회분식 충전 증류탑을 이용한 아세톤-메탄올-2-프로판올계의 농도분포 예측

이영상; 주동표

HWAHAK KONGHAK, Vol.37, No.3, 453-458, June, 1999

Export Citation

회분식 충전 증류탑을 이용한 아세톤-메탄올-2-프로판올계의 농도분포 예측

Estimation of Concentration Profiles of the Acetone-Methanol-2-Propanol System in a Batch Packed Distillation Column

이영상, 주동표

초록

1-cm Pall ring이 150-cm 높이로 충전된 내경 10-cm인 회분식 증류탑을 사용하여 acetone-methanol-2-propanol계의 농도분포를 실측하고 이를 이론적 농도분포와 비교하였다. 실험은 1 기압, 전환류조건 및 0.05gmo1/s의 증기속도하에서 수행되었다. 이론적인 농도분포는 Krishna와 Standard가 제안한 행렬모델을 사용하여 계산되었으며 물질전달계수 및 전달단위높이와 같은 계의 물질전달 특성은 Onda 등, Bravo와 Fair, Billet 및 Bolles와 Fair의 경험식을 사용하여 추정하였다. 계산된 농도분포는 실측치와 대체로 잘 부합하였으며 Bolles와 Fair의 방법이 실측된 농도를 0.021 AAD 이내로 가장 잘 모사함을 알 수 있었다.

Concentration profiles of the acetone-methanol-2-propanol system, obtained experimentally using a batch distillation column packed with 1-cm Pall rings were compared with theoretical profiles. The I.D. and the total packed height of the column were 10-cm and 150-cm respectively. The experiments were performed under 1 atm, total reflux condition and a vapor boil-up rate of 0.05 gmol/s. The theoretical concentration profiles were calculated using the matrix model proposed by krishna and Standard. The mass transfer characteristics of the system, such as mass transfer coefficients and the heights of a transfer unit, were estimated by empirical correlations of Onda et al., Bravo and Fair, Billet, and Bolles and Fair. The calculated profiles were in reasonable agreement with the experimental profiles. It was found that the method of Bolles and Fair gave the best results showing 0.021 AAD between predicted and measured concentrations.

Keywords:Ternary Batch Distillation;Packed Tower;Number of Transfer Units;Concentration Profiles

[References]

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[1] Toor HL, AIChE J., 10(4), 448 (1964)

[2] Krishnamurthy R, Taylor R, Ind. Eng. Chem. Process Des. Dev., 24, 513 (1985)

[3] Krishna R, Standart GL, AIChE J., 22, 383 (1976)

[4] Gorak A, Vogelpohl A, Sep. Sci. Technol., 20(1), 33 (1985)

[5] Zogg M, Ph.D. Thesis, ETH Zurich (1972)

[6] Taylor R, Powers MF, Lao M, Arehole A, The Institute of Chemical Engineers Symposium Series No. 104, Distillation and Absorption, B321 (1987)

[7] Bravo JL, Fair JR, Ind. Eng. Chem. Process Des. Dev., 21, 162 (1982)

[8] Arwickar KJ, Ph.D. Thesis, in Chemical Engineering, Univ. of Califonia, Santa Barbara, CA (1981)

[9] Onda K, Takeuchi H, Okumoto Y, J. Chem. Eng. Jpn., 1, 56 (1968)

[10] Billet R, Schultes M, Chem. Eng. Technol., 18(6), 371 (1995)

[11] Billet R, "Packed Towers in Processing and Environmental Technology," VCH (1995)

[12] Bolles WL, Monsanto C, Fair JR, Chem. Eng., 12, 109 (1982)

[13] Perry RH, Green DW, "Perry's Chemical Engineers' Handbook," McGraw-Hill, 7th edition, section 5, 32 (1997)

[14] Wilson GM, J. Am. Chem. Soc., 86, 127 (1964)

[15] Ponter AB, Au-Yeung PH, "Handbook of Heat and Mass Transfer," Cheremisinoff, N.P. (Ed.), Gulf Publishing Corp., Houston, TX, Chap. 20, Vol. II, 903 (1986)

[16] Gultekin N, J. Chem. Eng. Data, 35, 132 (1990)

[17] Gultekin N, J. Chem. Eng. Data, 34, 168 (1989)

[18] Hankinson RW, Thomson GH, AIChE J., 25, 653 (1979)

[19] Antoine C, Comput. Rend., 107, 681 (1888)

[20] Lee BI, Kesler MG, AIChE J., 21, 510 (1975)

[21] Chung TH, Lee LL, Starling KE, Ind. Eng. Chem. Fundam., 23, 6 (1984)

[22] Reichenberg D, NPL Rept. Chem. 29, National Physical Laboratory, Teddington, England, May (1974)

[23] Reichenberg D, Natl. Eng. Lab. Rept. Chem. 53, East Kilbride, Glasgow, Scottland (1977)

[24] Reichenberg D, Symp. Transp. Prop. Fluids and Fluid Mixtures, Natl. Eng. Lab., East Kilbride, Glasgow, Scottland (1979)

[25] van Velzen D, Cardozo RL, Langenkamp H, "Liquid Viscosity and Chemical Constitution of Organic Compounds: A New Correlation and a Compilation of Literature Data," Euratom, 4735e, Joint Nuclear Research Center, Ispra Establishment, Italy (1972)

[26] Yaws CL, Miller JW, Shah PN, Schorr GR, Patel PM, Chem. Eng., 83(25), 153 (1976)

[27] Grunberg L, Nissan AH, Nature, 164, 799 (1949)

[28] Wilke DR, Chang P, AIChE J., 1, 264 (1955)

[29] Vignes A, Ind. Eng. Chem. Fundam., 5, 189 (1966)

[30] Fuller EN, Schettler PD, Giddings JC, Ind. Eng. Chem., 58(5), 18 (1966)

[31] Macleod DB, Trans. Faraday Soc., 19, 38 (1923)

[32] Pranusmitz JM, "Molecular Thermodynamics of Fluid-phase Equilibria," Prentice-Hall, Englewood Cliffs, N.J., 128 (1969)