| 摘要 |
A process for separating substantially all of the C3 and heavier components and a major portion of the C2 component from a natural gas stream using a cryogenic process. The process uses a rectifying column 12 which provides an overhead stream of methane in combination with a demethanizing column 22 to separate the C2 and heavier components. A reflux for the rectifying column is supplied by compressing a small portion of the overhead stream 11 and condensing it via heat exchange with the overhead stream. <IMAGE> |
