In this study, research was carried out on absorber (in and exit) in the wet flue gas desulfurization (WFGD) system of a local thermal power plant. WFGD plays a vital role in terms of environment since it includes water, chloride ion, gypsum, and coal ash. In the progress of WFGD in power plants, absorber has the key role of SO2 removal. This study focuses on modeling of the absorber in the WFGD system. In the context of this study, sample from absorber in limestone slurry was analyzed based on particle size distribution (PSD) and elemental composition, and a model was proposed to predict SO2 removal rate. The model proposed employs basically the parameters previously proposed by some researchers, and in addition, the PSD, i.e., size parameters like D32 and D43. The model proposed is in good agreement with the results obtained.
In this study, Zonguldak, a Turkish city popular with coal mining, was taken into consideration. Coal was the main source of energy for domestic heating in Zonguldak and tonnes of ash were dumped to environment. The ash samples were containing carbon and this carbon was aimed to recycle from these waste. In the order of this recycling, firstly classification of collected ash samples in terms of size groups was carried out. For each size groups sink and float analysis was carried out. Sink and float analysis was carried out with densities (1.30, 1.45, 1.60, 1.90 g/cm3) for a total of 5 size groups of ash (+18.00mm, -18.00+10.00mm, -10.00+6.00mm, - 6.00+2.36mm, -2.36+0.50mm) and each floated product was analysed in terms of final ash percentage. Size group -18+10 mm was floated at 1.30 g/cm3 and it was observed that this group of coal ash has the highest percentage (%58.84) carbon.
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