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Reaction Mechanisms Involved in Chemical Looping Combustion

Author
Eswar, Vikash
Published
[University Park, Pennsylvania] : Pennsylvania State University, 2021.
Physical Description
1 electronic document
Additional Creators
Yetter, Richard A., 1952- and Schreyer Honors College
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Open Access.
Summary
The release of harmful greenhouse gases (GHGs) into the atmosphere has continued to have a significant negative impact on the overall climate change of the world. In total, one-third of worldwide carbon dioxide emissions can be attributed to fossil fuel combustion. As a result, developing an efficient method of carbon dioxide capture via chemical looping combustion would prevent the release of carbon dioxide into the open atmosphere and instead allow us to sequester it in a safe location. To model the reduction phase of this CLC reaction, a mixture of carbon and copper oxide were prepared and then packed into a quartz tube positioned inside a tube furnace which provided an elevated initial temperature. Then, a 70W CO2 laser supplied the heat needed to initiate the combustion reaction which was recorded by a Phantom v7.3 camera. The main parameters that were studied in this project were the effects of the variation of CuO particle size and preheat temperature on the propagation speed and distance of the combustion reaction. It was found that the CuO nanoparticles performed much better than the CuO microparticles at an equivalence ratio of 1, in a fairly broad preheat temperature range of 350 °C to 400 °C, though some unusual propagation profiles were also noted in this range. As part of future study, it is advised that the CuO nanoparticles be used instead of the CuO microparticles, and new parameters be explored such as product composition and equivalence ratio in order to better optimize the experimental conditions for the reduction reaction.
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Dissertation Note
B.S. Pennsylvania State University 2021.
Technical Details
The full text of the dissertation is available as an Adobe Acrobat .pdf file ; Adobe Acrobat Reader required to view the file.
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