Chemical looping oxidative dehydrogenation of propane (CL-ODHP) is a promising technology for propylene production and offers several advantages over traditional dedicated propylene production processes, particularly a low energy consumption and safety in operation, with their associated economic advantages. In this study, the technical feasibility of employing oxygen carriers based on Ga, Mo and V for CL-ODHP was investigated and compared. The oxygen carriers were prepared by incipient wet impregnation, and their physical and chemical properties, as well as their reactivity performance were determined. Because of the required high temperature during calcination, the morphological properties of Mo-based and V-based oxygen carriers differed from their Al₂O₃ support, whereas this was not the case for the Ga-based oxygen carrier. All three oxygen carriers show a stable performance during the redox cycle test, the V-based oxygen carrier showed a higher redox ability and oxygen transport capacity (1.78 wt.%) than the Mo- and Ga-based oxygen carriers (0.19 wt.% and 0.012 wt.% resp.). Among the studied oxygen carriers, the V-based oxygen carrier showed better performance in both the ODHP step and the regeneration step, with the highest propane conversion, propylene selectivity and re-oxidation, making the V-based oxygen carrier the most suitable for CL-ODHP.

丙烷的化学环氧化脱氢（CL-ODHP）是用于丙烯生产的一种有前途的技术，与传统的专用丙烯生产工艺相比，具有多种优势，特别是低能耗和操作安全性以及其相关的经济优势。在这项研究中，研究和比较了采用基于Ga，Mo和V的氧气载体制备CL-ODHP的技术可行性。通过初期湿式浸渍制备氧载体，并测定其物理和化学性质以及反应性。由于煅烧过程中需要高温，因此Mo基和V基氧载体的形态特性与Al ₂ O ₃有所不同载体，而基于Ga的氧气载体则并非如此。所有三种氧气载体在氧化还原循环测试中均表现出稳定的性能，基于V的氧气载体显示出比基于Mo和Ga的氧气载体（0.19 wt。％）更高的氧化还原能力和氧气传输能力（1.78 wt。％）和0.012重量％）。在所研究的氧气载体中，基于V的氧气载体在ODHP步骤和再生步骤中均表现出更好的性能，具有最高的丙烷转化率，丙烯选择性和再氧化能力，这使得基于V的氧气载体最适合用于CL -ODHP。