Festbettvergaser für organische Abfälle

摘要

Organic waste such as scrap tires and waste plastics is burned and gasified in a fixed-bed gasification furnace. A gasifying agent comprising an oxygen-containing gas is supplied to the furnace charged with organic waste, volatiles present in the organic waste are pyrolyzed and gasified in the upper part of the furnace, residual fixed carbon is gasified by reaction with the gasifying agent in the lower part of the furnace, and the residual fixed carbon also serves to supply heat for the pyrolysis of the volatiles. The fixed-bed gasification furnace comprises two divided internal sections: a volatiles pyrolysis section for gasifying a portion of the residual fixed carbon by reaction with the gasifying agent and for pyrolyzing and gasifying the volatiles by heat so evolved; and a fixed carbon partial combustion/gasification section for reacting surplus fixed carbon with the gasifying agent.