Title $CO_{2}$ conversion in a microwave plasma reactor in the presence of $N_{2}$ : elucidating the role of vibrational levels $CO_{2}$ conversion in a microwave plasma reactor in the presence of $N_{2}$ : elucidating the role of vibrational levels Author Heijkers, Stijn Snoeckx, Ramses Kozák, Tomáš Silva, Tiago Godfroid, Thomas Britun, Nikolay Snyders, Rony Bogaerts, Annemie Faculty/Department Faculty of Sciences. Chemistry Publication type article Publication 2015 Washington, D.C. , 2015 Subject Physics Chemistry Engineering sciences. Technology Source (journal) The journal of physical chemistry : C : nanomaterials and interfaces. - Washington, D.C., 2007, currens Volume/pages 119(2015) :23 , p. 12815-12828 ISSN 1932-7447 ISI 000356317500005 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract A chemical kinetics model is developed for a CO2/N2 microwave plasma, focusing especially on the vibrational levels of both CO2 and N2. The model is used to calculate the CO2 and N2 conversion as well as the energy efficiency of CO2 conversion for different power densities and for N2 fractions in the CO2/N2 gas mixture ranging from 0 to 90%. The calculation results are compared with measurements, and agreements within 23% and 33% are generally found for the CO2 conversion and N2 conversion, respectively. To explain the observed trends, the destruction and formation processes of both CO2 and N2 are analyzed, as well as the vibrational distribution functions of both CO2 and N2. The results indicate that N2 contributes in populating the lower asymmetric levels of CO2, leading to a higher absolute CO2 conversion upon increasing N2 fraction. However, the effective CO2 conversion drops because there is less CO2 initially present in the gas mixture; thus, the energy efficiency also drops with rising N2 fraction. Full text (open access) https://repository.uantwerpen.be/docman/irua/0cffea/0d047f99.pdf E-info https://repository.uantwerpen.be/docman/iruaauth/e38afe/3e910448.pdf http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000356317500005&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000356317500005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000356317500005&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle