The dry reforming of methane with CO₂ is a common route to transform CO₂/CH₄ mixtures into added value syngas. Ni based catalysts are highly active for this goal but suffer from deactivation, as such promoters need to be introduced to counteract this, and improve performance. In this study, mono- and bi-metallic formulations based on 10 wt.% Ni/CeO₂-Al₂O₃ are explored and compared to a reference 10 wt.% Ni/γ-Al₂O₃. The effect of Sn and Pt as promoters of Ni/CeO₂-Al₂O₃ was also investigated. The formulation promoted with Sn looked especially promising, showing CO₂ conversions stabilising at 65% after highs of 95%. Its increased performance is attributed to the additional dispersion Sn promotion causes. Changes in the reaction conditions (space velocity and temperature) cement this idea, with the Ni-Sn/CeAl material performing superiorly to the mono-metallic material, showing less deactivation. However, in the long run it is noted that the mono-metallic Ni/CeAl performs better. As such the application is key when deciding which catalyst to employ in the dry reforming process.

用CO ₂进行甲烷的干重整是将CO ₂ / CH ₄混合物转化为增值合成气的常用途径。镍基催化剂对于该目标是高度活性的，但是会失活，因为需要引入这类促进剂来抵消这种情况并提高性能。在这项研究中，单-和基于10重量％的Ni /的CeO双金属配制剂₂ -Al ₂ ö ₃进行了探索和与参考10重量％的Ni /γ-Al系₂ ö ₃。Sn和Pt作为Ni / CeO ₂ -Al ₂ O ₃促进剂的作用还进行了调查。用Sn促进的配方看起来特别有前途，在达到95％的高位后，显示出CO ₂转化率稳定在65％。其提高的性能归因于附加的锡促进扩散原因。反应条件（空速和温度）的变化巩固了这一想法，Ni-Sn / CeAl材料的性能优于单金属材料，表现出较少的失活。但是，从长远来看，应注意单金属Ni / CeAl的性能更好。因此，在决定在干重整过程中使用哪种催化剂时，应用是关键。