Prerequisites you should pay attention to when using Hysys

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Some immature personal suggestions: Hysys is recognized as a short and concise process simulation system. The software's speed, ease of use, and convergence characteristics are quite good. In particular, the convergence of its loop module is highly praised. But before using it, there are a few things to note: (1) It is often thought that it is particularly suitable for oil refining. In fact, it is especially suitable for organic systems. ； (2) If most of the process is an organic system, but there is an electrolyte part that needs to be calculated, then don't use Hysys. It can hardly deal with electrolytes, otherwise, you will regret it halfway. Then you'd better use ASPEN. (3) For low-temperature systems, such as air separation, Hysys shows amazing capabilities. I use Hysys to simulate industrial waste gas Co2 to produce food-grade CO2, operating at around -30C, and the industrial device is already running stably. (4) Systems with solid reactions are difficult to simulate with Hysys, such as: Si+HCL---->SiHCL3, although this reaction is simple, it cannot be simulated. Because there is no such thing as the database in HYSYS: Si, Fe, Cu, etc. Of course you can create virtual components, but it's cumbersome. Generally speaking, ASPEN is the worst written from a software perspective and therefore difficult to use, but from a chemical engineering perspective, it is the most complete. The PROII software is easier to use than ASPEN, but the electrolyte and solid processing is slightly worse. As mentioned above, Hysys ranks third, and it is very easy to use purely organic systems.