Patent ID: 7762200

Claim:
A method for starting a high-performance entrained flow gasification reactor with a combination burner containing an ignition and pilot burner and at least one pulverized fuel burner at a top of the reactor, for autothermal partial oxidation of pulverized solid fuels such as lignite and hard coal, petroleum coke or solid grindable carbon-containing residues, wherein for each fuel burner there are a plurality of fuel supply lines arranged for supplying an amount of pulverized fuel to the pulverized fuel burner with an oxygen-containing gasifying agent at operating pressures of up to 100 bar and temperatures ranging between 1,200° C. and 1,800° C. by means of an ignition flame, the method comprising the following steps in order: igniting the ignition and pilot burner substoichiometrically with a fuel gas and the oxygen-containing gasifying agent; bringing the entrained flow gasification reactor to a selected pressure of up to 100 bar; supplying through at least one of the plurality of fuel supply lines a flow of the fuel gas to the pulverized fuel burner; supplying an oxygen-containing gasification agent for the fuel gas at a substoichiometric ratio through a separate line to the pulverized fuel burner; igniting the fuel gas with a flame of the ignition and pilot burner; supplying the pulverized fuel together with further oxygen-containing gasifying agents through the fuel supply lines to the pulverized fuel burner, wherein the fuel supply lines are activated in successive steps only one supply line at a time in such a manner that after one of the fuel supply lines has been activated, an appropriate flow of gasification agent corresponding to a selected substoichiometric λ ratio is added first, with a next fuel supply line being activated only after igniting the pulverized fuel of a previously activated fuel supply line by the flame of the ignition and pilot burner and by fuel gas flames at the pulverized fuel burners.