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    • 8. 发明申请
    • Hydrocarbon Gas Processing
    • 烃气处理
    • US20100251764A1
    • 2010-10-07
    • US12717394
    • 2010-03-04
    • Andrew F. JohnkeW. Larry LewisJohn D. WilkinsonJoe T. LynchHank M. HudsonKyle T. Cuellar
    • Andrew F. JohnkeW. Larry LewisJohn D. WilkinsonJoe T. LynchHank M. HudsonKyle T. Cuellar
    • F25J3/00
    • F25J3/0209C10G5/06F25J3/0233F25J3/0238F25J2200/02F25J2200/70F25J2205/04F25J2210/06F25J2240/02F25J2270/12F25J2270/60F25J2290/40F25J2290/42
    • A process and an apparatus are disclosed for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbon components from a hydrocarbon gas stream in a compact processing assembly. The gas 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 lower pressure and supplied as a feed between first and second absorbing means inside the processing assembly. The second stream is expanded to lower pressure and supplied as the bottom feed to the second absorbing means. A distillation vapor stream is collected from the upper region of the first absorbing means and directed into one or more heat exchange means inside the processing assembly to heat it while cooling the gas stream and the first stream. The heated distillation vapor stream is compressed to higher pressure and divided into a volatile residue gas fraction and a compressed recycle stream. The compressed recycle stream is cooled to condense substantially all of it by the distillation vapor stream in the one or more heat exchange means inside the processing assembly, and is thereafter expanded to lower pressure and supplied as top feed to the first absorbing means. A distillation liquid stream is collected from the lower region of the second absorbing means and directed into a heat and mass transfer means inside the processing assembly to heat it and strip out its volatile components while cooling the gas stream. The quantities and temperatures of the feeds to the first and second absorbing means are effective to maintain the temperature of the upper region of the first absorbing means at a temperature whereby the major portions of the desired components are recovered in the stripped distillation liquid stream.
    • 公开了用于从紧凑加工组件中的烃气流中回收乙烷,乙烯,丙烷,丙烯和较重烃组分的方法和装置。 将气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,然后将其膨胀至较低的压力,并作为进料在第一和第二吸收装置内部供给到处理组件内部。 第二流膨胀到较低的压力,并作为底部进料供给到第二吸收装置。 蒸馏蒸汽流从第一吸收装置的上部区域收集并且被引导到处理组件内的一个或多个热交换装置中,以在冷却气流和第一流的同时对其进行加热。 将加热的蒸馏蒸气流压缩至较高压力并分成挥发性残余气体馏分和压缩的再循环流。 将压缩的再循环料流冷却以通过加工组件内部的一个或多个热交换装置中的蒸馏蒸气流冷凝,然后膨胀至较低压力并作为顶部进料供应至第一吸收装置。 从第二吸收装置的下部区域收集蒸馏液体物流,并将其导入加工组件内部的热和质量传递装置,以加热它并在冷却气流的同时剥离其挥发性成分。 进料到第一和第二吸收装置的量和温度对于将第一吸收装置的上部区域的温度保持在所需组分的主要部分在汽提的蒸馏液体流中回收的温度是有效的。