Janošovský J., Labovský J., Jelemensky L., 2016, Automated Model-based HAZOP Study in Process Hazard Analysis, Chemical Engineering Transactions, 48, 505-510.
In the age of chemical processes operated at extreme pressures and temperatures it is necessary to perform a detailed process safety analysis. Hazard and operability study (HAZOP) is one of the most used and highly efficient techniques for the identification of potential hazards and operability problems. Model-based HAZOP study is based on the implementation of a detailed mathematical model of chemical productions. Possibilities and limitations of model-based HAZOP study using Aspen HYSYS are discussed in this work. Results of numerical simulations are collected and directly transformed into standard HAZOP tables. Advantages and disadvantages of the presented software tool are shown in the process hazard analysis of a chemical production with strong nonlinear behavior, an ammonia synthesis reactor system.
