화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.16, No.1, 140-146, January, 2010
DOI10.1016/j.jiec.2010.01.005  Export Citation
Removal of ozone from air by absorption in a rotating packed bed
Chia-Chang Lin1, 2, †, Cheng-Yu Chao1, and Mei-Yun Liu1
  • 1Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan, Taiwan, ROC
  • 2Pollution Prevention Group, Green Technology Research Center, Chang Gung University, Taoyuan, Taiwan, ROC
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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(G)a) were determined as functions of pH of H2O2 solution, O3 concentration, H2O2 concentration, RPB speed, gas flowrate, liquid flow rate, and RPB type. The K(G)a values were highly dependent on the pH of H2O2 solution. Also, the K(G)a values increased with O3 concentration and H2O2 concentration. As expected, the RPB speed positively affected the K(G)a values for all RPBs. Furthermore, the obtained results indicated that the K(G)a values increased as the inner radius of the bed was increased and the outer radius of the bed was decreased. Moreover, the K(G)a values increased with an increasing liquid flow rate and an increasing gas flow rate for all RPBs. The dependences of K(G)a 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:Rotating packing bed;Ozone;Absorption;Mass transfer;High gravity
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