The effect of reduction and reaction conditions on catalytic performance and surface reaction rate of Fischer–Tropsch synthesis over Co–Ni/Al₂O₃ catalyst was studied in a stainless steel fixed-bed micro-reactor. Experiments were done over a collection of different reduction and reaction conditions, including reduction temperature (250–450 °C), reduction time (2–10 h), reducing agent (H₂, CO and mixing of H₂ and CO), reaction temperature (150–240 °C), H₂/CO (1–4) and reaction pressure (1–5 bar). In particular, the modeling of the effect of reduction and reaction conditions on the CO consumption rate was studied by response surface methodology. The surface reaction rates are important in scale-up of a FT reactor, industrial design, and simulation. The accuracy of created models was proved by ANOVA and diagnostic plots. According to the obtained quadratic polynomial equations, the order of parameters influence on CO consumption rate response was argued. Regard to results obtained, the main effective reduction and reaction parameters on CO consumption rate were reducing agent and reaction pressure, respectively. Furthermore, the precursor and catalysts before and after the test were characterized by XRD and SEM.

在不锈钢固定床微反应器中研究了还原和反应条件对Co-Ni / Al ₂ O ₃催化剂上费托合成的催化性能和表面反应速率的影响。在一系列不同的还原和反应条件下进行了实验，包括还原温度（250–450°C），还原时间（2–10 h），还原剂（H ₂，CO以及H ₂和CO的混合），反应温度（150–240°C），H ₂/ CO（1-4）和反应压力（1-5 bar）。特别地，通过响应面方法研究了还原和反应条件对CO消耗率的影响的模型。表面反应速率对于FT反应器的规模放大，工业设计和仿真至关重要。通过ANOVA和诊断图证明了所创建模型的准确性。根据得到的二次多项式方程，提出了参数对CO消耗率响应的影响顺序。根据获得的结果，对CO消耗速率的主要有效还原和反应参数分别为还原剂和反应压力。此外，通过XRD和SEM对测试前后的前体和催化剂进行了表征。