Heating Value and Waste Gas Flow Controlled Exhaust Gas Combustion for a 150-Ton RH-TOP Degasser at Big River Steel

摘要

Big River Steel started up in Osceola, Ark., USA, in 2016. The entire plant was supplied by SMS group. A 150-ton RH-TOP unit was selected for producing steels with ultralow carbon contents, achieved during the decarburization process. Meanwhile, considerable amounts of CO are generated. U.S. federal regulations require that combustible process gases have to be burnt with a heating value of at least 200 BTU/scf. To follow that regulation, a new flare stack burner concept was developed to combust CO-containing exhaust gases and reduce the environmental impact in the form of CO_2 emissions.