Título

DILUTED OXYGEN COMBUSTION TO IMPROVE ENERGY EFFICIENCY IN STEEL MILLS

DILUTED OXYGEN COMBUSTION TO IMPROVE ENERGY EFFICIENCY IN STEEL MILLS

Autoria

Zagury, Pedro; Nath, Ritesh Kumar; Tasca, Abílio; Marques, Izaias; Kobayashi, William

DOI

10.5151/2594-3626-23721

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Resumo

With increasing energy conservatism and pending CO2 legislation, steelmakers are striving towards fuel savings, energy efficiency improvements and the use of alternate fuels. Oxy-fuel technologies offer an economically feasible solution to meet these objectives. Compared to air-fired combustion systems, oxy-fuel technology can deliver up to 80% reduction in flue gas volumes, up to 50% fuel savings, up to 90% reduction in NOx emissions and the ability to substitute fuels. The specific benefits for each case are a function of several variables that are discussed in the paper. In addition, the paper describes how Praxair's Dilute Oxygen Combustion (DOC) technology overcomes all the classical concerns of oxy-fuel systems to offer an ideal oxy-fuel solution.

 

With increasing energy conservatism and pending CO2 legislation, steelmakers are striving towards fuel savings, energy efficiency improvements and the use of alternate fuels. Oxy-fuel technologies offer an economically feasible solution to meet these objectives. Compared to air-fired combustion systems, oxy-fuel technology can deliver up to 80% reduction in flue gas volumes, up to 50% fuel savings, up to 90% reduction in NOx emissions and the ability to substitute fuels. The specific benefits for each case are a function of several variables that are discussed in the paper. In addition, the paper describes how Praxair's Dilute Oxygen Combustion (DOC) technology overcomes all the classical concerns of oxy-fuel systems to offer an ideal oxy-fuel solution.

Palavras-chave

Oxygen; Combustion; Energy; Steel.

Oxygen; Combustion; Energy; Steel.