Notice of RetractionRate-based modelling of SO2 absorption into aqueous Na2SO3 in packed column

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

A rate-based model of a counter-current reactive absorption process has been developed for the absorption of SO₂ into Na₂SO₃ in a packed column. The model adopts the film theory, includes diffusion and reaction processes, and assumes that thermodynamic equilibrium among the reacting species exists in the bulk liquid. For the calculation of the absorption rate of SO₂ into Na₂SO₃ solution, it is important to take into account all reversible reactions simultaneously. The model was used to calculate concentration profiles in the liquid film, partial pressure, mass transfer rate, pH profiles, enhancement factor along the column. Model predictions were compared to experimental data and a good agreement was achieved. The study provided a basic study for theoretical analysis and engineering design of the process of SO₂ absorption in flue gas by sodium alkali solution and other wet FGD process.