Removal of ozone from air by absorption in a rotating packed bed

Chia Chang Lin; Cheng Yu Chao; Mei Yun Liu

doi:10.1016/j.jiec.2010.01.005

Removal of ozone from air by absorption in a rotating packed bed

Chia Chang Lin^*, Cheng Yu Chao, Mei Yun Liu

^*Corresponding author for this work

Department of Chemical and Materials Engineering

Chang Gung University

Research output: Contribution to journal › Journal Article › peer-review

34 Scopus citations

Abstract

This work investigated the feasibility of ozone (O₃) absorption by H₂O₂ solution in a rotating packed bed (RPB). The overall volumetric gas-phase mass transfer coefficients (K_Ga) were determined as functions of pH of H₂O₂ solution, O₃ concentration, H₂O₂ concentration, RPB speed, gas flow rate, liquid flow rate, and RPB type. The K_Ga values were highly dependent on the pH of H₂O₂ solution. Also, the K_Ga values increased with O₃ concentration and H₂O₂ 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 O₃ absorption was higher than that in the liquid phase in the RPB.

Original language	English
Pages (from-to)	140-146
Number of pages	7
Journal	Journal of Industrial and Engineering Chemistry
Volume	16
Issue number	1
DOIs	https://doi.org/10.1016/j.jiec.2010.01.005
State	Published - 25 01 2010

Keywords

Absorption
High gravity
Mass transfer
Ozone
Rotating packing bed

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10.1016/j.jiec.2010.01.005

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@article{643e383ba9854cd699f74313aa7d5e48,

title = "Removal of ozone from air by absorption in a rotating packed bed",

abstract = "This work investigated the feasibility of ozone (O3) absorption by H2O2 solution in a rotating packed bed (RPB). The overall volumetric gas-phase mass transfer coefficients (KGa) were determined as functions of pH of H2O2 solution, O3 concentration, H2O2 concentration, RPB speed, gas flow rate, liquid flow rate, and RPB type. The KGa values were highly dependent on the pH of H2O2 solution. Also, the KGa values increased with O3 concentration and H2O2 concentration. As expected, the RPB speed positively affected the KGa values for all RPBs. Furthermore, the obtained results indicated that the KGa values increased as the inner radius of the bed was increased and the outer radius of the bed was decreased. Moreover, the KGa values increased with an increasing liquid flow rate and an increasing gas flow rate for all RPBs. The dependences of KGa on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the gas-phase for O3 absorption was higher than that in the liquid phase in the RPB.",

keywords = "Absorption, High gravity, Mass transfer, Ozone, Rotating packing bed",

author = "Lin, {Chia Chang} and Chao, {Cheng Yu} and Liu, {Mei Yun}",

year = "2010",

month = jan,

day = "25",

doi = "10.1016/j.jiec.2010.01.005",

language = "英语",

volume = "16",

pages = "140--146",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

publisher = "Korean Society of Industrial Engineering Chemistry",

number = "1",

}

TY - JOUR

T1 - Removal of ozone from air by absorption in a rotating packed bed

AU - Lin, Chia Chang

AU - Chao, Cheng Yu

AU - Liu, Mei Yun

PY - 2010/1/25

Y1 - 2010/1/25

N2 - This work investigated the feasibility of ozone (O3) absorption by H2O2 solution in a rotating packed bed (RPB). The overall volumetric gas-phase mass transfer coefficients (KGa) were determined as functions of pH of H2O2 solution, O3 concentration, H2O2 concentration, RPB speed, gas flow rate, liquid flow rate, and RPB type. The KGa values were highly dependent on the pH of H2O2 solution. Also, the KGa values increased with O3 concentration and H2O2 concentration. As expected, the RPB speed positively affected the KGa values for all RPBs. Furthermore, the obtained results indicated that the KGa values increased as the inner radius of the bed was increased and the outer radius of the bed was decreased. Moreover, the KGa values increased with an increasing liquid flow rate and an increasing gas flow rate for all RPBs. The dependences of KGa on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the gas-phase for O3 absorption was higher than that in the liquid phase in the RPB.

AB - This work investigated the feasibility of ozone (O3) absorption by H2O2 solution in a rotating packed bed (RPB). The overall volumetric gas-phase mass transfer coefficients (KGa) were determined as functions of pH of H2O2 solution, O3 concentration, H2O2 concentration, RPB speed, gas flow rate, liquid flow rate, and RPB type. The KGa values were highly dependent on the pH of H2O2 solution. Also, the KGa values increased with O3 concentration and H2O2 concentration. As expected, the RPB speed positively affected the KGa values for all RPBs. Furthermore, the obtained results indicated that the KGa values increased as the inner radius of the bed was increased and the outer radius of the bed was decreased. Moreover, the KGa values increased with an increasing liquid flow rate and an increasing gas flow rate for all RPBs. The dependences of KGa on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the gas-phase for O3 absorption was higher than that in the liquid phase in the RPB.

KW - Absorption

KW - High gravity

KW - Mass transfer

KW - Ozone

KW - Rotating packing bed

UR - http://www.scopus.com/inward/record.url?scp=77249103489&partnerID=8YFLogxK

U2 - 10.1016/j.jiec.2010.01.005

DO - 10.1016/j.jiec.2010.01.005

M3 - 文章

AN - SCOPUS:77249103489

SN - 1226-086X

VL - 16

SP - 140

EP - 146

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

IS - 1

ER -

Removal of ozone from air by absorption in a rotating packed bed

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Keywords

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