PRO/II, HYSYS, ASPEN PLUS respective characteristics

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AspenPlus is a software with excellent performance that is widely used in the research and development, design, production process control, optimization and technical transformation of chemical processes. This simulation system was developed by MIT in the late 1970s. Introduced to the market by Aspen Technology Company in the United States in the early 1980s, it uses strict and latest calculation methods to perform unit and whole-process calculations to provide enterprises with accurate units. * model, and can also evaluate the optimization of existing devices * Optimized design of construction or new construction or reconstruction equipment. This system has complete functions and large scale, and can be used in chemical industry, oil refining, petrochemical industry, gas processing, coal, medicine, metallurgy, environmental protection, power, energy saving, food and many other industrial fields. ASPEN PLUS is a process steady-state simulation software based on flow charts, including 56 types of units * The model contains a database of 5,000 pure components, 5,000 pairs of binary mixtures, 3,314 solid compounds, and 40,000 binary interaction parameters. For a simulation process, the correct selection of accurate physical property parameters is the key to the quality of the simulation results. AspenPlus as unit * Thermodynamic properties and transport property parameters are provided for calculations. Commonly used physical property parameters in typical AspenPlus simulations include fugacity coefficient, enthalpy, density, entropy and free energy. AspenPlus itself has two common databases: Aspen CD - a database developed by ASPEN TECH, DIPPR - a database designed by the Physical Properties Data Design Institute of the American Chemical Society. There are also multiple dedicated databases, such as electrolytes, solids, and fuel products. These databases combine some dedicated state equations and dedicated units. * The operating module allows AspenPlus software to be used in special fields such as solid processing electrolytes, which greatly broadens the application scope of AspenPlus. HYSYS is mainly used in oil refining. Dynamic simulation is its strength. ASPEN is intelligent, used for process simulation in the chemical industry, relatively large or long processes, and the database is relatively complete and open. It and HYSYS are now one company. PRO/II can be used for equipment accounting, short process, or distillation accounting. Chemcad is relatively poor and can be downloaded from anywhere on the Internet. For school use only.