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Related Experiment Video

Updated: May 25, 2026

Preparation of Free-Surface Hyperbolic Water Vortices

Preparation of Free-Surface Hyperbolic Water Vortices

Published on: July 28, 2023

Binary VOCs absorption in a rotating packed bed with blade packings.

Ling-Jung Hsu¹, Chia-Chang Lin

¹Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan, Taiwan, ROC.

Journal of Environmental Management

|February 3, 2012

Summary

This study on rotating packed beds found that gas flow rate significantly impacts volatile organic compound (VOC) removal efficiency, suggesting gas-phase mass transfer is key for methanol and 1-butanol absorption.

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Area of Science:

Chemical Engineering
Environmental Engineering
Mass Transfer Operations

Background:

Rotating packed beds (RPBs) offer enhanced mass transfer efficiency for gas absorption processes.
Volatile organic compounds (VOCs) removal from industrial emissions is crucial for environmental protection.
Understanding mass transfer coefficients is vital for designing efficient absorption systems.

Purpose of the Study:

To investigate the mass transfer characteristics of methanol and 1-butanol removal from binary mixtures using water in a rotating packed bed with blade packings.
To determine the influence of operating parameters on the overall volumetric gas-phase mass transfer coefficient (K(G)a).

Main Methods:

Experimental investigation of binary VOC absorption in a lab-scale rotating packed bed.
Systematic variation of inlet concentrations of methanol and 1-butanol, rotational speed, gas flow rate, and liquid flow rate.
Measurement and analysis of the overall volumetric gas-phase mass transfer coefficient (K(G)a).

Main Results:

Inlet concentrations of methanol and 1-butanol showed a negligible effect on K(G)a.
K(G)a values for both methanol and 1-butanol increased with higher rotational speed, gas flow rate, and liquid flow rate.
The impact of gas flow rate on K(G)a was more pronounced than that of liquid flow rate.

Conclusions:

Gas-phase mass transfer resistance plays a significant role in the absorption of binary VOCs within rotating packed beds.
Optimizing gas flow rate is critical for enhancing the efficiency of VOC removal in such systems.
Blade packings in RPBs demonstrate effectiveness for binary VOC absorption, with performance sensitive to operational parameters.