Experience with CO2 capture from coal flue gas in pilot-scale

Modeling post-combustion CO2 capture with amine solvents

“…The lowest regeneration energy is observed at a flow rate value of 12.4m³/h in the rate-based model and of 12.8m³/h in the equilibrium model. The presence of a minimum in the regeneration energy requirement in function of the solvent flow rate has been observed and explained in previous experimental studies (Knudsen et al, [4]). From Figures 1 and 2, it can be observed that the minimum regeneration requirement is systematically lower in the equilibrium model.…”

“…In Table 1, parameters for the description of mass transfer phenomena have been chosen based on the literature (Abu Zahra et al, [3]; Zhang et al, [5]). Packing data are from the Esbjerg pilot plant (Knudsen et al, [4]). As for the equilibrium model, the number of column stages is a compromise between calculation complexity and model precision.…”