Characteristics of cross-flow rotating packed beds

Chia Chang Lin; Bor Chi Chen

doi:10.1016/j.jiec.2008.01.004

Characteristics of cross-flow rotating packed beds

Chia Chang Lin^*, Bor Chi Chen

^*Corresponding author for this work

Department of Chemical and Materials Engineering

Chang Gung University

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

57 Scopus citations

Abstract

This work examined pressure drop and mass transfer of the cross-flow rotating packed bed (RPB) using absorption of carbon dioxide (CO₂) from gas. As to pressure drop, the gas flow rate was observed to be a more important factor than the rotor speed and the liquid flow rate due to less liquid holdup in the cross-flow RPB. The overall volumetric gas-phase mass transfer coefficients (K_Ga) were determined as a function of the rotor speed, the gas flow rate and the liquid flow rate. The dependences of K_Ga on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the liquid phase for CO₂ absorption was higher than that in the gas phase in the cross-flow RPB. Moreover, the obtained results demonstrated that the K_Ga values of the cross-flow RPB were comparable to those of the countercurrent-flow RPB, suggesting a great potential of the cross-flow RPB applied to the removal of CO₂ from gaseous streams.

Original language	English
Pages (from-to)	322-327
Number of pages	6
Journal	Journal of Industrial and Engineering Chemistry
Volume	14
Issue number	3
DOIs	https://doi.org/10.1016/j.jiec.2008.01.004
State	Published - 05 2008

Keywords

Absorption
Carbon dioxide
Cross-flow
Mass transfer
Pressure drop
Rotating packed bed

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10.1016/j.jiec.2008.01.004

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title = "Characteristics of cross-flow rotating packed beds",

abstract = "This work examined pressure drop and mass transfer of the cross-flow rotating packed bed (RPB) using absorption of carbon dioxide (CO2) from gas. As to pressure drop, the gas flow rate was observed to be a more important factor than the rotor speed and the liquid flow rate due to less liquid holdup in the cross-flow RPB. The overall volumetric gas-phase mass transfer coefficients (KGa) were determined as a function of the rotor speed, the gas flow rate and the liquid flow rate. The dependences of KGa on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the liquid phase for CO2 absorption was higher than that in the gas phase in the cross-flow RPB. Moreover, the obtained results demonstrated that the KGa values of the cross-flow RPB were comparable to those of the countercurrent-flow RPB, suggesting a great potential of the cross-flow RPB applied to the removal of CO2 from gaseous streams.",

keywords = "Absorption, Carbon dioxide, Cross-flow, Mass transfer, Pressure drop, Rotating packed bed",

author = "Lin, {Chia Chang} and Chen, {Bor Chi}",

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T1 - Characteristics of cross-flow rotating packed beds

AU - Lin, Chia Chang

AU - Chen, Bor Chi

PY - 2008/5

Y1 - 2008/5

N2 - This work examined pressure drop and mass transfer of the cross-flow rotating packed bed (RPB) using absorption of carbon dioxide (CO2) from gas. As to pressure drop, the gas flow rate was observed to be a more important factor than the rotor speed and the liquid flow rate due to less liquid holdup in the cross-flow RPB. The overall volumetric gas-phase mass transfer coefficients (KGa) were determined as a function of the rotor speed, the gas flow rate and the liquid flow rate. The dependences of KGa on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the liquid phase for CO2 absorption was higher than that in the gas phase in the cross-flow RPB. Moreover, the obtained results demonstrated that the KGa values of the cross-flow RPB were comparable to those of the countercurrent-flow RPB, suggesting a great potential of the cross-flow RPB applied to the removal of CO2 from gaseous streams.

AB - This work examined pressure drop and mass transfer of the cross-flow rotating packed bed (RPB) using absorption of carbon dioxide (CO2) from gas. As to pressure drop, the gas flow rate was observed to be a more important factor than the rotor speed and the liquid flow rate due to less liquid holdup in the cross-flow RPB. The overall volumetric gas-phase mass transfer coefficients (KGa) were determined as a function of the rotor speed, the gas flow rate and the liquid flow rate. The dependences of KGa on the gas flow rate and the liquid flow rate indicated that the resistance to mass transfer in the liquid phase for CO2 absorption was higher than that in the gas phase in the cross-flow RPB. Moreover, the obtained results demonstrated that the KGa values of the cross-flow RPB were comparable to those of the countercurrent-flow RPB, suggesting a great potential of the cross-flow RPB applied to the removal of CO2 from gaseous streams.

KW - Absorption

KW - Carbon dioxide

KW - Cross-flow

KW - Mass transfer

KW - Pressure drop

KW - Rotating packed bed

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DO - 10.1016/j.jiec.2008.01.004

M3 - 文章

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SN - 1226-086X

VL - 14

SP - 322

EP - 327

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

IS - 3

ER -

Characteristics of cross-flow rotating packed beds

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Keywords

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