Symbolic representation of chemical processes, in the field of chemical engineering, and process engineering, help engineers and designers study the process system and monitor the effectiveness of each of the plant equipment, and they provide clues to the working of the chemical plant or industrial unit. With the widespread use of computer technology, these diagrams are created with Process Flow Diagram Software that has replaced previous methods of the same, and they are much preferred over the traditional manual techniques. Computer aided design tools have an important role to play when it comes to the simulation of error free process flow diagrams.