| 摘要 |
<p>"PROCESS FOR THE SEPARATION OF A C2 HYDROCARBON FRACTION FROM NATURAL GAS" In a process for separating C2+ hydrocarbons from natural gas under elevated pressure, by rectification wherein the temperature and pressure required for rectification are attained by heat exchange and two-stage engine expansion, the rectification being conducted between the two expansion stages, the methane fraction obtained during rectification is heated to ambient temperature, then engine expanded, and again heated to ambient temperature. The peak cold for rectification is essentially produced by engine expansion of the raw gas to be fractionated.</p> |
