Heat exchangers in the refining industry play a critical role in managing process temperatures and maximizing energy efficiency. Utilized in various stages of refining, from distillation to catalytic conversion, these devices transfer heat between fluids without mixing them. By recycling heat from hot streams to preheat cooler ones, they significantly reduce the overall energy consumption. Their strategic application not only optimizes thermal processes but also contributes to lower operating costs and a reduced environmental footprint. Heat exchangers must withstand harsh conditions and thus are designed to be durable, efficient, and reliable, meeting the stringent demands of the refining sector.