Hidrodinamika u ekstrakcionim kolonama tipa rotacionog disk kontaktora (RDK)

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Milan Sovilj Momčilo Spasojević Nikola Milivojević

Apstrakt

U ovom radu je dat pregled istraživanja koja se odnose na određivanje hidrodinamike  u  ekstrakcionim kolonama sa rotacionim diskovima (RDK kolonama), pri čemu su korišćeni različiti dvofazni sistemi tečno-tečno. Od hidrodinamičkih karakteristika analizirane su sledeće veličine: srednji prečnik kapi dispergovane faze raspodela veličina prečnika kapi i sadržaj dispergovane faze u disperziji. Konstantovano je da Sauterov srednji prečnik kapi  i raspodela veličina kapi znatno zavise od brzine rotiranja diskova koji su postavljeni na centralnu  osovinu. Pokazano je da  postoji relativno mala promena srednjeg prečnika kapi pri povišenju protoka dispergovane faze izuzev u slučaju korišćenja malih prečnika otvora distributora, odnosno da on nije funkcija protoka faza. Utvrđeno je da brzina obrtanja diskova  ima najveći uticaj na raspodelu veličina  prečnika kapi u radnom delu kolone. Sadržaj dispergovane faze se povećava sa porastom protoka faza. Promene u površinskoj brzini kontinualne faze imale su minimalan uticaj na sadržaj dispergovane faze, dok je  povećanje površinske brzine dispergovane faze  izazvalo porast sadržaja dispergovane faze. U ovom radu su prikazane i analizirane neke od empirijskih korelacija, preuzetih iz literature, koje se odnose na Sauterov  srednji prečnik kapi i  sadržaj dispergovane faze.Ove korelacije su prikazane kao funkcije operativnih karakteristika, geometrije kolonskog uređaja  i fizičkih osobina dvofaznih sistema tečno-tečno.

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Kako citirati
SOVILJ, Milan; SPASOJEVIĆ, Momčilo; MILIVOJEVIĆ, Nikola. Hidrodinamika u ekstrakcionim kolonama tipa rotacionog disk kontaktora (RDK). Procesna tehnika, [S.l.], v. 32, n. 2, p. 20-25, dec. 2020. ISSN 2217-2319. Dostupno na: <https://izdanja.smeits.rs/index.php/procteh/article/view/6191>. Datum pristupa: 27 july 2021
Sekcija
Procesne tehnologije

Reference

[1] Lo, T. C., Baird, M. H. I. Hanson, C. (1983), Handbook of Sol¬vent Extraction, John Wiley and Sons, New York, pp. 501-531. ISBN 0471041645 9780471041641
[2] Lou, G. S., Li, H. B., Fei, W. Y., Wang, J. D., in Rong, B. G., Hu, Y. D., Han, F. Y., (eds.) (1998), Advances in Separation Science and Technology, China Environmental Science Press, pp. 208-211.
[3] Perry, R. H., Green, D. W. (eds.) (1999), ``Perry`s Chemical Engineers` Handbook``7th ed., McGraw-Hill, Inc., New York (1999). pp.15-22  15-46.
[4] Sovilj, M. N. (2004), Difuzione operacije, Univerzitet u Novom Sadu, Tehnološki fakultet, Novi Sad, Srbija,str. 173-192.
[5] Koch Modular Process Systems, LLC.45 Eisenhower Drive, Suite 350 Paramus, NJ 07652, (2000).
[6] Vermijs, H. J. A., Kramers, H. (1954), Liquid-liquid Extraction in a Rotating Disc Contactor,Chem.Eng. Sci.,3 (2), pp. 55-64.https://doi.org/10.1016/0009-2509(54)85014-7.
[7]Aiffah, W. N. I., Aisyah, S. Z., Fashihah, N. (2014), Performance Analysis of Rrotating Disc Contactor (RDC)Column, AIP Conference Proceedings, 1602, p. 1050.https://doi.org/10.1063/1.488261.
[8]Tong, J., Furusaki, Sh. (1995),Mean Drop Size and Size Distribution in Rotating Disc Contactor Used for Reversed Micellar Extraction of Proteins, J. Chem.Eng., 28 (5), pp. 582-589. https://doi.org/10.1252/jcej.28.582.
[9]Wang, Y. D., Fei, W. Y., Sun, J. H., Wan, Y. K. (2002), Hydrodynamics and Mass Transfer Performance of a Modified Rotating Disc Contactor (MRDC), Chem. Eng. Res. Des., 80 (4), pp. 392-400.https://doi.org/10.1205/026387602317446434.
[10] Moreira, E., Pimenta, L. M., Carneiro, L. L., Faria, R. C. L., Mansur, M. B., Ribeiro, C. P. (2005), Hydrodynamic Behavior of a Rotating Disc Contactor Under Low Agitation Conditions, Chem. Eng. Commun., 192 (8), pp. 1017-1035.
https://doi.org/10.1080/009864490522542.
[11]Asadollahzadeh, M., Torab-Mostaedi, M., Torkaman, R., Safdari, J. (2016),A New Model for Prediction of Drop Size Distribution in a Liquid–Liquid Extraction Column,RSC Advances., 6, pp. 82496-82504.https://doi.org/10.1039/C6RA14954E.
[12] Hartland, S., Mecklenburgh, J. C. (1966), A Comparison of Differential and Stagewise Counter Current Extraction with Backmixing,Chem. Eng. Sci., 21, pp. 1209–1221. https://doi.org/10.1252/jcej.30.79.
[13]Cruz-Pinto, J. J. C., Korchinsky, W. J., Al Husseini, R.(1983), Mass Transfer to Nonuniform Dispersions in Countercurrent Flow Liquid-Liquid Extraction Columns. In Proceedings of ISEC’83 Conference, American Institute of Chemical Engineers, Denver, CO.
[14]Kirou, V.I., Tavlarides, L.L., Bonnet, J.C., Tsouris, C. (1988),Flooding, Hold-up, and Drop Size Measurements in a Multistage Column Extractor. AIChE Journal, 34 (2), pp.283-292.https://doi.org/10.1002/aic.690340212.
[15] Simmons, M. J. H., Zaidi, S. H., Azzopardi, B. J. (2000), Comparison of Laser-Based Drop-Size Measurement Techniques and Their Application to Dispersed Liquid-Liquid Pipe Flow, J. Opt. Eng., 39 (2), p. 505. https://doi.org/10.1117/1.602388.
[16]Mišek. T. (1964), Coalescence of Drops in an Agitated Liquid-Liquid Extractor,
Collect. Czech. Chem. Commun., 29, pp. 2086-2093.https://doi.org/10.1135/cccc19642086.
[17] Ghorbanian, S. A., Abolghasemi, H., Radpour, S. R. (2011), Modelling of Mean Drop Size in a Extraction Spray Column and Developing a New Model, Iran. J. Chem. Eng., 30 (4) 89-96.
[18] Kumar, A., Hartland, S. (1986), Prediction of Drop Size in Rotating Disc Extractors, Can. J. Chem. Eng., 64,pp. 915-924.https://doi.org/10.1002/cjce.5450640605.
[19] Mugele, R. A., Evans, H. D. (1951), DropletSize Distribution in Sprays,Ind. Eng. Chem., 43 (6), pp. 1317-1324.https://doi.org/10.1021/ie50498a023.
[20]Al-Rahawi, A. M. I. (2007), New Predictive Correlations for the Drop Size in a Rotating Disc Contactor Liquid-Liquid ExtractionColumn, Chem. Eng. Tech., 30(2), pp. 1-10.DOI: 10.1002/ceat.200600278.
[21]Behzad, F., Bahmanyar, H., Molavi, H. , Manafi, S.(2015), Mean Drop Diameter in a Rotating Sieved Disc Contactor, Inter. J.Tech. 6 (1), 31-43.DOI:10.14716/IJTECH.V6I1.779Corpus ID: 111529547.
[22] Kumar, A., Hartland, S. (1996), Unified Correlations for the Prediction of Drop Size in Liquid−Liquid Extraction Columns, Ind. Eng. Chem. Res., 35 (8), pp. 2682-2695.https://doi.org/10.1021/ie950674w.
[23] Gayler, R., Roberts, V. W., Pratt, H. R. C. (1953), Liquid-liquid Extraction: A
Further Study of Holdup in Packed Column, Trans. Instn. Chem. Engrs., 31, pp. 57-68.
[24] Li, N. N., Calo, J. M. (1992), Separation and Purification Technology, Marcel Dekker, Inc., New York 10016, ISBN 0-8247-8721-8.
[25] Coimbra, J. S. R., Mojola, F., Meirelles, A. J. A. (1998), Dispersed Phase Hold-Up in a Perforated Rotating Disc Contactor (PRDC) Using Aqueous Two-Phase Systems, J. Chem. Eng., 31 (2), pp. 277-280. https://doi.org/10.1252/jcej.31.277.
[26]Pina, C. G., Meirelles, A. (2000), Deacidification of Corn Oil by Solvent Extraction in a Perforated Rotating Disc Column, JAOCS, 77 (5), pp. 553-559. DOI: 10.1007/s11746-000-0088-3.
[27] Hemmati, A. R., Shirvani, M., Torab-Mostaedi, M., Ghaemi, A. (2015), Hold-up andFlooding Characteristics in a Perforated Rotating Disc Contactor (PRDC), RSC Advances, 5, pp.. 63025-63033.DOI: 10.1039/C5RA08938G.