| 摘要 |
The present invention is directed to a process for producing LNG by directing a feed stream (11) comprising natural gas to a cooling stage that a cools the feed stream in at least one cooling step (12) producing a cooled feed stream (13), b expands the cooled feed stream in at least one expansion step (14) by reducing the pressure of the cooled feed stream producing a refrigerated vapor component and a liquid component, and c separates (16) at least a portion of the refrigerated vapor component (18, 21) from the liquid component (17) wherein at least a portion of the cooling for the process is derived from at least a portion of the refrigerated vapor component (18) and repeating steps a through c one or more times until at least substantial portion of the feed stream in the first cooling stage is processed into LNG (37) wherein the feed stream in step a comprises at least a portion of the liquid component produced from a previous cooling stage. |
