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Received October 30, 2009
Accepted December 22, 2009
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Experimental evaluation of a modified fully thermally coupled distillation column
Department of Chemical Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Korea 1Department of Chemical Engineering, Dong-A University, 840 Hadan-dong, Saha-gu, Busan 604-714, Korea
Korean Journal of Chemical Engineering, July 2010, 27(4), 1056-1062(7), 10.1007/s11814-010-0205-8
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Abstract
A modified fully thermally coupled distillation column replacing the conventional distillation system is introduced, and its performance is experimentally evaluated for the stable operation of the column. The existing distillation system is modified to an energy-efficient distillation column for the reduction of investment cost and energy requirement. The experiment is conducted for the separation of methanol, ethanol and n-propanol mixture using a 4-in sieve tray column. The temperatures at seven different locations of the column are measured to monitor the column_x000D_
operation, and the measurements indicate that the column is stably operable. The stable operation proves that neither compressor nor pump is necessary for the vapor or liquid flow between tray sections. The experimental result is compared with that of the HYSYS simulation to show how satisfactory the separation is. The modeling of temperature variation provides a successful prediction of the temperature variation.
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References
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Amminudin KA, Smith R, Thong DYC, Towler GP, Trans. IchemE, Part A., 79, 701 (2001)
Kim YH, J. Chem. Eng. Jpn., 34(2), 236 (2001)
Kim YH, Chem. Eng. J., 85(2-3), 289 (2002)
Kim YH, Chem. Eng. J., 89(1-3), 89 (2002)
Kim YH, Nakaiwa M, Hwang KS, Korean J. Chem. Eng., 19(3), 383 (2002)
Kim YH, Comput. Chem. Eng., 29(7), 1555 (2005)
Kim YH, Chem. Eng. Process., 45(4), 254 (2006)
Kim YH, Ind. Eng. Chem. Res., 40(11), 2460 (2001)
Kim YH, Choi DW, Hwang KS, Korean J. Chem. Eng., 20, 755 (2003)
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Cho Y, Kim B, Kim D, Han M, Lee M, J. Process Control, 19(6), 932 (2009)
