GASIFICATION REACTOR AND METHOD FOR ENTRAINED-FLOW GASIFICATION

摘要

The invention relates to a method and a device for obtaining synthesis gas by the gasification of liquid or finely comminuted, solid fuels at a pressure of 0.3 to 8 Mpa at a temperature in the range of 1200 to 2000°C with oxygen-containing, gaseous gasification agents in a cooled reactor (3), wherein liquid slag is deposited on the walls thereof. The reactor is located in a first pressure container. The obtained synthesis gas is generated in a first reaction chamber (2), arranged at the top of the reactor. In the upper region thereof, the substances to be used are fed. Liquid slag is deposited on the side walls thereof and can run off freely without the surface of the slag solidifying. At the bottom side thereof, an opening (6) with a dripping edge (7) is located, from where the obtained synthesis gas can be withdrawn toward the bottom and the liquid slag running down can drain. A second chamber (8) connects to the opening at the bottom, the synthesis gas being kept dry and being cooled in said second chamber (8). A water film that is produced by suitable devices and that falls freely delimits the second chamber. A third chamber (15) connects to the second chamber at the bottom and in it cooling takes place by adding water to the synthesis gas. A water bath (21) connects to the bottom of the third chamber, the drained and already solidified or still liquid slag particles dropping into said water bath. At the bottom or on the side of the third chamber (15), but above the water bath (21), the generated and cooled synthesis gas is withdrawn from the pressure container (4).