Chemical Process Design and Simulation | Sanli Tech Solutions

The company integrates chemical process design and simulation to deliver robust, validated solutions from the earliest design phases. Using state-of-the-art simulation tools (ANSYS Chemkin for reactive systems, COMSOL Multiphysics for multiphase flows), processes are modeled at multiple scales, from molecular dynamics (for catalyst design) to full-plant flowsheets. In a recent project, a fluid catalytic cracking (FCC) unit was simulated to optimize riser reactor conditions (temperature 500 - 550°C, catalyst-to-oil ratio 6 - 10), predicting product yields (gasoline 45 - 50%, LPG 10 - 15%) with < 3% error compared to plant data. Dynamic simulation (using Dymola) is performed to evaluate process controllability, such as designing feedforward control systems to reject disturbances in a polymerization reactor (temperature control within ±2°C). Virtual commissioning using process simulators reduces onsite startup time by 20 - 30%, identifying and resolving operational issues in a virtual environment before physical implementation.