Absorption of NO
x
in packed column (I) |
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Authors: | Hoo Kun Lee Kwan Sik Chun Hyun Soo Park Jong Hyun Cho |
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Affiliation: | (1) Korea Advanced Energy Research Institute, Korea;(2) Dept. of Chemical Engineering, Chonnam National University, Korea |
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Abstract: | 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
.The selection of 11×10−4kg·mol/atm·m2·sec for
resonable for this model. |
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Keywords: | |
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