). For all reaction conditions applied the measurement indicates that a negligible share of less than 10 % of the total sorbed NH3 is sorbed on the AC support. This observation is in good aligns well with the work of Hong et al. who prepared a MgCl2/AC sorbent and reported a similar share of NH3 sorption on AC. Thus, this finding indicates that the capacity of the support AC can be seen as negligible for this study. Perspectively, the occurrence of various simultaneous sorption mechanisms would need to be included into detailed models for the sorption of NH3 onto impregnated AC. Figure shows the measured sorption capacity 𝑞 for three repetitive cycles conducted at four different temperature levels and at a total pressure of 80 bar, applying sorbent and catalyst as shown in bed configuration c). The sorption capacity for the first cycle is higher, while for the second and third cycle nearly the same capacity is measured. Since in between the cycles, the sorbent is regenerated by flushing with H2 at constant temperature and pressure, the second and third cycle represent the reversible sorbent capacity for this regeneration procedure.