Gas plants, also known as Gas Liquid Recovery Units, recover marketable hydrocarbon liquids from gas streams and control sales gas BTU content. Additional benefits include eliminating condensation and the two-phase flow in transmission pipelines while also providing gas with a consistent heating value for fuel to compression and combustion turbines.
The simplest form of liquid recovery units utilizes heat exchangers and an external refrigeration system to cool the gas and separate the hydrocarbon liquids. The separated gas is cross exchanged with the inlet gas for initial cooling. The separated liquid is then level controlled to a stabilizer where the temperature and pressure is controlled to produce a specified vapor pressure product. QBJ gas plants are designed to use mechanical refrigeration, J-T refrigeration, and our proprietary mixed refrigerant system.