TY - JOUR
T1 - Simultaneous absorption of SO2 and NO from flue gas with KMnO4/NaOH solutions
AU - Chu, H.
AU - Chien, T. W.
AU - Li, S. Y.
N1 - Funding Information:
This study was funded in part by National Science Council, Republic of China (NSC 85-2211-E-006-016 and NSC 85-2732-E-006-003).
PY - 2001/7/25
Y1 - 2001/7/25
N2 - The wet scrubbing combined SOx/NOx removal system is an advanced air pollution control device. This study attempts to understand the absorption kinetics in the system. The absorption of diluted SO2 and simultaneous absorption of diluted SO2 and NO, as occurs in flue gases, in a stirred tank reactor with KMnO4/NaOH solutions were carried out at 50°C. The liquid-side and gas-side mass transfer coefficients of the system were determined. The results indicate that the absorption of SO2 is close to completely gas-film controlled where the NaOH concentration is greater than 0.1 M or the KMnO4 concentration is greater than 0.05 M. The increasing gas flow rate has a positive effect on the absorption rate of SO2. The existence of O2 has no significant effect on the absorption rate of SO2. Adding SO2 would decrease the absorption rate of NO; however, the addition of NO has no effect on the absorption rate of SO2.
AB - The wet scrubbing combined SOx/NOx removal system is an advanced air pollution control device. This study attempts to understand the absorption kinetics in the system. The absorption of diluted SO2 and simultaneous absorption of diluted SO2 and NO, as occurs in flue gases, in a stirred tank reactor with KMnO4/NaOH solutions were carried out at 50°C. The liquid-side and gas-side mass transfer coefficients of the system were determined. The results indicate that the absorption of SO2 is close to completely gas-film controlled where the NaOH concentration is greater than 0.1 M or the KMnO4 concentration is greater than 0.05 M. The increasing gas flow rate has a positive effect on the absorption rate of SO2. The existence of O2 has no significant effect on the absorption rate of SO2. Adding SO2 would decrease the absorption rate of NO; however, the addition of NO has no effect on the absorption rate of SO2.
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U2 - 10.1016/S0048-9697(00)00860-3
DO - 10.1016/S0048-9697(00)00860-3
M3 - Article
C2 - 11482398
AN - SCOPUS:0035948522
SN - 0048-9697
VL - 275
SP - 127
EP - 135
JO - Science of the Total Environment
JF - Science of the Total Environment
IS - 1-3
ER -