hello

im curious on what is the use of the " splitter" in hysys

To replace some unit operation can not be easily model such as component removal unit i.e. mercury adsorption, Mole sieve dehydrator, etc.

Dear,
The Splitter operation is one where you find bottleneck to model any system but you know the end results or outputs of the system then use the splitter. For further details you can check the Hysys Unit Operations Guide.