In-line Turboexpander An in-line turboexpander is a mechanical device used in high-pressure gas processing systems to efficiently reduce pressure while simultaneously extracting energy. Unlike conventional throttling valves that waste energy during pressure drops, turboexpanders convert this pressure into mechanical work by expanding the gas through a turbine. This expansion cools the gas and is often employed in applications like natural gas liquefaction, ethylene production, or cryogenic air s