Neural Network Process Simulation Surrogates
#1Neural network surrogate models — particularly physics-informed neural networks (PINNs) and graph neural networks trained on outputs from Aspen Plus, HYSYS, and CFD solvers — are replacing first-principles simulation for the majority of process design iterations. AspenTech's AI-powered Aspen Plus with machine learning extensions, Process Systems Enterprise's ML-integrated gPROMS, and academic/industrial surrogate modeling pipelines (e.g., from MIT's PSIG group, ExxonMobil's internal AI platforms) can generate flowsheet results in seconds that previously required hours of convergence-sensitive simulation. Companies including Shell, SABIC, and major EPCs have published case studies demonstrating surrogate deployment in front-end engineering.