The CO₂ oxidative dehydrogenation of propane (CO₂-ODHP) reaction provides a platform to utilize carbon dioxide, a greenhouse gas and commonly available propane, in the production of value-added chemicals. A thermodynamic study of the process was achieved by simulation in the Aspen Plus software, using the method of minimization of Gibbs free energy. Sensitivity analysis was performed while varying the feed CO₂/C₃H₈ molar ratio. At higher CO₂/C₃H₈ molar ratios, lower temperatures are required to achieve higher propane conversions. The selectivity towards propylene production increased with lower CO₂/C₃H₈ ratios and higher temperatures. It was found that a feed with CO₂/C₃H₈ molar ratio of 1.0 was the optimum to obtain a syngas ratio (H₂/CO) of unity without compromising propylene product, at 850 °C and 1 bar. At higher CO₂/C₃H₈ molar ratios, selectivity towards CO is enhanced, thus results in lower syngas ratios (H₂/CO), whereas for a specific feed CO₂/C₃H₈ molar ratio higher temperatures favor selectivity to H₂, resulting in relatively higher syngas ratios.

丙烷的CO ₂氧化脱氢（CO ₂ -ODHP）反应提供了一个平台，可在生产增值化学品时利用二氧化碳，温室气体和常用的丙烷。使用最小化吉布斯自由能的方法，通过在Aspen Plus软件中进行仿真，可以对该过程进行热力学研究。在改变进料CO ₂ / C ₃ H ₈摩尔比的同时进行敏感性分析。在较高的CO ₂ / C ₃ H ₈摩尔比下，需要较低的温度以实现较高的丙烷转化率。较低的CO ₂ / C对丙烯生产的选择性增加₃ H ₈比率和更高的温度。发现在850℃和1巴下，具有CO ₂ / C ₃ H ₈摩尔比为1.0的进料对于获得单一的合成气比（H ₂ / CO）而不损害丙烯产物是最佳的。在较高的CO ₂ / C ₃ H ₈摩尔比下，提高了对CO的选择性，因此导致较低的合成气比（H ₂ / CO），而对于特定的进料CO ₂ / C ₃ H ₈摩尔比，较高的温度有利于选择H ₂，导致相对较高的合成气比率。