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应用等温和非等温热重分析法研究了 Co3O4的氢还原过程动力学,得出两种条件下过程均分为 Co3O4还原为 CoO和 CoO还原为 CO两个步骤, 二步骤均为界面化学反应控速在 523─603 K等温及 503─589 K非等温条件下, Co3O4还原为 CoO步骤的表观活化能均为 133 kJ/mol; 523—603 K等温还原 CoO为 Co步骤的表观活化能为 87.5 kJ/mol.
The isothermal non-isothermal thermogravimetric analysis was used to study the kinetics of hydrogen reduction of Co3O4. The results show that the two processes are divided into two steps: reduction of Co3O4 to CoO and reduction of CoO to CO. The two steps are interface chemical reaction The apparent activation energy of Co3O4 reduced to CoO was 133 kJ / mol under the isothermal temperature of 523- 603 K and non-isothermal of 503- 589 K. The apparent activation energy 87.5 kJ / mol.