Plasma-metal oxides coupling for CH4-CO2 transformation into syngas and/or hydrocarbons, oxygenates
نویسندگان
چکیده
Dry reforming of methane was investigated by non-thermal plasma coupled with different metal oxides: BaO, La2O3, ZnO, CaO, α-Al2O3, MgO, γ-Al2O3, TiO2 and CeO2. The deposited power fixed at 8 W the total gas flow 40 mL.min−1 (75 % helium as diluent). Electrical characterization showed that CO2 CH4 conversions were enhanced (from 5.6 to 30.6 for from 1.9 16.1 CO2) when permittivity reduced 2903 4.1, respectively. Methanol selectivities favored oxides presenting low permittivities, indicating reaction is under a electric field, thus density reactive species. effect temperature evaluated on MgO catalyst. increase conversion, while reducing methanol selectivity. oxide TGA revealed re-hydroxylation temperature, which correlated improved oxygenated compounds selectivities.
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ژورنال
عنوان ژورنال: Catalysis Today
سال: 2021
ISSN: ['0920-5861', '1873-4308']
DOI: https://doi.org/10.1016/j.cattod.2020.06.058