Figure shows 𝛿 , for the Fe and Ru catalyst as function of temperature. Due to the exothermic synthesis reaction, the increase of the temperature leads to increasing approach towards the equilibrium. This effect is expressed by the given ratio of the simulated partial pressure 𝑝 (𝑧 ) at the location of the sorption and the partial pressure in equilibrium 𝑝 , . A nearly exponential increase for the sorption-enhancement factor is observed approaching the value of 2 in equilibrium (𝑝 𝑝 , ~1).