To compare with formation kinetics in semi-batch experiments, Fig. shows the initial phase of carbon capture in continuous pressure swing experiments performed using three different N 2 -CO 2 feed gas mixtures. All experiments are performed at 233 K using a formation pressure of 40 bar and a mass flow of 1.0 slm. In Fig. , the effect of varying mass flow rates is investigated in otherwise identical experiments for a single feed gas composition of 15 mol% CO 2 .