• discharging the pyrolysis gases via the discharge pipe;
• after pyrolysis has concluded completely, opening the bottom and removing downward the receiving device;
• moving the receiving device into the unloading station;
• and
• discharging the residues at the unloading station.