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Kinetics of $CO_2$ decomposition over CuO-Magnetite and ZnO-Magnetite catalysts

CuO-Magnetite 및 ZnO-Magnetite 촉매상에서 $CO_2$ 분해반응속도론

  • Yang, Chun-Mo (Dept. of Chemical Engineering, Hong-Ik University) ;
  • Rim, Byung-O (Dept. of Chemical Engineering, Hong-Ik University)
  • 양천모 (홍익대학교 공과대학 화학공학과) ;
  • 임병오 (홍익대학교 공과대학 화학공학과)
  • Published : 1998.12.31

Abstract

$Cu_xFe_{3-x}O_4$ catalyst and $Zn_xFe_{3-x}O_4$ catalyst were synthesized by the air oxidation method with various C(II) and Zn(II) weights. Activated catalysts decomposed carbon dioxide to carbon at $350^{\circ}C$, $380^{\circ}C$, $410^{\circ}C$ and $440^{\circ}C$. The value of carbon dioxide decomposition rate for $Cu_{0.003}Fe_{2.997}O_4$ and $Zn_{0.003}Fe_{2.997}O_4$ catslysts than was better catalysts. The decomposed rate of the catalysts is about 85%${\sim}$90%. The reaction rate constant(4.00 $psi^{1-{\alpha}}/min$) and activation energy(2.62 kcal/mole) of $Cu_{0.003}Fe_{2.997}O_4$ catalyst are better than $Zn_{0.003}Fe_{2.997}O_4$

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