Influence evaluation of ionic liquids on the alteration of nitrification waste for thermal stability |
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| Institution: | 1. School of Safety Science and Engineering, Changzhou University, No. 21, Gehu Mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China;2. Department of Safety, Health, And Environmental Engineering, National Yunlin University of Science and Technology, No. 123, University Rd., Sec. 3, Yunlin, 64002, Taiwan, ROC;1. College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, Jiangsu, China;2. School of Environmental & Safety Engineering, Changzhou University, Changzhou, 213164, China;3. Center for Process Safety and Industrial Disaster Prevention, School of Engineering, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan;1. Dipartimento di Scienza Applicata e Tecnologia-Politecnico di Torino, C.so Duca degli Abruzzi 21, 10129, Torino, Italy;2. Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F- 54000, Nancy, France;3. Department of Energy (DENERG), Politecnico di Torino, Viale T. Michel 5, 15121, Alessandria, Italy;1. CSE Center of Safety Excellence (CSE-Institut), Joseph-von-Fraunhofer-Str. 9, 76327, Pfinztal, Germany;2. University of Applied Sciences, Moltkestrasse 30, 76133, Karlsruhe, Germany;1. Division 2.1 ‘‘Explosion Protection Gases and Dusts’’, Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, D-12205, Berlin, Germany;2. Otto von Guericke University, Universitätsplatz 2, D-39106, Magdeburg, Germany;3. China Academy of Safety Science and Technology, Beijing, 100012, China;4. Physikalisch Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany;5. Department of Process Engineering & Applied Science, Dalhousie University, Halifax, NS, B3H 4R2, Canada;1. School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, 222005, China;2. School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan, 430070, China;3. Jiangsu Institute of Marine Resources Development, Jiangsu Ocean University, Lianyungang, 222005, China;1. School of Safety Science and Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China;2. College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, Jiangsu, China;3. Institute of Industry and Trade Measurement Technology, College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, China;4. Zhejiang Engineering Laboratory of Chemicals Safety Testing Technology and Instruments, Hangzhou, China |
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| Abstract: | Nitrification waste (NW) is the processed product of nitro compounds, flammable and explosive, and is prone to accidents due to thermal runaway. Ionic liquids (ILs) are widely used as flame retardants and have a good inhibitory effect. The effect of 1-butyl-3-methylimidazole hexafluorophosphate and 1-butyl-3-methylimidazole tetrafluoroborate as humectants on the thermal stability of NW was investigated in this paper. The microstructure and properties of the ionic liquid hybrid NW were first investigated using scanning electron microscopy. Secondly, thermogravimetric experiments were carried out on the ionic liquid mixed NW by thermogravimetric-infrared spectroscopy to analyze the decomposition law. Finally, six advanced linear regression thermokinetic models were used to calculate its apparent activation energy, pre-exponential factor, and other thermokinetic parameters, and the reaction model was simulated through multiple linear regression. The experimental research results in this paper can provide a reference for the storage and disposal of nitro compounds and their wastes. |
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| Keywords: | Humectant Thermogravimetric-infrared spectroscopy Decomposition Thermokinetic parameters Multiple linear regression |
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