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Gas Absorption of Carbon Dioxide in a Hollow Fiber Contained Liquid Membrane Absorber
Korean Journal of Chemical Engineering, July 1997, 14(4), 285-291(7), 10.1007/BF02706825
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Abstract
Experiments on the absorption of CO2 into a hollow fiber contained liquid membrane absorber were performed. The feed gas was a mixture of CO2 and N2, absorbent liquid was 2-amino-2-methyl-1-propanol and the hollow fiber was a microporous hydrophobic polytetrafluoroethylene membrane. Outlet concentration of CO2 from the absorber decreased as absorbent concentration increased, gas flow rate increased and were held constant for speed of agitation, but had a maximum value in the rage of inlet concentration of CO2 from 5 to 40 mole %. The reaction rate constant obtained for CO2-amine system was 231 l/mol·s at 25℃ using a flat stirred vessel, and the membrane-side-mass-transfer coefficient was 1.217×10-5 mol/cm2·s·atm in CO2/N2-amine system. A diffusion model based on mass transfer with fast-reaction was proposed to predict the performance of the absorber.
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Caplow M, J. Am. Chem. Soc., 90, 6795 (1968)
Danckwerts PV, "Gas-Liquid Reactions," McGraw-Hill, New York (1970)
Doraiswany LK, Sharma MM, "Heterogeneous Reaction: Analysis, Examples and Reactor Design," John Wiley & Sons, New York, 2, 22 (1984)
Hikita H, Asai S, Int. Chem. Eng., 4, 332 (1964)
Hikita H, Asai S, Takatsuka T, Chem. Eng. J., 11, 131 (1976)
Karoor S, Sirkar KK, Ind. Eng. Chem. Res., 32, 674 (1993)
Lee SS, "Gas Absorption with Chemical Reaction in Emulsion," Ph.D. Dissertation, Pusan National University (1997)
Londale HK, J. Membr. Sci., 10, 81 (1982)
Messaoudi B, Sada E, J. Chem. Eng. Jpn., 29(1), 193 (1996)
Qi Z, Cussler EL, J. Membr. Sci., 23, 321 (1985)
Rudisill EN, Leven MD, Chem. Eng. Sci., 45, 2991 (1990)
Sada E, Kumazawa H, Han ZQ, Matsuyama H, AIChE J., 31, 1297 (1985)
Satori G, Savage DW, Ind. Eng. Chem. Fundam., 22, 239 (1983)
Sirkar KK, "Other New Membrane Process," Ho, S.W. and Sirkar, K.K. Eds., Van Nostrand Reinhold, New York, 885 (1992)
Yang MC, Cussler EL, AIChE J., 32, 1910 (1986)
Yih S, Sen K, Ind. Eng. Chem. Res., 27, 2237 (1988)
