Abstract
This paper refers to an experiment of SO2 absorption to the three different sorbents: calcium-oxide (CaO), calcium-carbonate (CaCO3) and dolomite (CaMg(CO3)2). In the reactor under the condition of oxidation atmosphere with the mass of sorbent (sample) of 100 g with fractional composition of 500-700µm, the gas temperature varied from 200°C and 400°C. The examinations indicated that the highest degree of sorbent utilization of 14 % was determined for dolomite (CaMg(CO3)2) and the binding degree of SO2 from 65-80% and the lowest for calcium oxide of 4% and the binding degree of SO2 from 34-60% at the reaction temperature of 200°C. When the reaction temperature is 400°C the degree of sorbent utilization is a bit lower. The achieved results indicate the injection capability of powdered sorbents CaMg(CO3)2, CaCO3 and CaO in the areas of lower temperatures as it is the convective part of the boiler or furnace flue of the thermo power plant.
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