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J Environ Manage. 2012 May 15;98:175-82. doi: 10.1016/j.jenvman.2011.11.011. Epub 2012 Jan 31.

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

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


This investigation addressed the mass transfer of rotating packed beds with blade packings in removing methanol and 1-butanol from binary mixtures by absorption using water as the absorbent. The dependences of the overall volumetric gas-phase mass transfer coefficient (K(G)a) on the inlet methanol concentration, the inlet 1-butanol concentration, the rotational speed, the gas flow rate, and the liquid flow rate, were explored. The results demonstrated that the inlet methanol and 1-butanol concentrations had a negligible effect on the K(G)a values of methanol and 1-butanol. The K(G)a values of methanol and 1-butanol increased with the rotational speed, the gas flow rate, and the liquid flow rate. The dependence of K(G)a on the gas flow rate was higher than that on the liquid flow rate, revealing that the mass transfer in binary VOCs absorption may be controlled considerably by the mass transfer in gas phase.

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