For many years, process simulation experts were considered the Merlins in their companies, keeping the “secrets” of process simulation to a selected well-experienced few, because simulation results could be so easily misleading if the behavior of the articular simulator was not understood and not taken into consideration to interpret the results. While process simulation is still a challenge that needs to be studied and well-understood, modern world-class simulators have come to an amazing maturity and by now have also conquered the well-known difficulties like convergence and stability issues. As we seek competence for our trainees beyond a selected simulator, we will provide them with essential understanding for each unit operation and its implementation in simulating blocks. Adding knowledge about numerical methods and their peculiarities will further help circumventing difficulties in resolution, convergence and stability. Our training will include a conceptual design of an entire production plant, not just a few unit operations. The plant specifics will be selected as part of our custom-designed curriculum and stretch from chemical through bio-based processes to energy applications. The result will also be the design concept for further work in process and design.