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A comprehensive model for predicting the sulfur retention performance in circulating fluidized bed combustors was developed which involves the different residence times, the wide particle size distribution and the different forms of sulfur in the coal. In addition, the reductive decomposition of CaSO 4 is highlighted. The simulation results from the model show that the sulfur contents, the bed temperature, the sorbent particle size distribution and the sorbent activity or the maximum conversion rate can significantly influence the sulfur retention performance in circulating fluidized bed (CFB) combustors.
A comprehensive model for predicting the sulfur retention performance in circulating fluidized bed combustors was developed which involves the different residence times, the wide particle size distribution and the different forms of sulfur in the coal. In addition, the reductive decomposition of CaSO 4 is highlighted. The simulation results from the model show that the sulfur contents, the bed temperature, the sorbent particle size distribution and the sorbent activity or the maximum conversion rate can significantly influence the sulfur retention performance in circulating fluidized bed (CFB) combustors.