Publication
Title
$CO_{2}$ conversion in a dielectric barrier discharge plasma : $N_{2}$ in the mix as a helping hand or problematic impurity?
Author
Abstract
 Carbon dioxide conversion and utilization has gained significant interest over the years. A novel gas conversion technique with great potential in this area is plasma technology. A lot of research has already been performed, but mostly on pure gases. In reality, N-2 will always be an important impurity in effluent gases. Therefore, we performed an extensive combined experimental and computational study on the effect of N-2 in the range of 1-98% on CO2 splitting in dielectric barrier discharge (DBD) plasma. The presence of up to 50% N-2 in the mixture barely influences the effective (or overall) CO2 conversion and energy efficiency, because the N-2 metastable molecules enhance the absolute CO2 conversion, and this compensates for the lower CO2 fraction in the mixture. Higher N-2 fractions, however, cause a drop in the CO2 conversion and energy efficiency. Moreover, in the entire CO2/N-2 mixing ratio, several harmful compounds, i.e., N2O and NOx compounds, are produced in the range of several 100 ppm. The reaction pathways for the formation of these compounds are explained based on a kinetic analysis, which allows proposing solutions on how to prevent the formation of these harmful compounds.
Language
English
Source (journal)
Energy & environmental science. - -
Publication
2016
ISSN
1754-5692
1754-5706
Volume/pages
9:3(2016), p. 999-1011
ISI
000372243600030
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address
External links
 Web of Science
Record
 Identification Creation 10.05.2016 Last edited 03.10.2017 To cite this reference