Steam cracking has been at the core of petrochemical industries for decades. This highly energy-intensive and high-temperature process allows the conversion of naphtha or natural gas liquids into basic blocks (including ethylene and propylene). The latter are afterwards processed to deliver not only daily life products, such as food packaging and medical devices, but also components for renewable energy systems, ranging for instance from polymers in wind turbines to solar panels and batteries of cars. However, steam cracking requires a large amount of energy to heat up tube-shaped reactors, and this is typically obtained through the combustion of fossil fuels. Rotor stator reactors show great promise in this regard, as they can generate heat for the cracking reactions by direct mechanical energy transfer using sustainable electric motors. Their development has however been lagging behind. The goal of this project is therefore to develop a novel concept of rotor stator reactor, which will mark a significant step forward the decarbonization of the petrochemical industry. At the basis of this innovative technology there is the implementation of both high-fidelity CFD and endothermic models in the optimization loops. As a consequence of its flexible design, in which each axial module is composed of three blade rows and a reaction chamber, the system has the potential to improve the energy transfer and enhance the quality of the overall cracking and heating processes.