The co-precipitated Co-Ni-Mn nano-catalysts were evaluated for carbon monoxide hydrogenation. The influence of Al₂O₃, SiO₂, Zeolite, Active carbon, MgO supports and then the effect of best chosen support loading on the catalytic behavior and structure of ternary Co-Ni-Mn nano-catalysts were studied. The Co-Ni-Mn/20 wt%SiO₂ sample has shown highest selectivity toward light olefins production. Furthermore the influence of process conditions was investigated. Evaluation tests were performed under process conditions of P = 1–10 bar, T = 523-623 K, and H₂/CO = 0.67–3. The Response Surface Methodology (RSM) method was used for modeling and optimization process and the best conditions for catalyst evaluation were determined (T = 598.16 K, P = 1 atm and H₂/CO = 2.19). Under these conditions the highest selectivity of light olefins, higher CO conversion % and lower selectivity toward methane were achieved. Catalysts characteristics were investigated using XRD, BET, TEM, TGA, DSC, SEM, XPS, and TPR techniques. © 2021 Society of Chemical Industry (SCI).

中文翻译：

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Co-Ni-Mn 纳米催化剂上轻烯烃生产的改进：RSM 建模和工艺优化

评估共沉淀的 Co-Ni-Mn 纳米催化剂的一氧化碳氢化。研究了Al ₂ O ₃、SiO ₂、沸石、活性炭、MgO载体的影响以及最佳载体负载量对Co-Ni-Mn三元纳米催化剂催化行为和结构的影响。Co-Ni-Mn/20 wt% SiO ₂样品显示出对轻质烯烃生产的最高选择性。此外，研究了工艺条件的影响。评估测试在 P = 1–10 bar、T = 523-623 K 和 H _{2 的}工艺条件下进行/CO = 0.67–3。响应面法 (RSM) 方法用于建模和优化过程，并确定了催化剂评价的最佳条件（T = 598.16 K，P = 1 atm 和 H ₂ /CO = 2.19）。在这些条件下，实现了轻质烯烃的最高选择性、更高的 CO 转化率和更低的甲烷选择性。使用 XRD、BET、TEM、TGA、DSC、SEM、XPS 和 TPR 技术研究了催化剂特性。© 2021 化学工业协会 (SCI)。