Steelmaking in Electric Arc Furnace Though De Laval had patented an electric furnace for the melting and the refining iron in 1892 and Heroult had demonstrated electric arc melting of ferro-alloys between 1888 and 1892, the first industrial electric arc furnace (EAF) steelmaking process only came into operation in 1900. Development was rapid and there …
Read MoreGreen Steelmaking The average annual temperature of the earth is rising since the industrial revolution. This is mainly due to the burning of the fossil fuels which increase the emissions of carbon di-oxide (CO2) in the atmosphere. Prior to the industrial revolution, 280 ppm (0.028 %) of the atmospheric air consisted of CO2, and this …
Read MoreCarbon Neutral Steelmaking Iron and steel production industry is the single largest sector in terms of total global fossil and industrial emissions, making up around 7 % to 9 % of greenhouse gas (GHG) emissions. At the same time, steel is the primary material component for modern industrial societies. Further consumption of steel is going …
Read MoreCoal Gasification based Production of Direct Reduced Iron Direct reduced iron (DRI) is one of the major input materials for the production of steel through electric furnace route. DRI is produced predominantly by gas based processes around the world in vertical shaft furnaces utilizing natural gas. DRI is also used in some countries by rotary …
Read MoreTheoretical Aspects of Direct Reduction Process In the direct reduction process of iron ore, the solid metallic iron (Fe) is obtained directly from solid iron ore without subjecting the ore or the metal to fusion. Direct reduction can be defined as reduction in the solid state at oxygen (O2) potentials which allow reduction of iron …
Read MoreProduction of Steel in Induction Furnace Medium frequency coreless induction furnace is generally used for the production of steel in the steel melting shops of low capacity. The induction furnace is equipped with a converter for producing the necessary medium frequency from the 50 Hz frequency of the power supply. For this, a direct voltage …
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