| 摘要 |
<p>An offshore apparatus for liquefying natural gas comprises a support structure which is either floatable or is otherwise adapted to be disposed in an offshore location at least partially above sea level, and natural gas liquefaction means disposed on or in the support structure. The natural gas liquefaction means comprises a series of heat exchangers (150, 151, 153) for cooling the natural gas in countercurrent heat exchange relationship with a refrigerant, compression means (169, 170) for compressing the refrigerant, and expansion means (160, 161) for isentropically expanding at least two separate streams (126, 128) of the compressed refrigerant, wherein said expanded streams of refrigerant communicate with a cool end of a respective one of the heat exchangers (150, 151, 153).</p> |
