This white paper highlights the role of Companders in petrochemical decarbonization. As industries face increasing pressures to reduce energy consumption and CO2 emissions, Companders—a combination of compressor and turboexpander on a single skid—offer a compact, efficient solution. They enable significant energy recovery and cost savings in processes like HPPO, where waste energy is converted into mechanical power. The paper underscores the Compander's efficiency, flexibility, and contribution to the energy transition, aligning with sustainability goals.