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Catalytic Oxidation of Volatile Organic Compounds Using the Core–Shell Fe 2 O 3 -Cenospheric Catalyst in a Fluidised Bed Reactor

Author

Listed:
  • Przemysław Migas

    (Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland)

  • Witold Żukowski

    (Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland)

  • Dariusz Bradło

    (Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland)

Abstract

The results of selected volatile organic compounds (benzene, n-hexane, isopropanol, and formic acid) catalytic oxidation are presented on Fe 2 O 3 cenospheres in the fluidised bed reactor. The core–shell Fe 2 O 3 -cenosphere catalyst was developed by applying an Fe layer on cenospheres by FB-MO-CVD (fluidised bed, metal–organic chemical vapor deposition) and following Fe layer oxidation. The efficiency of the decomposition of VOCs was tested in the range of 200 to 500 °C, using the method based on infrared spectroscopy (FTIR). The research was focused especially on the analysis of incomplete combustion products, such as CO and oxygen compounds. During the oxidation of isopropanol and n-hexane, in addition to carbon monoxide, species such as acetone, formaldehyde, and acetaldehyde were also detected. The oxidation of formic acid proceeded with only a slight emission of carbon monoxide, unexpectedly the oxidation of benzene proceeded in a similar way, and no other products of the incomplete oxidation were detected. In addition, the CO concentration was lower than in the case of conversion of isopropanol and n-hexane. For the presented solution, complete formic acid oxidation is possible at temperatures below 400 °C, and almost complete oxidation to CO 2 of isopropyl alcohol, benzene, and n-hexane was achieved at 500 °C. Additionally, the possibility of conducting the autothermal process of oxidation of VOCs in a fluidised bed, provided that heat recuperation is used, was presented.

Suggested Citation

  • Przemysław Migas & Witold Żukowski & Dariusz Bradło, 2023. "Catalytic Oxidation of Volatile Organic Compounds Using the Core–Shell Fe 2 O 3 -Cenospheric Catalyst in a Fluidised Bed Reactor," Energies, MDPI, vol. 16(6), pages 1-13, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:6:p:2801-:d:1100357
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    References listed on IDEAS

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    1. Margaux Lhuissier & Annabelle Couvert & Patrick Dabert & Abdeltif Amrane & Abdoulaye Kane & Jean-Luc Audic & Eric Dumont, 2022. "Removal of a Mixture of Seven Volatile Organic Compounds (VOCs) Using an Industrial Pilot-Scale Process Combining Absorption in Silicone Oil and Biological Regeneration in a Two-Phase Partitioning Bio," Energies, MDPI, vol. 15(13), pages 1-16, June.
    2. Francesco Miccio & Federica Raganati & Paola Ammendola & Farouk Okasha & Michele Miccio, 2021. "Fluidized Bed Combustion and Gasification of Fossil and Renewable Slurry Fuels," Energies, MDPI, vol. 14(22), pages 1-16, November.
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