Removal of ozone from air by absorption in a rotating packed bed
This work investigated the feasibility of ozone (O 3) absorption by H 2O 2 solution in a rotating packed bed (RPB). The overall volumetric gas-phase mass transfer coefficients ( K Ga) were determined as functions of pH of H 2O 2 solution, O 3 concentration, H 2O 2 concentration, RPB speed, gas flow...
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Published in | Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 16; no. 1; pp. 140 - 146 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.01.2010
한국공업화학회 |
Subjects | |
Online Access | Get full text |
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Summary: | This work investigated the feasibility of ozone (O
3) absorption by H
2O
2 solution in a rotating packed bed (RPB). The overall volumetric gas-phase mass transfer coefficients (
K
Ga) were determined as functions of pH of H
2O
2 solution, O
3 concentration, H
2O
2 concentration, RPB speed, gas flow rate, liquid flow rate, and RPB type. The
K
Ga values were highly dependent on the pH of H
2O
2 solution. Also, the
K
Ga values increased with O
3 concentration and H
2O
2 concentration. As expected, the RPB speed positively affected the
K
Ga values for all RPBs. Furthermore, the obtained results indicated that the
K
Ga values increased as the inner radius of the bed was increased and the outer radius of the bed was decreased. Moreover, the
K
Ga values increased with an increasing liquid flow rate and an increasing gas flow rate for all RPBs. The dependences of
K
Ga on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the gas-phase for O
3 absorption was higher than that in the liquid phase in the RPB. |
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Bibliography: | http://www.cheric.org/article/820052 G704-000711.2010.16.1.026 |
ISSN: | 1226-086X 1876-794X |
DOI: | 10.1016/j.jiec.2010.01.005 |