S.Fr. As apparent in Fig. (a), higher reactor pressure enhances the S.Fr. across the entire pressure range investigated. Additionally, S.Fr. benefits from a higher residence time, which can be achieved by reducing the mass flow rate (as illustrated in Fig. )) or by increasing the reactor dimensions. In the theoretical limit, these actions yield a S.Fr. of 100%. In practice, achieving higher values of S.Fr. typically results in a higher SEC. This trade-off between efficiency and energy use is a common challenge across all CC technologies, complicating direct comparisons with competing methods. This, again, necessitates evaluations on a case-by-case basis to accurately account for varying conditions and scenarios.