An active Ni–Co/MgAl₂O₄ catalyst was investigated for CO₂ reforming of coke oven gas (COG). The xNi–(10-x)Co/MgAl₂O₄ (x = 10, 7.5, 5.0, 2.5, 0) catalysts were prepared by impregnation method and characterized by BET, XRD, CO₂-TPD, H₂-TPH, TEM and TG. The CH₄ and CO₂ conversions of 70.36% and 86.46% respectively, as well as the H₂ and CO selectivities of 76.16% and 86.28% respectively, were achieved over 2.5Ni–7.5Co/MgAl₂O₄ catalyst. It was found that the bimetallic catalysts exhibited higher activity towards CO₂ reforming and deposited less coke, suggesting a larger numbers of active sites comparing to mono-metal catalysts. The results showed that conversion increased with Ni content at first and decreased as Ni content continued to increase. Thus the 2.5Ni–7.5Co/MgAl₂O₄, which is with high activity and low carbon deposition due to the strong synergistic effect between Ni and Co with the formation of Ni–Co solid solution, is a promising catalyst for hydrogen production in future fuel industries.

研究了活性Ni-Co / MgAl ₂ O ₄催化剂用于焦炉煤气（COG）的CO ₂重整。的X Ni基（10-X）的Co /镁铝₂ ø ₄（X  =  10，7.5，5.0，2.5，0）通过浸渍方法制备和表征通过BET催化剂，XRD，CO ₂ -TPD，H ₂ -TPH ，TEM和TG。在2.5 Ni– 7.5 Co / MgAl上，分别达到70.36％和86.46％的CH ₄和CO ₂转化率以及76.16％和86.28％的H ₂和CO选择性。₂ O ₄催化剂。发现双金属催化剂对CO ₂重整表现出较高的活性并且沉积较少的焦炭，这表明与单金属催化剂相比，活性部位的数量更大。结果表明，转化率最初随Ni含量的增加而增加，但随着Ni含量的持续增加而降低。因此，2.5 Ni– 7.5 Co / MgAl ₂ O ₄具有很高的活性，并且由于Ni和Co在形成Ni–Co固溶体之间具有很强的协同作用而具有低碳沉积，是一种有前途的制氢催化剂。未来的燃料产业。