| 摘要 |
CRYOGENIC GAS PLANT 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 in combination with a demethanizing column 22 to separate the C2 and heavier components with a reflux for the rectifying column, which reflux 13 is supplied by compressing a small portion of the overhead stream 11 and condensing it via heat exchange with the overhead stream. |
