In this study, the catalytic performance of the CeO₂ promoted Ni-MgO-Al₂O₃ catalysts with different preparation methods was studied in carbon dioxide reforming of methane (CDRM) for the production of synthesis gas. The nitrogen adsorption/desorption (BET), X-ray diffraction (XRD), temperature-programmed reduction and oxidation (TPR and TPO), scanning electron microscopy (SEM) techniques were used to characterize the samples. The obtained results showed that the Ce addition to Ni-MgO-Al₂O₃ catalyst with the high specific surface area has a significant influence on the metal crystallite size, reduction properties, and coke deposition. The CeO₂-Ni-MgO-Al₂O₃ catalyst with cerium content of 3 wt.% prepared by the impregnation method possessed the highest resistance against carbon formation in CDRM. In addition, the catalytic results confirmed that the feed ratio (CO₂/CH₄) and GHSV affected the catalytic activity. However, the CH₄ and CO₂ conversions improved when the cerium was added to Ni-MgO-Al₂O₃ catalysts.

在这项研究中，研究了CeO ₂促进的Ni-MgO-Al ₂ O ₃催化剂在不同的制备方法下对甲烷二氧化碳重整（CDRM）产生合成气的催化性能。使用氮吸附/解吸（BET），X射线衍射（XRD），程序升温还原和氧化（TPR和TPO），扫描电子显微镜（SEM）技术来表征样品。所得结果表明，Ce添加到具有高比表面积的Ni-MgO-Al ₂ O ₃催化剂中对金属微晶尺寸，还原性能和焦炭沉积具有显着影响。CeO ₂ -Ni-MgO-Al ₂ O通过浸渍法制得的铈含量为3重量％的₃催化剂在CDRM中具有最高的抗碳形成性。另外，催化结果证实进料比（CO ₂ / CH ₄）和GHSV影响催化活性。然而，当将铈添加到Ni-MgO-Al ₂ O ₃催化剂中时，CH ₄和CO ₂转化率提高。