Patent ID: 6372009
Filing Date: 2002-04-16
Classification: C21C,C22B,F23G,Y02P

Abstract:
A method of continuously treating CO and H2 containing off-gases generated by a molten metal refining process for steel occurring in a refining vessel, comprising:providing a reaction chamber for treating the process off-gases, providing conducting means from the refining vessel to the reaction chamber, conducting the off-gases to the reaction chamber, introducing O2 into the reaction chamber at a rate sufficient to oxidize substantially all the CO and H2 in the off-gases to CO2 and H2O, simultaneously introducing H2O into the reaction chamber at a rate sufficient to control the temperature within said reaction chamber so as to result in said oxidation reaction occurring within a temperature range of about 2000-2400Â° F. so as to substantially prevent the formation of oxides of nitrogen within said reaction chamber, and exhausting resultant gases from the reaction chamber which are substantially free of CO, H2, and oxides of nitrogen.