| 摘要 |
A process for the recovery of ethane, ethylene, propane, propylene and heavi er hydrocarbon components from a hydrocarbon gas stream is disclosed. The stream is divided into first and second streams, an d the second stream is cooled and expanded to a lower pressure and supplied to a contacting device. The first stream is cooled to condense substantially all of it, expanded to the lower pressure, and then used to cool a warmer distillation stream from a distillation column to at leaf partially condense the distillation stream. At least a portion of the partially condensed distillation stream is directed the contacting devic e to intimately contact the expanded second stream, the resulting vapors and liquids are separated from the contacting device, and these liqui ds are supplied to the distillation column. The quantities and temperatures of the feeds to the contacting device and the distillation colu mn are effective to maintain the overhead temperatures of the contacting device and the distillation column at temperatures whereby the major portion of the desired components is recovered.
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