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Decomposition of carbon dioxide in the RF plasma environment
Author(s) -
Hsieh LienTe,
Lee WenJhy,
Li ChunTeh,
Chen ChuhYung,
Wang YaFen,
Chang MooBeen
Publication year - 1998
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199812)73:4<432::aid-jctb972>3.0.co;2-0
Subject(s) - carbon dioxide , decomposition , methane , torr , plasma , volumetric flow rate , chemistry , analytical chemistry (journal) , fraction (chemistry) , carbon fibers , materials science , environmental chemistry , thermodynamics , chromatography , organic chemistry , physics , quantum mechanics , composite number , composite material
Application of radio‐frequency (RF) plasma as an alternative technology for the decomposition of carbon dioxide with methane gas is demonstrated. The results of this study revealed that in CO 2 /CH 4 /Ar plasma, the best decomposition fraction of carbon dioxide was 60·0%, which occurs around 316°C in the condition designed for 5% feeding concentration of CO 2 , 5% feeding concentration of CH 4 , 20 torr operation pressure, 100 sccm total gas flow rate and 90 watts input power wattage. The CH, CH 2 and CH 3 radicals obtained from the destruction of CH 4 could result effectively in high decomposition of CO 2 in the plasma reactor. The optimal mathematical models based on the experimental data obtained were also developed and tested by means of sensitivity analysis, which shows that the input power wattage (W) was the most sensitive parameter for the CO 2 decomposition. © 1998 Society of Chemical Industry