Process Simulation softwares are used in conceptual design to gauge following

- To study various process schemes possible and finalize the optimum process scheme
- The know the product rate of fluids with feed product rates
__or__ - The know the feed rate of fluids to get the desired product rates
- To know the utilities or other process requirements for various concepts
- To know the unit operations required to get the desired product quality for various concepts
- To know the heating and cooling requirement to meet the process requirement for various concepts
- To know the power requirement to meet the process requirement for various concepts
- To know rates of by-products and treatment required for by-products for various concepts