steel industry, known for its significant global impact on CO2 emissions, demands continuous efforts towards sustainable and efficient practices. Process simulation has emerged as an essential tool in optimizing steel production, providing insights into complex unit operations. Traditionally, static models have been employed to expedite simulations, leveraging computational efficiency. However, recent advancements in computer capabilities have made the utilization of rigorous dynamic models both practical and feasible. In the pursuit of enhancing process simulation, my research focused on the Blast Oxygen Furnace (BOF) unit operation. During my master thesis I successfully constructed and implemented a dynamic BOF model using gPROMS®, an advanced process simulation software by Siemens AG. This model was integrated into an existing static calculating model library, paving the way for a more comprehensive understanding of the dynamic aspects of the steel production process. My simulation results for the BOF model demonstrate its versatility in simulating different converter sizes and operational procedures. The model accurately reproduces refining reactions of carbon, silicon, manganese, and phosphorus, showcasing excellent agreement with measured data. Furthermore, the dynamic BOF model captures physiochemical phenomena, including melting behavior and dissolution, along with ballistic droplet movement. The focus of my ongoing doctoral research, is to further dive into the development of dynamic unit operations. My first mission: development and implementation of a sinter strand model. This model aims to depict the most influential reactions, including homogeneous gas-gas reactions and heterogeneous solid-gas reactions. By extending the capabilities of process simulation to encompass complex dynamic phenomena, this research contributes to the evolving landscape of steel production optimization. For the 5th Scientific Workshop (FemChem) I would like to present: • The impact of process simulation on sustainability and process optimization • BOF: o The advancements accomplished in BOF modelling o Simulated phenomena and results • The sinter strand model and its current capabilities as well as future plans