The Direct Reduction of Iron Ore with Hydrogen

The steel industry represents about 7% of the world’s anthropogenic CO2 emissions due to high use fossil fuels. CO2-lean direct reduction iron ore with hydrogen is considered offer a potential reduce emissions, and this Fe2O3 powder investigated in research. H2 reaction kinetics fluidization characteristics fine cohesive particles were examined vibrated fluidized bed reactor. A smooth bubbling was achieved. An increase external force vibration slightly increased pressure drop. minimum velocity nearly independent operating temperature. yield H2-driven found exceed 90%, maximum 98% under ~47 Hz an amplitude 0.6 mm, temperatures close 500 °C. Towards future reduction, cheap “green” sources need be developed. can formed through various techniques catalytic decomposition NH3 (and CH4), methanol ethanol offering important towards production cost, environmental emission reductions.