In the following, key results for the hydrate-based capture and regeneration of CO 2 in a packed bed of solidified dry water are provided. These cover the fundamental aspects of thermodynamic equilibrium and kinetics as well as factors crucial for the industrial application, e.g., the performance stability with respect to consecutive cycling. Eventually, a benchmark run is used to substantiate the KPIs of the process, thus, enabling a sound comparison with the state of the art.