Comparison of Three- and Two-Column Configurations in Ethanol Dehydration Using Azeotropic Distillation

Jungho Cho; Jongki Park; Jong-Ki Jeon

Journal of Industrial and Engineering Chemistry, Vol.12, No.2, 206-215, March, 2006

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Comparison of Three- and Two-Column Configurations in Ethanol Dehydration Using Azeotropic Distillation

Jungho Cho , Jongki Park¹, and Jong-Ki Jeon^{2, †}

Department of Chemical Engineering, Dong-Yang University, Kyoungbuk 750-711, Korea
¹Korea Institute of Energy Research, 72-1, Daejeon 303-343, Korea
²Department of Chemical Engineering, Kongju National University, Chungnam 314-701, Korea

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In this study, modeling and optimization works have been performed using benzene as an entrainer to obtain an anhydrous ethanol product from a dilute ethanol aqueous stream. Comparative studies were also performed between two and three-column configurations in the ethanol dehydration process. Non-random two-liquid (NRTL) liquid activity coefficient models with binary adjustable parameters were used to simulate an azeotropic distillation process. The two-column configuaration was superior to the three-column configuration with respect to the initial capital costs and the purity of the dehydrated ethanol product.

Keywords:azeotropic distillation;simulation;optimization;two-column configuration;three-column configuration

[References]

Davenport RE, CEH Marketing Research Report: Ethyl Alcohol, SRI International, Menlo Park (2002)
Lide DR, CRC Handbook of Chemistry and Physics, 85th Edn., CRC press, Boca Raton (2004)
Holland CD, Fundamentals of Multicomponent Distillation, McGraw-Hill, Columbus (1981)
Al-Amer AM, Ind. Eng. Chem. Res., 39(10), 3901 (2000)
Font A, Asensi JC, Ruiz F, Gomis V, Ind. Eng. Chem. Res., 42(1), 140 (2003)
Fele L, Stemberger NZ, Grilic V, J. Chem. Eng. Data, 45, 784 (2000)
Tao L, Malone MF, Doherty MF, Ind. Eng. Chem. Res., 42(8), 1783 (2003)
Babara D, Brandani V, Giacomo GD, Chem. Eng. Sci., 40, 2287 (1985)
Ligero EL, Ravagnani TMK, Chem. Eng. Process., 42(7), 543 (2003)
Pinto RTP, Wolf-Maciel MR, Lintomen L, Comput. Chem. Eng., 24(2-7), 1689 (2000)
Cho JS, Park SK, Lim JS, Kim JD, Lee YY, Chun HS, HWAHAK KONGHAK, 29(1), 111 (1991)
Cho JS, Lim JS, Kim JD, Lee YY, Chun HS, HWAHAK KONGHAK, 29(4), 487 (1991)
Chung IS, Song KM, Hong WH, Chang HN, HWAHAK KONGHAK, 32(5), 734 (1994)
Kim SC, Lee DW, Hong WH, Korean J. Chem. Eng., 13(3), 275 (1996)
Chang JH, Yoo JK, Ahn SH, Lee KH, Ko SM, Korean J. Chem. Eng., 15(1), 28 (1998)
Kim SG, Lim GT, Park SW, J. Korean Ind. Eng. Chem., 9, 464 (1998)
Venkatesh CK, AIChE Annual Meeting, 1 (1984)
Simulation Science Inc., PRO/II user guide, Simulation Science Inc., SouthLake Forest (2001)
Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)
Gmehling J, Onken U, Vapor-Liquid Equilibrium Data Collection, Aqueous Organic Systems, Chemistry Data Series, Vol. I, Part 1, DECHEMA, Frankfurt (1981)
Gmehling J, Onken U, Liquid-Liquid Equilibrium Data Collection, Aqueous Organic Systems, Chemistry Data Series, Vol. I, Part 1, DECHEMA, Frankfurt (1977)
Nelder JA, Mead RA, Comput. J., 7, 303 (1965)
Doherty MF, Perkins JD, Chem. Eng. Sci., 33, 281 (1978)
Doherty MF, Perkins JD, Chem. Eng. Sci., 34, 1401 (1979)

[Referenced By]

[Related Articles]

[1] Davenport RE, CEH Marketing Research Report: Ethyl Alcohol, SRI International, Menlo Park (2002)

[2] Lide DR, CRC Handbook of Chemistry and Physics, 85th Edn., CRC press, Boca Raton (2004)

[3] Holland CD, Fundamentals of Multicomponent Distillation, McGraw-Hill, Columbus (1981)

[4] Al-Amer AM, Ind. Eng. Chem. Res., 39(10), 3901 (2000)

[5] Font A, Asensi JC, Ruiz F, Gomis V, Ind. Eng. Chem. Res., 42(1), 140 (2003)

[6] Fele L, Stemberger NZ, Grilic V, J. Chem. Eng. Data, 45, 784 (2000)

[7] Tao L, Malone MF, Doherty MF, Ind. Eng. Chem. Res., 42(8), 1783 (2003)

[8] Babara D, Brandani V, Giacomo GD, Chem. Eng. Sci., 40, 2287 (1985)

[9] Ligero EL, Ravagnani TMK, Chem. Eng. Process., 42(7), 543 (2003)

[10] Pinto RTP, Wolf-Maciel MR, Lintomen L, Comput. Chem. Eng., 24(2-7), 1689 (2000)

[11] Cho JS, Park SK, Lim JS, Kim JD, Lee YY, Chun HS, HWAHAK KONGHAK, 29(1), 111 (1991)

[12] Cho JS, Lim JS, Kim JD, Lee YY, Chun HS, HWAHAK KONGHAK, 29(4), 487 (1991)

[13] Chung IS, Song KM, Hong WH, Chang HN, HWAHAK KONGHAK, 32(5), 734 (1994)

[14] Kim SC, Lee DW, Hong WH, Korean J. Chem. Eng., 13(3), 275 (1996)

[15] Chang JH, Yoo JK, Ahn SH, Lee KH, Ko SM, Korean J. Chem. Eng., 15(1), 28 (1998)

[16] Kim SG, Lim GT, Park SW, J. Korean Ind. Eng. Chem., 9, 464 (1998)

[17] Venkatesh CK, AIChE Annual Meeting, 1 (1984)

[18] Simulation Science Inc., PRO/II user guide, Simulation Science Inc., SouthLake Forest (2001)

[19] Renon H, Prausnitz JM, AIChE J., 14, 135 (1968)

[20] Gmehling J, Onken U, Vapor-Liquid Equilibrium Data Collection, Aqueous Organic Systems, Chemistry Data Series, Vol. I, Part 1, DECHEMA, Frankfurt (1981)

[21] Gmehling J, Onken U, Liquid-Liquid Equilibrium Data Collection, Aqueous Organic Systems, Chemistry Data Series, Vol. I, Part 1, DECHEMA, Frankfurt (1977)

[22] Nelder JA, Mead RA, Comput. J., 7, 303 (1965)

[23] Doherty MF, Perkins JD, Chem. Eng. Sci., 33, 281 (1978)

[24] Doherty MF, Perkins JD, Chem. Eng. Sci., 34, 1401 (1979)