CANCELLED: Accelerating Rate Limited Kinetics in Hydrogen-Direct Iron Reduction: Investigating Microstructure Evolution With Percolation Theory

When H2 is used in the reduced-C direct iron reduction (DIR) process, multi-scale phenomena like agglomeration of ore particles hinder its scalability and halt continuous reactor operation. Previous studies show that during the final phase transition (wustite→ iron), mass transport, nucleation and mechanical changes in sample compete to diminish reduction rate. The percolation theory was applied to model how connectivity of pore networks in ores drives an acceleration in kinetics of the rate-limiting reaction step. Insights into the microstructure evolution in pure iron oxide samples will enable design decisions about engineered pellets to explore scalable efficient HDIR chemistry pathways.

Subhechchha Paul | Stanford University
 

Yan Ma | Max-Planck-Institut für Eisenforschung GmbH
 

Leora Dresselhaus-marais | Stanford University
 

Dierk Raabe | Max-Planck-Institut für Eisenforschung GmbH