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Investigation of K/Mn-Based Supported Catalysts for Gas-PHase Deep Oxfidation of Cyclohexane

Kamal, Md Sarwar
http://orcid.org/0009-0009-1215-377X
http://rave.ohiolink.edu/etdc/view?acc_num=miami1721078864953998

Abstract Details

2024, Master of Science, Miami University, Chemical, Paper and Biomedical Engineering.
Cyclohexane is used in the production of consumer products and fuels and as a solvent. Based upon its industrial relevance, cyclohexane was selected as a representative volatile organic compound (VOC) with which to investigate the role of metal oxide supports in potassium/manganese (K/Mn) – based catalysts. Mn-based catalysts are effective catalysts due to their several oxidation states, mobility of oxygen vacancies, and redox properties. Cryptomelane, a K/Mn-based catalyst material, has been shown by others to be an effective VOC oxidation catalyst. In this study, K/Mn-based catalysts supported on various metal oxide materials were investigated for cyclohexane deep oxidation. The short-term activity of K/Mn on supports followed the trend: Fe3O4 > MnO2 > Al2O3 > TiO2 > SiO2. The performance of Fe3O4-supported and MnO2-supported catalysts with varying K/Mn and Mn loadings were investigated further. The catalysts were characterized for surface area, pore size, morphology, crystallinity, and crystal structure. At 350°C, the catalysts with the lowest loading of 0.63 mmoles K/Mn/g Fe3O4 exhibited the best short-term catalytic activity in the deep oxidation of cyclohexane, while 0.63 mmoles K/Mn/g MnO2 performed best over 95 hours. FTIR spectroscopy was used to assess partial oxidation product build-up on used catalysts.
Dr. Catherine Almquist (Advisor)
60 p.
Chemical Engineering
Volatile Organic Compounds (VOCs), Cyclohexane, Gas-phase catalytic oxidation, VOCs elimination, Manganese Loadings, Effect of support, Effect of K addition, K/Mn-based supported catalyst.

Recommended Citations

Citations

  • Kamal, M. S. (2024). Investigation of K/Mn-Based Supported Catalysts for Gas-PHase Deep Oxfidation of Cyclohexane [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1721078864953998

    APA Style (7th edition)

  • Kamal, Md Sarwar. Investigation of K/Mn-Based Supported Catalysts for Gas-PHase Deep Oxfidation of Cyclohexane. 2024. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1721078864953998.

    MLA Style (8th edition)

  • Kamal, Md Sarwar. "Investigation of K/Mn-Based Supported Catalysts for Gas-PHase Deep Oxfidation of Cyclohexane." Master's thesis, Miami University, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=miami1721078864953998

    Chicago Manual of Style (17th edition)

miami1721078864953998
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© 2024, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.