Influence of reaction temperature on ICCU-RWGS using Ni/CaO DFMs

“The performances of ICCU-RWGS were also significantly affected by the reaction temperature. For example, 87.4% and 25.6% of CO₂ conversions were obtained over Ni/CeO₂-CaO at 550 °C and 750 °C, respectively (as shown in the following figure). As an endothermic reaction, RWGS favors a higher reaction temperature which is consistent with the decomposition of CaCO₃. However, the fast decomposition of CaCO₃ could increase the CO₂ concentration near the catalytic sites resulting in a decrease in CO₂ conversion.”

(https://doi.org/10.1016/j.seppur.2022.121604)

“Integrated CO₂ capture and RWGS performance of various Ni/support-CaO BCMs: (a) CO₂ conversion; (b) CO selectivity; (c) CO yield and (d) C1 species (CO₂ + CO + CH₄) yield.” https://doi.org/10.1016/j.seppur.2022.121604