Nanosecond-pulsed discharge plasma splitting of carbon dioxide

Moon Soo Bak; Seong Kyun Im; Mark Cappelli

doi:10.1109/TPS.2015.2408344

Nanosecond-pulsed discharge plasma splitting of carbon dioxide

Moon Soo Bak, Seong Kyun Im, Mark Cappelli

Research output: Contribution to journal › Article › peer-review

48 Citations (Scopus)

Abstract

This paper reports on the study of repetitive nanosecond-pulsed discharge splitting of carbon dioxide (CO₂) for the production of CO. Gas chromatography is used to analyze the composition of the reformed gas when CO₂ is exposed to high-voltage (15 kV) very short (10 ns) electrical discharges that deposit as much as 0.4 mJ of energy at a rate of 30 kHz. Conversion rate and energy efficiency are obtained while the discharge pressure is varied between 2.4 and 5.1 atm. At the tested conditions, the maximum conversion rate and energy efficiency are found to be 7.3% and 11.5%, respectively. The energy efficiency drops slightly with increased pressure because of the decreased electric field and electron energy per molecule. An energy balance analysis of a set of CO₂ plasma reactions reveals that the dominant dissociation pathway under these conditions passes through the excitation of CO₂ (10.5 eV) followed by autodissociation into CO and O, which are often in excited states.

Original language	English
Article number	7057653
Pages (from-to)	1002-1007
Number of pages	6
Journal	IEEE Transactions on Plasma Science
Volume	43
Issue number	4
DOIs	https://doi.org/10.1109/TPS.2015.2408344
Publication status	Published - 2015 Apr 1
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 1973-2012 IEEE.

Keywords

Plasma applications.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Condensed Matter Physics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TPS.2015.2408344

Cite this

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abstract = "This paper reports on the study of repetitive nanosecond-pulsed discharge splitting of carbon dioxide (CO2) for the production of CO. Gas chromatography is used to analyze the composition of the reformed gas when CO2 is exposed to high-voltage (15 kV) very short (10 ns) electrical discharges that deposit as much as 0.4 mJ of energy at a rate of 30 kHz. Conversion rate and energy efficiency are obtained while the discharge pressure is varied between 2.4 and 5.1 atm. At the tested conditions, the maximum conversion rate and energy efficiency are found to be 7.3% and 11.5%, respectively. The energy efficiency drops slightly with increased pressure because of the decreased electric field and electron energy per molecule. An energy balance analysis of a set of CO2 plasma reactions reveals that the dominant dissociation pathway under these conditions passes through the excitation of CO2 (10.5 eV) followed by autodissociation into CO and O, which are often in excited states.",

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Nanosecond-pulsed discharge plasma splitting of carbon dioxide

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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