| 摘要 |
In the separation of a compressed multi-component hydrocarbon stream containing liquid and gas phases to produce a liquid product stream having a specified maximum vapor pressure and a gas product stream having a specified maximum cricondenbar, gas flaring can be reduced and other advantages obtained by the method of (i) separating the liquid and gas phases in one or more separation stages at progressively reduced pressures to produce said liquid product stream, and (ii) treating the recovered gas phase to obtain the gas product stream by partial condensation of the recovered gas phase and separation of the condensate so formed; wherein (iii) step (ii) includes the step of rectifying the recovered gas phase in a refluxing exchanger and separating the condensate so formed.
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