H2-Change: Refractories Under Attack of Challenging Atmospheres During Transformation Process

The sustainable change is a need for the future aligned with industrial transformation. For the steel industry, the direct reduction process is a well-known alternative. In this paper, common and advanced lining materials for gas-driven direct reduced iron (DRI) shaft furnaces are discussed, especially by using different gases such as hydrogen, methane, carbon monoxide and water vapor and mixtures of these gases as an attacking agent. Results were obtained under different pressures up to approximately 72,000 psi and temperatures up to 2,550°F. The paper will also discuss the usual wear of lining materials for DRI shaft furnaces.

Jens Sperber | Steuler-KCH GmbH
 

Franz-Josef Duennes | Steuler-KCH GmbH