Document Detail


Simultaneous absorption of SO2 and NO from flue gas with KMnO4/NaOH solutions.
MedLine Citation:
PMID:  11482398     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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 degrees 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.
Authors:
H Chu; T W Chien; S Y Li
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Science of the total environment     Volume:  275     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-08-02     Completed Date:  2001-08-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  127-35     Citation Subset:  IM    
Affiliation:
Department of Environmental Engineering, National Cheng Kung University, Tainan, Taiwan. chuhsin@mail.ncku.edu.tw
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MeSH Terms
Descriptor/Qualifier:
Absorption
Acid Rain / analysis
Air Pollutants / analysis*
Algorithms
Environmental Monitoring / instrumentation*,  methods
Kinetics
Nitric Oxide / analysis*
Potassium Permanganate / chemistry
Sodium Hydroxide / chemistry
Sulfur Dioxide / analysis*
Chemical
Reg. No./Substance:
0/Acid Rain; 0/Air Pollutants; 10102-43-9/Nitric Oxide; 1310-73-2/Sodium Hydroxide; 7446-09-5/Sulfur Dioxide; 7722-64-7/Potassium Permanganate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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