The equilibrated values for pressure and mole fraction of CO 2 measured after the individual destabilization steps are visualized in Fig. alongside theoretical predictions and detailed in Table . There are three conceivable mechanisms for CO 2 separation in our system: liquefaction, adsorption, and hydrate formation. A comparison between the V-I-H equilibrium values for the mixed-hydrate and the liquefaction line for the N 2 -CO 2 mixture (cf. Fig. in ESI †) clearly rules out the possibility of misinterpreting liquefaction for hydrate formation; the two equilibria are simply too far apart at all temperatures and gas compositions considered in this work. This divergence already displays the advantage of the HBCC process with respect to cryogenic carbon capture which requires significantly larger pressures to attain similar reductions in mole fraction of CO 2 . Yet, at high pressures and mole fractions of CO 2 the stability regions for the liquid and the hydrate do overlap. This potentially allows for a combination of the cryogenic and hydrate-based capture process and offers an additional pathway for improving efficiency and performance. Adsorption, on the other hand, can take place at all conditions for which hydrate growth can occur. Hence, a misinterpretation is possible. However, because adsorption and hydrate formation exhibit distinctly different dynamics and capacities for CO 2 uptake, these two effects are successfully distinguished in our experiments and the data in Fig. is clearly associated with hydrate formation.