MODELING OF A CARBONATION-CALCINATION LOOP TO CAPTURE CO2 FROM FLUE GASES

The papers outlines some problems concerning modeling of carbonation-calcination loop used to capture CO2 from flue gases. The modelling of loop consists of two large parts, the Kunni - Levenspiel model of reactor and the carbonation-calcination loop itself. For the Kunni- Levenspiel model the finding of regimes of fluidizing reactor is modeled, so all the inputs concerning the characterization of particles are defined and the computation of the dimensionless values for finding a position in the general flow regime is presented. For the carbonation-calcination loop only the mass balance is computed. Its result shows the important ratio - the mole flow of CaO cycling form the calciner to the carbonator to the mole flow of CO2 in flue gas at the inlet of carbonator. As the conclusion the results of model for this ratio is presented and the second inportant ratio the mole flow of fresh makeup limestone to the mole flow of CaO cycling form the calciner to the carbonator is taken to consideration.