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    • 20. 发明公开
    • HYDROCARBON GAS PROCESSING
    • 碳氢气体处理
    • EP2440867A1
    • 2012-04-18
    • EP10786524.8
    • 2010-03-31
    • Ortloff Engineers, LtdSME Products, LP
    • JOHNKE, Andrew, F.LEWIS, W., LarryWILKINSON, John, D.LYNCH, Joe, T.HUDSON, Hank, M.CUELLAR, Kyle, T.
    • F25J3/00
    • C10G5/06C10G2400/20F25J3/0209F25J3/0219F25J3/0233F25J3/0238F25J3/0242F25J2200/02F25J2200/30F25J2200/70F25J2200/78F25J2200/80F25J2205/04F25J2210/06F25J2210/12F25J2240/02F25J2270/12F25J2270/60F25J2290/40F25J2290/42Y02C20/20
    • A process and an apparatus are disclosed for the recovery of propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream in a compact processing assembly. The gas stream is cooled, expanded to lower pressure, and supplied as the bottom feed to an absorbing means inside the processing assembly. A first distillation liquid stream is collected from the lower region of the absorbing means and supplied as the top feed to a mass transfer means inside the processing assembly. A first distillation vapor stream is collected from the upper region of the mass transfer means and cooled sufficiently to at least partially condense it, forming a residual vapor stream and a condensed stream. The condensed stream is supplied as the top feed to the absorbing means. A second distillation vapor stream is collected from the upper region of the absorbing means and directed into one or more heat exchange means inside the processing assembly to heat it while cooling the first distillation vapor stream. The heated second distillation vapor stream is combined with any of the residual vapor stream and the combined stream is directed into the one or more heat exchange means inside the processing assembly to heat it while cooling the gas stream. A second distillation liquid stream is collected from the lower region of the mass transfer means and directed into a heat and mass transfer means inside the processing assembly to heat it and strip out its volatile components. The quantities and temperatures of the feeds to the absorbing means are effective to maintain the temperature of the upper region of the absorbing means at a temperature whereby the major portions of the desired components are recovered in the stripped second distillation liquid stream.
    • 公开了一种用于在紧凑处理组件中从烃气流中回收丙烷,丙烯和较重烃组分的方法和设备。 气流被冷却,膨胀到较低的压力,并作为底部进料供应到处理组件内的吸收装置。 从吸收装置的下部区域收集第一蒸馏液流,并将其作为顶部进料提供给处理组件内部的传质装置。 从传质装置的上部区域收集第一蒸馏蒸气流并充分冷却以至少部分冷凝它,形成残留蒸气流和冷凝流。 冷凝物流作为顶部进料提供给吸收装置。 从吸收装置的上部区域收集第二蒸馏蒸气流并将其导入处理组件内部的一个或多个热交换装置,以在冷却第一蒸馏蒸气流的同时加热它。 将加热的第二蒸馏蒸气流与任何残余蒸气流合并,并将合并的流引入处理组件内部的一个或多个热交换装置,以在冷却气流的同时将其加热。 从传质装置的下部收集第二蒸馏液流并将其引入处理组件内部的传热和传质装置中,以加热其并将其挥发性组分除去。 进入吸收装置的进料的量和温度有效地将吸收装置的上部区域的温度维持在一个温度,由此大部分所需组分被回收在汽提过的第二蒸馏液流中。