Enhancement of the energy efficiency of electric steelmaking processes by means of natural gas conversion with the exhaust gases of an arc furnace

1Gubinskii M.V., Dr. Sci. (Eng.), Professor, 2Timoshenko S.N., Cand. Sci. (Eng.), Senior Researcher, 3Shraiber O.A., Dr. Sci. (Eng.), Professor, 3Antonets I.V.
1The National Metallurgical Academy of Ukraine, Gagarina avenue, 4, Dnipro, 49600, Ukraine
2Donetsk National Technical University, 2, Shybankova square, Pokrovs’k, Donetsk region, 85300, Ukraine
3Institute of General Energy of the National Academy of Sciences of Ukraine, 172 Antonovycha str., Kyiv, 03150, Ukraine
Language: Russian
Source: Problemy zahal`noi enerhetyky - The Problems of General Energy, 2017, 1(48):60-66
https://doi.org/10.15407/pge2017.01.060
Section: Enhancement of the efficiency of producing and using energy resources
UDC: 669.187:536.7
Received: 16.02.2017
Published: 15.03.2017
Abstract: We have developed a new scheme of the electric steelmaking process with thermochemical recuperation, i.e., natural gas conversion with the exhaust gases of an arc furnace for scrap preheating. Thermodynamic calculations show that this scheme provides an increase in the thermal efficiency of the furnace by 5–6%, fuel economy by 21%, and a decrease in CO2 emission to the atmosphere by 9.8%.
Keywords: electric arc furnace, energy efficiency, natural gas, conversion, thermochemical recuperation.
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