Syngas Production Through Multi-Cycle Chemical Looping of Chromite Mines Waste: A Sustainable Approach to Mitigate CO2 Emissions

The study's focus is on curbing CO2 emissions from steel production by employing chemical looping with laterite ore as an oxygen carrier to reform methane. Experimental tests involving redox cycles, XRD, SEM, and gas analysis were conducted, showing continuous H2 and CO gas production and the formation of stable chromite and reduced iron oxide phases. The oxygen carrier demonstrated good stability, yielding 203.9 ml/g of OC after 20 cycles. Thermodynamic-based simulations supported these findings. The syngas generated could be used to pre-reduce iron-bearing ore in a blast furnace, potentially significantly reducing CO2 emissions and coke usage in steelmaking.

Mr Swagat Das | Indian Institute of Technology - Kharagpur
 

Mr Franklin Eden | Edenwenz Associates
 

Dr Manas Paliwal | Indian Institute of Technology - Kharagpur