To check the simulation results qualitatively, the start-up scenarios described in the simulation study in Section 2.3.1 are tested in several experimental start-up processes. Apart from the already mentioned differences between simulation setup and pilot mDWC (Section 2.2), another difference exists. As the product draws D, S1, and S2 are realized as periodically switching valves or shaking funnels, respectively, these valves and funnels can be activated independent of whether there is any liquid stream at the respective product draws or liquid splits. Therefore, in contrast to the simulation model, it is not required to check, if the reflux stream is sufficiently large during the start-up process. Although there are differences between simulation and experiment, these ultimately only concern technical details of the implementation and do not compromise the qualitative findings of the simulation.