COMPRESSION TRAIN INCLUDING ONE CENTRIFUGAL COMPRESSOR AND LNG PLANT

Compression train for a natural gas liquefaction process. The compression train includes a driver machine and only one centrifugal compressor machine driven in rotation by the driver machine; the compressor is configured to compress a refrigerant gas with a molecular weight less than 30 g/mol from a suction pressure to a discharge pressure; the ratio between discharge and suction pressures is higher than 10, preferably 12 and more preferably 15. A LNG plant includes one or more than one compression train of the invention. 种用于天然气液化过程的压缩系。压缩系包括驱动器机器以及由所述驱动器机器旋转地驱动的仅个离心式压缩机机器；压缩机构造成将具有小于30g/mol的分子量的制冷剂气体从吸入压力压缩至排放压力；排放压力与吸入压力之间的比高于10，优选高于12，更优选高于15。种LNG设备，其包括根据本发明的个或更多个压缩系。