Optimum design of liquefaction plants with gas turbine drivers conception optimale d'une usine de liquefaction avec l'utilisation des turbines a gaz comme machines d'entrainement

摘要

Gas turbine drivers have become the driver of choice for refrigerant compression systems in the newer grassroots baseload LNG plants. While gas turbine drivers are thermodynamically efficient and can result in lower capital investment for the overall facility, their limitations of predetermined available power and operating speed present unique challenges to process designers. Together with the refrigerant compression systems, the Main Cryogenic Heat Exchanger is the heart of the liquefaction process. The optimum process design will provide effective utilization of the available gas turbine driver power through carefully selected refrigerant compressors and a custom-designed Main Cryogenic Heat Exchanger. This paper discusses the optimum integration of this equipment for the design of the liquefaction plant.