HETP Evaluation of Packing Laboratory Scale Distillation Column to Benzaldehyde Purification Process
Main Article Content
Abstract
This study analyzes the literature on techniques for estimating HETP values for various packing structure models, ranging from theoretical to semi-empirical to shortcut methods. Packing structures of various meshes and shapes were studied on the purification of benzaldehyde from the mixture of benzaldehyde and cinnamaldehyde. The packing structures M-50, M-80, O-80, and S-80 were estimated using Fenske’s approach as 0.052, 0.053, 0.045, and 0.056, respectively. Experiment data and simulation result obtained by commercial software were utilized to validate the packing's HETP value. A pilot of the vacuum batch distillation system was fabricated including a column filled with packing structures. The results indicated that the HETP value between experiment and simulation is within 0.6 percent deviation. On the pilot scale, the results of the benzaldehyde purifying were validated in a batch distillation system with the O-80 packing structure. This system will be developed for the larger scale, and it will very practical and useful.
Keywords
Natural benzaldehyde synthesis, HETP evaluation, batch distillation, random packing, simulation
Article Details
References
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[12] V. Bessou, D. Rouzineau, M. Prévost, F. Abbé, C. Dumont, J.-P. Maumus, M. Meyer, Performance characteristics of a new structured packing. Chemical Engineering Science, 2010. 65(16): p. 4855-4865. https://doi.org/10.1016/j.ces.2010.05.029
[13] H. Li, M. Han, X. Gao, X. Li, Isobaric vapor-liquid equilibrium for binary system of cinnamaldehyde+benzaldehyde at 10, 20 and 30kPa, Fluid Phase Equilibria, 364 (2014) 62-66. https://doi.org/10.1016/j.fluid.2013.12.002
[14] C. L. Yaws, M. A. Satyro, Chapter 1 - Vapor Pressure - Organic Compounds, in: C. L. Yaws (Ed.) The Yaws Handbook of Vapor Pressure (Second Edition), Gulf Professional Publishing, 2015, pp. 1-314. https://doi.org/10.1016/B978-0-12-802999-2.00001-5
[2] Buck, Keith T., Anthony J. Boeing, and Joseph E. Dolfini, Method of producing benzaldehyde, U.S. Patent No. 4,673,766, 16 Jun, 1987.
[3] P. Wright, J. Abbot, The oxidation of cinnamaldehyde with alkaline hydrogen peroxide, Int. J. Chem. Kinet., 1993, 25(1), 901-911. https://doi.org/10.1002/kin.550251104
[4] Z. J. Yang, H.G. Jiang, X. T. Zhou, Y. X. Fang, H. B. Ji, β-Cyclodextrin polymer promoted green synthesis of cinnamaldehyde to natural benzaldehyde in aqueous solution, Supramol. Chem., 2012, 24(6), 379-384. https://doi.org/10.1080/10610278.2012.688119
[5] Z. Yang, H. Ji. 2-Hydroxypropyl-β-cyclodextrin polymer as a mimetic enzyme for mediated synthesis of benzaldehyde in water, ACS Sustain. Chem. Eng., 2013, 1(9), 1172-1179. https://doi.org/10.1021/sc4001059
[6] Bravo, J. L., Rocha, J. A., Fair, J. R., Mass transfer in Gauze Packings, Hydrocarbon Process, 1985, 64, 91-95
[7] Bravo, J. L., Rocha, J. A., Fair, J. R., A comprehensive model for the performance of columns containing structured packings, Inst. Chem. Eng. Symp. Ser. 1992, 128, A489-A507.
[8] Billet, R., Schultes, M., Predicting mass transfer in packed columns, Chem. Eng. Technol. 1993, 16, 1-9. https://doi.org/10.1002/ceat.270160102
[9] Wang, G. Q., Yuan, X. G., Tang, Z. L., Chen, J. B., & Yu, K. T., A shortcut method for estimating the HETP of structured packed distillation columns at elevated pressure, Chemical Engineering & Technology, 28(7), 767-772. 2005. https://doi.org/10.1002/ceat.200500065
[10] Henry Z. Kister, Distillation Design, McGraw-Hill, 1992, pp. 523 - 536.
[11] Francisco Carrillo, Ana Martin, and Antonio Rosello, A shortcut method for the estimation of structured packings HETP in distillation, Chemical Engineering & Technology, 23, 2000, pp. 425 - 428. https://doi.org/10.1002/(SICI)1521-4125(200005)23:5<425::AID-CEAT425>3.0.CO;2-8
[12] V. Bessou, D. Rouzineau, M. Prévost, F. Abbé, C. Dumont, J.-P. Maumus, M. Meyer, Performance characteristics of a new structured packing. Chemical Engineering Science, 2010. 65(16): p. 4855-4865. https://doi.org/10.1016/j.ces.2010.05.029
[13] H. Li, M. Han, X. Gao, X. Li, Isobaric vapor-liquid equilibrium for binary system of cinnamaldehyde+benzaldehyde at 10, 20 and 30kPa, Fluid Phase Equilibria, 364 (2014) 62-66. https://doi.org/10.1016/j.fluid.2013.12.002
[14] C. L. Yaws, M. A. Satyro, Chapter 1 - Vapor Pressure - Organic Compounds, in: C. L. Yaws (Ed.) The Yaws Handbook of Vapor Pressure (Second Edition), Gulf Professional Publishing, 2015, pp. 1-314. https://doi.org/10.1016/B978-0-12-802999-2.00001-5