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    • 3. 发明申请
    • Hydrocarbon gas processing
    • 烃类气体加工
    • US20060032269A1
    • 2006-02-16
    • US11201358
    • 2005-08-10
    • Kyle CuellarJohn WilkinsonJoe LynchHank Hudson
    • Kyle CuellarJohn WilkinsonJoe LynchHank Hudson
    • F25J3/00
    • F25J3/0233F25J3/0209F25J3/0238F25J3/0242F25J2200/02F25J2200/04F25J2200/30F25J2200/50F25J2200/70F25J2200/74F25J2200/78F25J2205/02F25J2205/04F25J2240/02F25J2245/02F25J2270/12F25J2270/60F25J2290/40
    • A process for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. The stream is cooled and divided into first and second streams. The first stream is further cooled to condense substantially all of it and is thereafter expanded to the fractionation tower pressure and supplied to the fractionation tower at a first mid-column feed position. The second stream is expanded to the tower pressure and is then supplied to the column at a second mid-column feed position. A distillation stream is withdrawn from the column below the feed point of the second stream and is then directed into heat exchange relation with the tower overhead vapor stream to cool the distillation stream and condense at least a part of it, forming a condensed stream. At least a portion of the condensed stream is directed to the fractionation tower as its top feed. The quantities and temperatures of the feeds to the fractionation tower are effective to maintain the overhead temperature of the fractionation tower at a temperature whereby the major portion of the desired components is recovered.
    • 公开了从烃气流中回收乙烷,乙烯,丙烷,丙烯和较重烃组分的方法。 将流冷却并分成第一和第二流。 将第一流进一步冷却以基本上将其全部冷凝,然后将其扩展至分馏塔压力,并以第一中间柱进料位置供应至分馏塔。 将第二流扩张到塔压力,然后在第二中柱进料位置处供给塔。 蒸馏物流从第二料流的进料点下方的塔中取出,然后与塔顶塔顶蒸气流导热至热交换关系,以冷却蒸馏流并冷凝其至少一部分,形成冷凝流。 冷凝流的至少一部分作为顶部进料被引导至分馏塔。 进入分馏塔的进料的量和温度对于将分馏塔的塔顶温度维持在所需组分的主要部分被回收的温度是有效的。