A nickel–alumina catalyst, possessing strong metal-support interaction, showed significant CH₄ and CO₂ conversions at 600 °C and 750 °C for the dry reforming of methane (DRM). However, about 33% carbon-whiskers (at 600 °C) and less than 1% carbon (at 750 °C) was deposited after 4 h of DRM. Adding up to 7.5 V% O₂ during the partial oxidation of methane (POM), and during the oxidative dry reforming of methane (ODRM), increased the CH₄ conversion. At least 7.5% O₂ was required for “carbon-free” ODRM operation (carbon < 1%) even at a reaction temperature of 600 °C. Furthermore, the CH₄ conversion increased from 44 to 52% at 600 °C, and from 85 to 88% at 750 °C. A H₂/CO ratio of 0.82 (at 600 °C) and 0.72 (at 750 °C) was also achieved. Increasing the O₂ amount also decreased the net CO₂ conversion and both carbon-types in the spent catalyst. Unexpectedly, the fraction of metallic nickel sites decreased in the spent catalyst after ODRM though the conversions increased. Thus, syngas is produced with insignificant amounts of carbon at 600 °C and 750 °C by DRM using small amounts of oxygen.

具有强金属-载体相互作用的镍-氧化铝催化剂在 600 °C 和 750 °C 下显示出显着的 CH ₄和 CO ₂转化，用于甲烷干重整 (DRM)。然而，在 DRM 4 小时后沉积了约 33% 的碳晶须（在 600 °C 下）和不到 1% 的碳（在 750 °C 下）。在甲烷部分氧化 (POM) 和甲烷氧化干重整 (ODRM) 期间添加高达 7.5 V% O _{2 可}提高 CH ₄转化率。即使在 600 °C 的反应温度下，“无碳”ODRM 操作（碳 < 1%）也需要至少 7.5% 的 O ₂。此外，CH ₄转化率在 600 °C 时从 44% 增加到 52%，在 750 °C 时从 85% 增加到 88%。啊₂还实现了 0.82（在 600 °C 下）和 0.72（在 750 °C 下）的 /CO 比。增加 O ₂量也降低了净 CO ₂转化率和废催化剂中的两种碳类型。出乎意料的是，虽然转化率增加，但在 ODRM 后废催化剂中金属镍位点的比例下降。因此，在 600 °C 和 750 °C 下通过 DRM 使用少量氧气生产合成气，其碳含量微乎其微。