This paper reports the production of syngas from two types of O₂-assisted dry reforming of propane, namely oxidative (O₂-dosed) dry reforming (ODR) and dry (CO₂-dosed) partial oxidation (DPOX). Reaction runs were conducted over alumina-supported bimetallic Co–Ni promoted with CeO₂ at 120 kPa and 793–893 K. Ceria promotion improved the carbon deposition resilience of the Co–Ni catalyst. Physicochemical attributes were obtained from liquid N₂ adsorption, H₂ chemisorption and temperature-programmed desorption runs for NH₃, CO₂, CH₄ and C₃H₈. Rate behavior under ODR, DPOX and pure dry reforming could be described consistently with empirical models that are structurally similar to Langmuir–Hinshelwood type relations. Inferences from these models allowed the postulation of the same overall reaction network for the three types of reactions albeit with variation in rate-controlling steps depending on the different product species. On the whole, DPOX seemed to be a superior option for the manufacturing of syngas for downstream olefin FT production due to reduced variability in the H₂:CO ratio and the closeness to unity (0.72–0.95) of the exiting syngas over the range of O₂ partial pressure used.

中文翻译：

---

Ce助Co-Ni / Al 2 O 3催化剂上丙烷的氧干重整

本文报道了由O ₂辅助的丙烷干重整的两种类型生产合成气，即氧化（O ₂剂量）干重整（ODR）和干（CO ₂剂量）部分氧化（DPOX）。反应运行在120kPa和793-893 K的氧化铝上负载的CeO ₂促进的双金属Co-Ni进行。二氧化铈的促进提高了Co-Ni催化剂的碳沉积弹性。从液体N ₂吸附，H ₂化学吸附和程序升温对NH ₃，CO ₂，CH ₄和C ₃ H _8的解吸过程获得理化属性。在ODR，DPOX和纯干重整下的速率行为可以用与Langmuir-Hinshelwood类型关系结构相似的经验模型一致地描述。这些模型的推论允许为三种类型的反应假定相同的整体反应网络，尽管根据不同的产品种类，速率控制步骤有所不同。总体而言，DPOX似乎是生产下游烯烃FT合成气的上乘选择，因为H ₂：CO比的可变性降低了，并且在以下温度范围内，现有合成气的接近统一性（0.72-0.95）。使用O ₂分压。