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http://dx.doi.org/10.7464/ksct.2017.23.2.163

Separation of Waste TNT and RDX Mixture Using SMB Process  

Oh, Donghoon (Department of Chemical & Biomolecular Engineering Yonsei National University)
Kim, Sunhee (Department of Chemical & Biomolecular Engineering Yonsei National University)
Lee, Keundeuk (Agency for Defense Development)
Ahn, Iksung (Department of Chemical & Biomolecular Engineering Yonsei National University)
Lee, Chang-Ha (Department of Chemical & Biomolecular Engineering Yonsei National University)
Publication Information
Clean Technology / v.23, no.2, 2017 , pp. 163-171 More about this Journal
Abstract
Currently, researches on recycling and reuse of waste energetic materials have recently gained a great attention from advanced countries due to ever tightening environmental regulations. In this study, as a part of a recycling technology, the experiments and dynamic simulation of simulated moving bed (SMB) process were performed to efficiently separate TNT and RDX from their mixture, which are main components of ammunition. In order to determine the operation zone of SMB process, the retention times of TNT and RDX were measured using HPLC at different flow rates and the adsorption equilibrium of each component was obtained by using a moment method. According to the adsorption equilibrium and the triangle theory of SMB process, four operation points were determined and separation experiments were carried out by the SMB process using the solvent consisting of acetonitrile and water. Two different mixing ratios (6:4 and 1:1) of acetonitrile and water were chosen for the experiment due to the great impact of mixing ratio of the solvent on separation. The performance of SMB process was evaluated by purity, recovery, productivity and solvent consumption. Pure TNT and RDX were successfully obtained from the SMB process and the dynamic simulation for the SMB process agreed well with the experimental results. Therefore, the dynamic model could be applied for predicting the dynamic behavior of the SMB process and designing a large scale SMB process.
Keywords
Adsorptive separation; Simulated moving bed; TNT; RDX; Dynamic Simulation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Cho, C. H., Heo, W. O., and Yoon, J. H., "A study on the Demilitarization of the Guided Missile," J. KIMST, 364, 91-98 (2010).
2 Burch, D., Johnson, M. O., and Sims, K., "Value Added Products from Reclamation of Military Munitios," Waste Manage., 17, 159-163 (1997).
3 http://17greengrowth.pa.go.kr (accessed Mar. 2012).
4 Kim, K. S., "The Present State of Domestic Acceptance of Various International Conventions for the Prevention of Marine Pollution," J. Korean Soc. Mar. Environ. & Safety, 12, 293-300 (2006).
5 Kim, H. S., "Basic Technologies for the Development of High Explosives," Korean. Chem. Eng. Res., 44, 435-443 (2006).
6 http://www.ch2m.com/corporate/ (accessed 2009).
7 http://www.dynasafe.com (accessed 2008).
8 http://www.tbs-sct.gc.ca/pol/doc-eng.aspx?id=12063§io=text (accessed 2006).
9 http://www.britanica.com (accessed 2008).
10 Van Ham, N. H. A., "Recycling and Disposal of Munitions and Explosives," Waste Manage., 17, 147-150 (1997).
11 Krause, H. H., "Recycling and Disposal Techniques for Energetic Materials," Demilitarisat. Munit., 16, 73-80 (1997).
12 http://en.wikipedia.org/wiki (accessed 2008).
13 Noyes, R., "Chemical Weapons Destruction and Explosive Waste / Unexploded Ordnance Remediation," Noyes Publications, Westwood., 235 (1996).
14 Kim, S. H., Nyande, B. W., Kim, H. S., Park, J. S., Lee. W. J., and Oh. M., "Numerical Analysis of Thermal Decomposition for RDX, TNT and Composition B," Korean Chem. Eng. Res., (2016).
15 Bae, Y. S., and Lee, C. H., "SMB Process for Chiral Separation Prospectives of Industrial Chemistry," 1st ed., John Wiley & Sons, INC., New Jersey (2003).
16 Kim, K, K., "Operating Strategy Development Using Partial-Feed and Partial-Discard in Simulated Moving Bed Chromatography," M.S. Dissertation, University of Yonsei, Seoul, (2008).
17 Minceva, M., Rodrigues, A. E., and Haley, M. V., "Modeling, Simulation and Optimization," UOP'S PAREX., (2016).
18 Francotte, E. R., and Richert, P. A., "Applications of Simulated Moving Bed Chromatography to the Separation of the Enantiomers of Chiral Drugs," J. Chromatogr. A., 769, 101-107 (1997).   DOI
19 http://www.knauer.net/systems-solutions (accessed 2017).
20 Song, J. Y., Oh D. H., and Lee C. H., "Effects of a Malfunctional Column on Conventional and FeedCol-simulated Moving Bed Chromatography Performance," J. Chromatogr. A., 1403, 104-117 (2015).   DOI
21 Kim, K. M., Lee, C. H., "Back Fill-Simulated Moving Bed Operation for Improving the Separation Performance of Simulated Moving Bed Chromatography," J. Chromatogr. A., 1311, 79-89 (2013).   DOI
22 Rajendran, A., Paredes, G., and Mazotti, M., "Simulated Moving Bed Chromatography for the Separation of Enantiomers Chromatography," J. Chromatogr. A., 1216, 709-739 (2009).   DOI
23 Zang, Y., and Wankat, P. C., "SMB Operation Strategy-Partial Feed," Ind. Eng. Res., 41(10), 2504-2511 (2002).   DOI
24 Bae, Y. S., Moon, J. H., and Lee, C. H., "Effects of Feed Concentration on the Startup and Performance Behaviors of Simulated Moving Bed chromatography," Ind. Eng. Chem., 45(2), 777-790 (2006).   DOI
25 Juza, M., Mazotti, M., and Morbidelli, M., "Simulated Moving-Bed Chromatography and Its Application to Chirotechnology," Tibitech., 18, 108-118 (2000).   DOI
26 Mazzotti, M., Stori, G., and Morbidelli, M., "Optimal Operation of Simulated Moving Bed Units for Nonlinear Chromatographic Separation," J. Chromatogr. A., 805, 37-44 (1998).   DOI
27 Strube, J., Altenhoner, U., Meurer, M., Schimidt-Traub, H., and Schulte, M., "Dynamic Simulation of Simulated Moving-Bed Chromatographic Processes for the Optimization of Chiral Separations," J. Chromatogr. A., 769, 81-92 (1997).   DOI
28 Kniep, H., Mann, G., Vogel, C., and Seidel-Morgenstern, A., "Separation of Enantiomers through Simulated Moving-Bed Chromatography," Chem. Eng. Technol., 23, 853-857 (2000).   DOI
29 Pais, L, S., Loureiro, J, M., and Rodrigues, A, E., "Modeling, Simulation and Operation of a Simulated Moving Bed for Continuous Chromatographic Separation of 1,1'-bi-2-naphthol Enantiomers," J. Chromatogr. A., 769, 25-35 (1997).   DOI
30 Strube, J., and Schmidt-Traub, H., "Dynamic Simulation of Simulated-Moving-Bed Chromatographic Processes," Comput. Chem. Eng., 22, 1309-1317 (1998).   DOI