4. Conclusion
In this paper, CO2 reforming of CH4 to syngas by binode thermal plasma is studied in three operation modes. The
optimal results of the specific energy of 193 kJ/mol and the energy conversion efficiency of 66% are achieved under the
conditions of CH4/CO2 of 4/6, input power at 14.4 kW, 500 g Ni/Al2O3 catalyst, Ar of 1.9 m3/h from inlet I, N2 of 1 m3/h and feed gases of 1.5 m3/h from inlet II, and feed gases of 3.5 m3/h from inlet III, which benefits from the three different reaction courses:
1) The cracking reaction of the feed gases introduced from inlet II by the impact of energetic particles in plasma
discharge region;
2) The thermochemical reaction of the feed gases introduced from inlet III in the high temperature plasma jet out of the
discharge region;
3) The catalytic reaction of the unconverted feed gases from 1) and 2) on the commercial Z107 Ni/Al2O3 catalysts.
4. ConclusionIn this paper, CO2 reforming of CH4 to syngas by binode thermal plasma is studied in three operation modes. Theoptimal results of the specific energy of 193 kJ/mol and the energy conversion efficiency of 66% are achieved under theconditions of CH4/CO2 of 4/6, input power at 14.4 kW, 500 g Ni/Al2O3 catalyst, Ar of 1.9 m3/h from inlet I, N2 of 1 m3/h and feed gases of 1.5 m3/h from inlet II, and feed gases of 3.5 m3/h from inlet III, which benefits from the three different reaction courses:1) The cracking reaction of the feed gases introduced from inlet II by the impact of energetic particles in plasmadischarge region;2) The thermochemical reaction of the feed gases introduced from inlet III in the high temperature plasma jet out of thedischarge region;3) The catalytic reaction of the unconverted feed gases from 1) and 2) on the commercial Z107 Ni/Al2O3 catalysts.
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