Characterization of calcium carbonates used in wet flue gas desulphurization processes

Simion Dragan 1  and Alexandru Ozunu 2
  • 1 Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 400028, Cluj-Napoca, Romania
  • 2 Faculty of Environmental Sciences and Engineering, Babeş-Bolyai University, 400294, Cluj-Napoca, Romania


This paper presents an experimental characterization of two sources of calcium carbonate, limestone and calcium carbonate precipitate (CCP) used in wet flue gas desulphurization processes. Characterization of the two carbonate sources was carried out by chemical analysis, IR spectra, thermal behavior, particle size distribution for CCP, BET surface area and absorption capacity of SO2 in calcium carbonate suspensions. The absorption temperature, suspension concentration and carbonate grain size were found to be the most influential parameters in the absorption capacity measurements.

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