Process Flow Diagram (PFD)

A Process Flow Diagram (PFD) is a visual representation that outlines the major steps and equipment involved in a chemical or industrial process. It shows how raw materials are transformed into products through various units like reactors, pumps, or distillation columns, connected by pipelines for material flow. PFDs help engineers and operators understand, analyze, and optimize the process efficiency, safety, and design. They focus on the overall process rather than detailed control systems, providing a clear overview of the process structure and material movement within the plant.