Reactor Selection for Prereduction in a Novel Hybrid Hydrogen Plasma Smelting Reduction Process

The hydrogen plasma smelting reduction process (HPSR) has the potential to drastically reduce greenhouse gas emissions during ironmaking by using hydrogen as a reducing agent. The maximum hydrogen utilization is however limited to around 40 vol. % thermodynamically. This can only be overcome by incorporating a prereduction step, for example with the HPSR offgas. After an in-depth analysis of the optimal operating conditions, possible reactor types are assessed. The effective use of hot, dusty, hydrogen-containing reducing gas with wide grain size ranges presents several challenges. A suitable reactor concept is then proposed to be implemented at an existing HPSR demonstration plant.

Authors:

Bernhard Adami | K1-MET GmbH
 

Dr. Johannes Schenk | Montanuniversität Leoben
 

Session Chairs:

Achinta Haldar | Stelco Inc.
 

Brian Jamieson | Charm Industrial