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Citation: LI Ming-Wei, LIU Chang-Jun, XU Gen-Hui. Conversion of Methane and Carbon Dioxide to Syngas in Cold Plasma[J]. Chinese Journal of Applied Chemistry, ;2000, 17(6): 593-597. shu

Conversion of Methane and Carbon Dioxide to Syngas in Cold Plasma

1.
State Key Laboratory for Ca Chemical Technology, Tianjin University, Tianjin 300072

Received Date: 10 March 2000
Available Online: 12 June 2000
Fund Project: 国家自然科学基金(29776037) (29776037)

An experimental investigation on syngas preparation from CH₄ and CO₂ at ambient temperature and pressure in corona plasma has been performed. The conversions of CH₄ and CO₂ were found to be dependent on the energy density(input energy per mole feed), ratio of CH₄ to CO₂ in feed and flow rate of feed gases. For n(CH₄)/n(CO₂)=1/2 at 0.1 MPa and energy density of 1050 kJ/mol(in which temperature was lower than 500 K) the conversions of CH₄ and CO₂ were more than 60% and 50%, respectively. These experimental values exceed the calculated values based on chemical equilibrium theory. The ratio of H₂ to CO in products increased with the increasing of ratio of CH₄ to CO₂ in feed gases. A radical reacti on mechanism was suggested.
- syngas,
- cold plasma,
- corona discharge,
- methane,
- carbon dioxide
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