Wasserstoff als Reduktionsmittel für die Eisen- und Rohstahlerzeugung – Ist-Situation, Potentiale und Herausforderungen

Bäck, Eduard; Schenk, Johannes; Badr, Karim; Sormann, Axel; Plaul, Jan Friedemann

doi:10.1007/s00501-015-0346-5

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…For this reason, groundbreaking new technologies that apply the principle of direct carbon avoidance are urgently needed. The development of the HPSR process has reached a critical point where the basic principle has already proven itself [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. Still, the scale-up to the final industrial plant has only just begun.…”

Section: Introductionmentioning

confidence: 99%

A New Methodological Approach to the Characterization of Optimal Charging Rates at the Hydrogen Plasma Smelting Reduction Process Part 1: Method

et al. 2022

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The development of a carbon lean steel production process following the concept of direct carbon avoidance is one of the most challenging tasks the iron and steel industry must tackle in just a few decades. The necessary drastic reduction of 80% of the process’s inherent emissions by 2050 is only possible if a new process concept that uses hydrogen as the primary reductant is developed. The Hydrogen Plasma Smelting Reduction (HPSR) of ultra-fine iron ores is one of those promising concepts. The principle was already proven at a lab scale. The erection of a bench-scale facility followed this, and further scaled-ups are already planned for the upcoming years. For this scale-up, a better understanding of the fundamentals of the process is needed. In particular, knowledge of the kinetics of the process is essential for future economically feasible operations. This investigation shows the principles for evaluating and comparing the process kinetics under varying test setups by defining a representative kinetic parameter. Aside from the fundamentals for this definition, the conducted trials for the first evaluation are shown and explained. Several differences in the reduction behavior of the material at varying parameters of the process have already be shown. However, this investigation focuses on the description and definition of the method. An overall series of trials for detailed investigations will be conducted as a follow-up.

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Section: Introductionmentioning

confidence: 99%

A New Methodological Approach to the Characterization of Optimal Charging Rates at the Hydrogen Plasma Smelting Reduction Process Part 1: Method

et al. 2022

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“…To solve this problem, the smelting reduction of iron oxides using hydrogen plasma smelting reduction (HPSR) could be an alternative production route. HPSR is a one-step steel production process that uses the very high reduction potential of mainly excited but also ionized hydrogen to reduce iron ore with a minimum of CO 2 emissions [5]. The process has been studied at Montanuniversitaet Leoben in Austria since 1992 [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Stability Fields of Arc Plasma in the HPSR Process

Zarl

Farkas

Schenk

2020

Metals

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One of the major challenges for Europe’s future steel production will be minimizing the inherent process emissions in the production of crude steel based on iron ores. In this case, mainly the reduction of CO2 emissions is a focus. One promising process to overcome these problems is the hydrogen plasma smelting reduction (HPSR) process. This process has been studied for several years already at the Chair of Ferrous Metallurgy at Montanuniversitaet Leoben. The work presented focused on the stability of plasma arcs in the DC transferred arc system of the HPSR process. The stable operating plasma arc is of utmost importance for the future development of the process. The major objective is the definition of the most favorable conditions for this kind of arc. Therefore, tests were conducted to define fields of a stable operating plasma arc for multiple gas compositions and process variables. For several gas compositions of argon, nitrogen, argon/nitrogen, argon/hydrogen and nitrogen/hydrogen, fields of stability were measured and defined. Besides, the major influencing parameters and trends for the fields of stability were evaluated and are shown in this work.

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Wasserstoff als Reduktionsmittel für die Eisen- und Rohstahlerzeugung – Ist-Situation, Potentiale und Herausforderungen

Cited by 2 publications

References 6 publications

A New Methodological Approach to the Characterization of Optimal Charging Rates at the Hydrogen Plasma Smelting Reduction Process Part 1: Method

A New Methodological Approach to the Characterization of Optimal Charging Rates at the Hydrogen Plasma Smelting Reduction Process Part 1: Method

A Study on the Stability Fields of Arc Plasma in the HPSR Process

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