METHOD FOR STARTING HIGH-PERFORMANCE ENTRAINED FLOW GASIFICATION REACTORS

摘要

The invention relates to a method for starting high-performance entrained flow gasification reactors with a combination burner and an ignition and pilot burner or a plurality of pulverized fuel burners that are disposed around the ignition and pilot burners for autothermal partial oxidation of pulverized solid fuels such as lignite and hard coal, petroleum coke or solid grindable carbon-containing residues that are pneumatically supplied to the combination burner with an oxygen-containing gasifying agent at operating pressures of up to 100 bar by means of an ignition flame, characterized in that the ignition and pilot burner is ignitedsubstoichiometrically with a fuel gas and the oxygen-containing gasification means and that the entrained flow gasification reactor is thus brought to the pressure intended and that an intended flow of a fuel gas is supplied thereafter with a partial flow of the oxygen--containing gasification agent at a substoichiometric ratio through the pulverized fuel lines leading to the pulverized fuel burner and ignited by the flame of the ignition and pilot burner and that next, the pulverized fuel intended for partial oxidation is supplied together with further oxygen-containing gasifying agent through the supply lines to the pulverized fuel burner and is ignited by the flame of the ignition burner and by the fuel gas flames at the pulverized fuel burner. The advantage of the invention is that the ignition heat needed can be significantly reduced, utilizing a combination burner or a multiple burner array.