Modeling and design of a non-thermal plasma reactor for CO2 dissociation

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2017-1
Ahmed, Humayun
The requirement of energy constantly increases with time, and one of the major sources of energy is fossil fuels which release carbon dioxide upon combustion. Environmentally, CO2 is a greenhouse gas which has had a tremendous impact on the Earth’s climate over the last few decades and the urges serious mitigation methods for the long-term sustainability of the Earth’s climate and ecosystem. One mitigation method is the dissociation of CO2 to produce synthesis gas which can be used to produce alternative hydrocarbon fuels. There have been studies investigating the use of plasma reactors for synthesis gas production but experimentation has proven to be resource and time consuming. Hence, this study focuses on modeling the dissociation of carbon dioxide in non-thermal plasma reactors via a one-dimensional fluid approximation and a zerodimensional kinetics analysis. A sensitivity analysis on the results is conducted by using different collision cross-section data for the electron impact dissociation of CO2. The results show the spatial distribution of electrons depends upon electron attachment, ionization and electronic excitation of CO2 primarily, and addition of carrier gases such as Argon and Xenon and their effects on the shape of distribution.

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Citation Formats
H. Ahmed, “Modeling and design of a non-thermal plasma reactor for CO2 dissociation,” M.S. - Master of Science, Middle East Technical University, 2017.