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Klosinski, Alan Thesis 2.pdf (2.65 MB)

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Modeling of Catalytic Decomposition of Methane Over Carbon Blacks and Plasma-Generated Carbon in CHEMKIN

Klosinski, Alan
http://rave.ohiolink.edu/etdc/view?acc_num=csu1715808529801018

Abstract Details

2024, Master of Science in Mechanical Engineering, Cleveland State University, Washkewicz College of Engineering.
Methods are being studied to help reduce the impacts of climate change, and an intermediate solution using hydrogen energy obtained from methane decomposition. This process has advantages over steam reforming of methane, which is the primary method of hydrogen production currently. It is important to model the decomposition to allow for easier use of the modeling software by others in the field looking to advance this technology. CHEMKIN is used for the modeling. The thermal decomposition is first modeled, using available reaction mechanisms and experimental data. The Appel reaction mechanism is found to have the preferred modeling capability and accessibility, but there is a significant error with hydrogen and acetylene yields which require improvement before it can be used for predicting large-scale decomposition. The mechanism is applied to a plasma reactor to test versatility, but the results are found to be inaccurate, indicating specific mechanisms will likely be required for plasma reactors. The modeling is then expanded to a more complex level, including carbon catalyst for catalytic decomposition. With no prior modeling process found for CHEMKIN, steps are taken to produce accurate modeling results compared to experimental data and modeling performed with proprietary code to ensure accuracy in the modeling process when using carbon black catalysts. Then, the process is expanded to a plasma-generated carbon to compare it to the carbon black catalysts. The results indicate that the modeling procedure is accurate and repeatable, which opens up an option for further research to be done with this software to push this process to larger scale. Additionally, by modeling extended decomposition runs, the plasma carbon is verified to outperform two of the carbon blacks, but the performance against BP2000 is inconclusive with available data, and it is deactivated more slowly but has a greater reduction in the percent reduction in hydrogen output from the initial conversion. Additionally, a mild relation is shown between the amount of catalyst produced and the deactivation of the catalyst for the carbon blacks investigated.
Maryam Younessi (Advisor)
Hanz Richter (Committee Member)
Michael Gallagher (Committee Member)
85 p.
Alternative Energy; Engineering; Mechanical Engineering; Sustainability

Recommended Citations

Citations

  • Klosinski, A. (2024). Modeling of Catalytic Decomposition of Methane Over Carbon Blacks and Plasma-Generated Carbon in CHEMKIN [Master's thesis, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1715808529801018

    APA Style (7th edition)

  • Klosinski, Alan. Modeling of Catalytic Decomposition of Methane Over Carbon Blacks and Plasma-Generated Carbon in CHEMKIN. 2024. Cleveland State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1715808529801018.

    MLA Style (8th edition)

  • Klosinski, Alan. "Modeling of Catalytic Decomposition of Methane Over Carbon Blacks and Plasma-Generated Carbon in CHEMKIN." Master's thesis, Cleveland State University, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=csu1715808529801018

    Chicago Manual of Style (17th edition)

csu1715808529801018
110
© 2024, all rights reserved.
This open access ETD is published by Cleveland State University and OhioLINK.