This paper investigates the characteristics of the methane plasma reduction of iron ore in comparison to that of the hydrogen plasma reduction process. Although hydrogen plasma smelting reduction (HPSR) has potential advantages as a steelmaking alternative in terms of simplicity (less operation units) and less harmful detrimental environmental implications, its high cost has a negative influence on its usage. In this regard, natural gas (» 96 % methane) could be adopted in the field of plasma smelting reduction. A brief comparison between hydrogen and methane options has been carried out experimentally. Heat and mass balance models were conducted to explore the features of up-scaled processes with respect to consumption figures and CO 2 emissions. It was found that the methane plasma is a good alternative iron oxide smelting process.
Die Entwicklung der Wasserstoff-Schmelzreduktion ist schon seit mehr als drei Jahrzehnten ein Forschungsschwerpunkt am Lehrstuhl für Metallurgie. Im vorliegenden Artikel werden die Laboreinrichtungen und Versuche zur Wasserstoff-Schmelzreduktion beschrieben. Überlegungen zu einer alternativen Stahlerzeugungsroute auf Basis einer Wasserstoff-Plasma-Schmelzreduktion werden dargelegt und eine SWOT-Analyse durchgeführt.Survey about the Development of Hydrogen Smelting Reduction at the Chair of Metallurgy. Development of hydrogen smelting reduction is an object of research for more than three decades on the Chair of Metallurgy. This paper focuses on laboratory facilities and experiments for the investigation of hydrogen smelting reduction at the Chair of Metallurgy.-Considerations for an alternative steelmaking route based on hydrogen plasma smelting reduction are made and a SWOT analysis is presented.
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