Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Room Temperature Catalytic Ozonation of Methyl Ethyl Ketone over Mesoporous MnOx/Al2O3 Catalysts

  • Received : 2021.05.12
  • Accepted : 2021.06.09
  • Published : 2021.08.10
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Abstract

Catalytic ozonation of methyl ethyl ketone (MEK) has been examined over mesoporous MnOx/Al2O3 (MA) catalysts developed by a solvent deficient method using two different manganese precursors including manganese chloride (C) and manganese sulfate (S) at room temperature. The maximum catalytic activities of MA with C (MEK removal efficiency and ozone decomposition of 98.4 and 93.7%, respectively) were higher than those of MA with S (MEK removal efficiency and ozone decomposition of 96 and 68%, respectively). Also the catalytic stability of MA with C was much higher than that of MA with S. The physico-chemical properties of catalysts are well correlated with the activity results, which confirmed that fine dispersion of MnOx species with high ratios of Mn3+/Mn4+ and more acid sites are attributed to the higher catalyst stability for the MA-C catalyst.

Keywords

Acknowledgement

This research was supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (NRF) funded by the Ministry of Science, ICT (2017M1A2A2086839).

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