The diagram has to have the process steps, such unit operations and the usage of

The diagram has to have the process steps, such unit operations and the usage of this unit regarding how good are you as a chemical Eng can make this process to be as perfect as possible.
Mention the advantage and the disadvantage of this process.
If the unit does exchange of heat exchange please do mention that and the processor with a diagram.
Focus: TASK 2
Draw diagrams and sketches showing the progress of the unit.
Focus: TASK 3
What is mass transfer and heat exchanger regarding the unit process and please do mention the things such; (Tube and Shell).