Application of Ni–Al-hydrotalcite-derived catalyst modified with Fe or Mg in CO2 methanation
Tóm tắt
In this work, Ni–Al-hydrotalcite-derived catalyst modified with Fe or Mg for CO2 methanation was investigated in an attempt to improve the reaction activity at low temperature. Through the characterization of XRD, H2-TPR, and N2-BET, 0.05Fe–Ni–Al2O3-HT catalyst can be found with a better reducing property, higher surface area, better Ni dispersion, and smaller pore size. The CO2 conversion using this catalyst was tested in a fixed-bed reactor in laboratory. The result showed better reaction activity at low temperature. At 219 °C, the CO2 conversion could reach 80.8 %. Meanwhile, the highest CO2 conversion of 96.0 % was achieved at 350 °C.
Tài liệu tham khảo
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