Performance study of a lab scale packed bed Chemical Looping Combustion reactor: Part a) Reduction cycle
Keywords:Chemical looping combustion (CLC), packed bed reactor, transient analysis, ilmenite
In the current work, the theoretical performance of the lab scale CLC operated packed bed reactor has been investigated for the combustion of syngas from coal gasification plant with the ilmenite as oxygen carrier material. The current work has focused the reduction cycle, where as the feed gas was passed through the bed packed with the ilmenite particles. Flue gas from the reduction cycle contains CO2 and H2O which are separated in coolers. The model was scripted in Pascal codes and simulation was performed in Borland Delphi to study the effect of feed composition, feed flow rate, bed porosity, operating pressure and active weight content during the reduction cycle in part 1 of the paper. It was concluded from the simulated results that temperature rise/drop depends upon the active content (hematite) of the catalyst while operating conditions and geometrical parameters of the column influence the cycle time of the reduction cycle.
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