✦ LIBER ✦

20 Absorption of nitrogen oxides into water

✍ Scribed by H. Komiyama; H. Inoue

Publisher: Elsevier Science
Year: 1980
Tongue: English
Weight: 533 KB
Volume: 35
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(80)80082-0

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✦ Synopsis

Absorption of NO2 and NO-NO2 mxture into weak alkaline solutzons are studled. Empha-~1s 1s put on the concentratzon level ranglag from 5000 down to 5 ppm-The absorption rates and the stolchlometrlc relatzons are deterrmned by simultaneously measuring the gas and llqud phase composltlons. Flat-llquld-level absorber and bubbling type absorber are employed for testing the effects of mass transfer coefflclent. The absorptlon rates of NO2 depend on the concentration of NO2 In second order at the concentratlons above around 800 ppm. At the lower concentrations, the rate dependency changes to 11/2 order In NO2 and, In the case of rather large mass transfer coefflclents, It further changes to l'st

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