The Korean Journal of Chemical Engineering 게재 논문 요약

A mathematical model for an absorption of nitrogen oxides into water in packed column was developed based on the mass-transfer coefficient in packed column and the chemical reaction accompanying NO_x absorption produces HNO₃ and HNO₂ in the liquid phase. The subsequent dissociation of HNO₂ in the liquid-phase results in the formation of HNO₃ and NO gas, and then this NO gas follows to be oxidized by O₂ in air. The important factors influenced on the absorption of NO_x are the oxidation state of NO gas and the partial pressure of nitrogen oxides in the gas. The efficiency of NO_x absorption increases with the increase of the partial pressure of NO_x. The most critical value for using the model is the constant of (√DK₃/H)_(N₂O₄). The selection of 11 x l0^(-4)kg·mol/ atm·㎡·sec for (√DK₃/H)_(N₂O₄) is resonable for this model.