Dissociation of Carbon Dioxide Using a Microdischarge Plasma Reactor

Date

2014-04-02

Author

Taylan, Onur
Berberoglu, Halil

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This paper reports an experimental study on dissociation of carbon dioxide using a microdischarge plasma reactor at ambient conditions. Carbon dioxide contributes to more than 80% of the greenhouse gas emissions in United States. The microdischarge plasmas can be a very promising method in dissociating gases, including carbon dioxide, due to their lack of need for catalysts, operating at temperatures lower than conventional thermochemical dissociation processes and ease of operation. A microhollow cathode discharge plasma reactor was designed and prototyped for CO2 dissociation. The reactor included metal electrodes that were attached to both sides of a dielectric material with a micro-size through hole. The electrodes and the dielectric material were placed perpendicular to flow direction for dissociation to occur as carbon dioxide passed through the hole. A set of experiments were conducted to investigate the effect of flow rate and applied voltage on the composition of the products, energy conversion efficiency and CO2-to-CO conversion yield of the microdischarge plasma reactor. Temperature of reactants and products were continuously measured; applied voltage was set using a high-voltage power supply; and molar composition of products for each case was analyzed using gas chromatography. Results showed that CO2 dissociation rate, energy conversion efficiency and CO2-to-CO conversion yield increased with applied voltage. Moreover, CO2 dissociation rate and conversion yield decreased while energy conversion efficiency increased with increasing flow rate.

URI

http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?doi=10.1115/IMECE2013-64632
https://hdl.handle.net/11511/89355

DOI

https://doi.org/10.1115/imece2013-64632

Conference Name

Volume 6A: Energy

Collections

Department of Mechanical Engineering, Conference / Seminar

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Citation Formats

O. Taylan and H. Berberoglu, “Dissociation of Carbon Dioxide Using a Microdischarge Plasma Reactor,” presented at the Volume 6A: Energy, San Diego, California, Amerika Birleşik Devletleri, 2014, Accessed: 00, 2021. [Online]. Available: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?doi=10.1115/IMECE2013-64632.