Synthesis of novel WO3/ZrSiO4 catalysts for dehalogenation of halogenated hydrocarbons
DOI:
https://doi.org/10.30544/411Keywords:
catalyst, Tungsten (VI) oxide, Zirconium (IV) silicate, halogenated hydrocarbons, cooling equipment recyclingAbstract
This research aimed to develop a novel catalyst based on WO3/ZrSiO4 system for halogenated hydrocarbons processing. The production method of this catalyst involved extrusion and as such was simplified compared to thermo-chemical synthesis routes. It had a reduced number of process stages and a lower environmental impact at the same time. In order to examine the phase composition of the catalyst after sintering at 800 °C, the XRD analysis was carried out. The catalyst was then tested in chlorodifluoromethane dehalogenation process on laboratory scale at temperatures of 300, 400 and 500 °C in the presence of water vapor. Catalyst achieves high dehalogenation efficiencies of 88.6, 95.9, and 99.5 % for each of the process temperatures, respectively. Obtained results are in the range with those achieved by using thermo-chemically prepared dehalogenation catalysts.
References
S. Devotta, A. Finkelstein, L. Kuijpers, Montreal Protocol On Substances that Deplete the Ozone Layer, Report of the Task Force on Destruction Technologies, TUE Eindhoven, Netherlands, 2002.
S.Y. Lai, W. Pan, C. Fai Ng: Appl Catal, B, 24 (2000) 207–217.
B. Huang, C. Lei, C. Wei, G. Zeng: Environ Int, 71 (2014) 118–138.
T. Karnaukhov, A. Vedyagin, I. Mishakov, A. Bedilo, A. Volodin: Mater Sci Forum, 917 (2018) 157-161.
G. R. Lester, US 5176897 A, Crossreff
H. Zhang, C. Fai Ng, S. Yin Lai: Appl Catal, B, 55 (2005) 301–307.
W. Hua, F. Zhang, Z. Ma, Y. Tang, Z. Gao: Catal Lett, 65 (2000) 85–89.
Z. Ma, W. Hua, Y. Tang, Z. Gao: J Mol Catal A: Chem, 159 (2000) 335–345.
M. Zhen, H. Wei-Ming, T. Yi, G. Zi: Chin J Chem, 18 (2000) 341–345.
S. Kanno, H. Kawagoshi, A. Kato, T. Arato, H. Yamashita, S. Azuhata, S. Tamata, S. Ikeda, T. Yasuda, US 5877391 A, Link
B. Agarski, V. Nikolić, Ž. Kamberović, Z. Anđić, B. Kosec, I. Budak: J Cleaner Prod, 162 (2017) 7–15.
M. Sokić, Ž. Kamberović, V. Nikolić, B. Marković, M. Korać, Z. Anđić, M. Gavrilovski: Sci World J (2015). Crossreff
M.F. Mohd Na'aim, R.M. Ramli, N.A. Mohd Zabidi: Metall Mater Eng, 24 (2018) 1–16.
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Copyright (c) 2019 Vesna Nikolic, Željko Kamberović, Milisav Ranitović, Milorad Gavrilovski, Zoran AnÄ‘ić
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