First, the thermodynamic potential of SEAS is analyzed by applying the equilibrium model for simultaneous NH3 synthesis and sorption. Figure shows the gas phase composition, H2 conversion and sorbent loading for different sorbent ratios and temperatures at a total pressure of 10 bar. The conventional NH3 synthesis equilibrium gas phase composition and H2 conversion is shown in Figure (a) (𝜆 = 0, no sorbent). Due to Le Chatelier's Principle , the equilibrium is on the product side at low temperatures and thus results in a decrease in conversion with increasing temperature. Overall, the conventional NH3 synthesis equilibrium shows the well-known low conversion, with values of less than 10 % at temperatures over 400 °C. The gas phase molar fraction of the dilution gas Helium can be interpreted as a measure of the molar amount of the gas phase: At high conversion, the total molar amount decreases, inducing a higher molar fraction of He, whose molar amount is constant. In this region, one can infer from the He molar fraction that almost the entire gas phase vanishes, as most of the reactants are converted to NH3, which, in turn, is largely being absorbed. Since higher temperatures are unfavorable for both the NH3 synthesis and absorption, both the sorbent loading and the H2 conversion decrease and only a small NH3 molar fraction in the gas phase remains. Towards the right of the graph, the difference to the conventional equilibrium thus fades.