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Received August 22, 2006
Accepted February 22, 2007
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Residence time distribution and dispersion of gas phase in a wet gas scrubbing system
School of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea 1Department Chemical and Biomolecular Engineering, KAIST, Daejeon 305-701, Korea
Korean Journal of Chemical Engineering, September 2007, 24(5), 892-896(5), 10.1007/s11814-007-0061-3
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Abstract
Residence time distribution (RTD) of exhaust gas in a wet scrubbing system was investigated for application to the removal of SOx, NOx or dust included in exhaust gas. The mixing of gas phase in the wet scrubbing system was also examined by considering the axial dispersion coefficient of gas phase. Effects of gas amount (velocity), liquid amount (velocity) and solid floating materials on the residence time distribution (RTD) and axial dispersion coefficient of exhaust gas were discussed. The addition of solid floating materials could change the RTD and thus dispersion of exhaust gas in the scrubbing system. The mean residence time and axial dispersion coefficient of exhaust gas were well correlated in terms of operating variables.
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Majumder SK, Kundu G, Mukherjee D, Chem. Eng. J., 112(1-3), 45 (2005)
Kantak MV, Hesketh RP, Kelkar BG, Chem. Eng. J., 59, 91 (1995)
Kawagoe M, Otake T, Robinson CW, J. Chem. Eng. Jpn., 22, 136 (1989)
Shetty SA, Kantak MV, Kelkar BG, AIChE J., 38, 1013 (1992)
Hyndman CL, Larachi F, Guy C, Chem. Eng. Sci., 52(1), 63 (1997)
Levenspiel O, Smith WK, Chem. Eng. Sci., 6, 227 (1957)
Cho YJ, Park HY, Kim SW, Kang Y, Kim SD, Ind. Eng. Chem. Res., 41(8), 2058 (2002)
Kim SW, Kim HT, Song PS, Kang Y, Kim SD, Can. J. Chem. Eng., 81(3-4), 621 (2003)
Son SM, Song PS, Lee CG, Kang SH, Kang Y, Kusakabe K, J. Chem. Eng. Jpn., 37, 990 (2004)
Kim SD, Kang Y, Stud. Surf. Sci. Catal., 159, 103 (2006)
Fan LS, Gas-liquid-solid fluidization engineering, Butterworth Publishers, Stoneham, MA, USA, 270 (1989)
Delnoij E, Kuipers JA, Vanswaaij WP, Chem. Eng. Sci., 52(21-22), 3623 (1997)
