A film model with surface resistance for absorption removal of ga seous polllutant accompanied by an irreversible chemical reaction with generalized kinetics
碩士 === 國立臺灣大學 === 環境工程研究所 === 82 === A simple film theory yielded a model presented for the analysis of isothermal gas absorption with a chemical reaction taking into account the effect of interfacial resistance. The analysis could be neces...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
1994
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| Online Access: | http://ndltd.ncl.edu.tw/handle/68724997395939158532 |
| Summary: | 碩士 === 國立臺灣大學 === 環境工程研究所 === 82 === A simple film theory yielded a model presented for the analysis
of isothermal gas absorption with a chemical reaction taking
into account the effect of interfacial resistance. The analysis
could be necessary for gaseous pollutant removal with
impurities conten ting the gas-liquid interface in wet
scrubbing systems. The film theory avoids time dependence and
thus in much easier to apply than the penetration theory. The
results obtained by the differ ent theories to influence of
absorption with chemical reaction are in good agreement.The
study of were divided into two major parts. The first part
investigative influence of chemical reac tion and reaction
order of gaseous pollutants with absorbent with out interfacial
resistance at surface. The other was investigated the influence
of absorption rate with interfacial resistance at surface.
Simulative parameter "kL/ks" (the ratio of liquid and interface
mass transfer coefficient) in increase bring about incr ease
the influence of absorption rate. The results of simulation
were expressed in diagrams of .Sqroot. (MAB) agaist the En or
Rfrs and accorded with other model accompa nied by a first-
order irreversible reaction of isothermal absorpt ion. The
results indicated the order of reaction had an influence on
enhancement which could be equal to a constant when .Sqroot.(M
AB)is approached infinite. Interfacial resistance made great
infl uence to absorption rate and the different reaction order
caught different influence degree. In order to improve
absorption rate, it is necessary for a wet scrubbing system to
operate in a proper condition.
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