CO2 conversion in a microwave plasma reactor in the presence of N2: elucidating the role of vibrational levels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F15%3A43925958" target="_blank" >RIV/49777513:23520/15:43925958 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/acs.jpcc.5b01466" target="_blank" >http://dx.doi.org/10.1021/acs.jpcc.5b01466</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpcc.5b01466" target="_blank" >10.1021/acs.jpcc.5b01466</a>

Result language

angličtina

Original language name

CO2 conversion in a microwave plasma reactor in the presence of N2: elucidating the role of vibrational levels

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

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Volume of the periodical

119

Issue of the periodical within the volume

23

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

12815-12828

UT code for WoS article

000356317500005

EID of the result in the Scopus database

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