Abstract
In this work, dry desulfurization of simulated flue gas was investigated in a batchwise operated laboratory-scale stainless steel fluidized-bed reactor (46 × 500 mm2) by using calcium-containing local Turkish limestone (Karaaǧaçlı/MUS) which was calcined at 900 °C with 5% H2O vapor. The sulfation reaction was carried out in a broad range of temperature (200 ≤ T(°C) ≤ 900) and SO2 feedstock concentration (1000 ≤ C(ppm SO2) ≤ 6000). The experimental sulfation conversion-time data were tested according to unreacted shrinking core model (SCM), changing the grain size model (GM) and random pore model (RPM). It was found that the random pore model with control of product layer (CaSO3/CaSO4) diffusion described the experimental data best.
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