Abstract: A system for producing a product is disclosed. The system includes a production facility for producing a product using a chemical process involving chemical reactions, and an information processing device comprising a computer processor that simulates, using a hybrid model, the chemical reactions in the chemical process that produces the product to obtain a predicted output, wherein the hybrid model is a combination of a first-principles model and a data-driven model, determines, using an observer model, expected concentrations and levels of all substrates for the simulated process, sets derived optimal conditions for the chemical process based on the estimated concentrations and levels of all substrates, and predicts future production results based on a current status of the production facility.