Sucrose Recovery from Diluted Cane Molasses by Using Mass Transfer to the Third Liquid Layer at Contacting with Ethanol
Sugar Tech - 2024
Tóm tắt
A simple rate-based method is proposed for recovering sucrose from sugarcane molasses, focusing on its feasibility for continuous recovery. When ethanol is gently poured onto diluted molasses, sucrose is transferred to ethanol layer along with water, resulting in the formation of a distinct third layer comprising sucrose positioned between the ethanol and diluted molasses. Although this third liquid layer is metastable and dissipates when vigorously stirred, its sucrose concentration reaches a level suitable for sucrose crystal formation. Consequently, a semicontinuous operation for sucrose recovery from diluted molasses is achieved by continuously extracting the third layer while supplying ethanol to the diluted molasses. The concentration changes of sucrose within the third liquid layer over time are predicted using simple mass-transfer models based on diffusion and axial dispersion. While the prediction yields limited success, it underscores the importance of mass transfer from the liquid jet in the third layer and the role of mild mixing within the third layer in facilitating its growth and interior mass transfer. To the best of our knowledge, this study presents the first effective utilization of the third liquid layer in solvent extraction offering a method to control its formation and mass transfer for sugar recovery from molasses.
Từ khóa
Tài liệu tham khảo
Adinata, D., F. Fadillah, R. Hafiz, S. Bismo, S. Kartohardjono, and Y.W. Pratama. 2013. Characteristics of sugar separation from cane molasses using vegetable oil, n-butanol, and n-hexanes solvent in the simple tube sieve tray extraction column, International Conference on Food and Biosystems Engineering, 30 May-02 June 2013, Skiathos Island, GREECE.
Asadollahi, S., and M.H.H. Khodaparast. 2013. Optimization of molasses desugarization process using Steffen method in sugar beet factories. International Journal of Science and Innovative Research. 7 (11): 1063–1069.
Hongisto, H.J. 1977. Chromatographic separation of sugar solutions. The Finnsugar Molasses desugarization Process. Part I. International Sugar Journal 79(940): 100–104.
Iqbal, K., 1992. Recovery of sugars from cane molasses by continuous simulate moving bed ion-exclusion chromatograph. PhD dissertation to Louisiana State University.
Kanno, S., S. Meguro, and R. Kanda. 1980. Desugaring process of molasses at Kitami factory (in Japanese). Proceedings of the Research Society of Japan Sugar Refineries Technologists. 29: 79–87.
Ke, X., and X. Ping. 2014. Efficient production of L-lactic acid using co-feeding strategy based on cane molasses/glucose carbon sources. Bioresource Technology. 153: 23–29.
Kononenko, O.K., and K.M. Herstein. 1956. Nonaqueous solvent for sucrose. Industrial & Engineering Chemistry Research. 1 (1): 87–92.
Lameloise, M.-L., and R. Lewandowski. 1994. Purification of beet molasses by ion-exclusion chromatography: Fixed-bed modelling. Journal of Chromatography a. 685 (1): 45–52.
Luo, J., S. Guo, Y. Wu, and Y. Wan. 2018. Separation of sucrose and reducing sugar in cane molasses by nanofiltration. Food and Bioprocess Technology. 11: 913–925.
Moo-Young, J., P. Bu-Soo, L. Jinwon, and O. Min-Kyu. 2013. Engineered Enterobacter aerogenes for efficient utilization of sugarcane molasses in 2,3-butanediol production. Bioresource Technology. 139: 21–27.
Mouadili, H., S. Majid, O. Kamal, El.H. ElAtmani, K. Touaj, L. Lebrun, and M. Hlaibi. 2018. New grafted polymer membrane for extraction, separation and recovery processes of sucrose, glucose and fructose from the sugar industry discharges. Separation and Purification Technology. 200: 230–241.
Olbrich, H. 1963. The Molasses. Berlin: Institut für Zuckerindustrie.. Reedition Biotechnologie-Kempe GmbH 2006. http://www.btkempe.de/Molasses_OLBRICH.pdf, 9.12.2010.
Rouanne, F. 1991. Method for metering monocalcium saccharate into sugar juices, United States Patent, patent number 5104452.
Simao, P.P., and A.M. Eugenia. 2005. Solubility of NaCl, NaBr, and KCl in Water, Methanol, Ethanol, and their mixed solvents. Journal of Chemical & Engineering Data. 50: 29–32.
Sjölin, M., J. Thuvander, O.Wallberg, and F. Lipnizki., 2020. Purification of sucrose in sugar beet molasses by utilizing ceramic nano filtration and ultrafiltration membranes. Membranes. 10(5). https://doi.org/10.3390/membranes10010005
Thompson, M. 1994. The potential application of ion exclusion chromatography for additional sucrose recovery from molasses. Proceedings of The South African Sugar Technologists' Association. June 1994, 105–108.
Walid, A.L. 2007. The utilization of beet molasses as a novel carbon source for cephalosporin C production by Acremonium chrysogenum: Optimization of process parameters through statistical experimental designs. Bioresource Technology. 98: 3491–3498.
Yang, Q., J. Luo, S. Guo, X. Hang, X. Chen, and Y. Wan. 2019. Threshold flux in concentration mode: Fouling control during clarification of molasses by ultrafiltration. Journal of Membrane Science. 586 (15): 130–139.