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    • 14. 发明申请
    • PROCESS FOR THE SEPARATION OF A GAS RICH IN CARBON DIOXIDE
    • 二氧化碳气体分离过程
    • WO2014009300A1
    • 2014-01-16
    • PCT/EP2013/064346
    • 2013-07-08
    • L'AIR LIQUIDE,SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    • BRIGLIA, AlainDARDE, ArthurTERRIEN, Paul
    • F25J3/02F25J5/00
    • F25J1/0027F25J3/0223F25J3/0266F25J3/0295F25J5/005F25J2200/02F25J2200/70F25J2205/04F25J2210/04F25J2215/04F25J2220/82F25J2230/30F25J2245/02F25J2250/02F25J2270/02F25J2280/02F25J2280/40F25J2290/12F25J2290/34Y02C10/12
    • In a process for the separation of a gas rich in carbon dioxide and containing at least one component lighter than carbon dioxide, the feed gas rich in carbon dioxide is cooled in a first heat exchanger (E1), partially condensed and separated to form a gaseous portion and a liquid, sending the liquid portion to the top of a distillation column (K), removing a liquid stream richer in carbon dioxide than the feed gas from the bottom of the distillation column, removing a gaseous stream (17) less rich in carbon dioxide than the feed gas from the top of the distillation column and warming the gaseous stream in the first heat exchanger, sending the gaseous portion to a shell and tube heat exchanger (V3) having tubes in a bath of triple point carbon dioxide, in which it condenses at least partially to form a liquid fraction, sending the liquid fraction (35) to the top of the distillation column, vaporizing a liquid stream (19) from the bottom of the distillation column outside or within the distillation column to form a gas which is subsequently separated in the distillation column, expanding a liquid stream (21) from the bottom of the distillation column, vaporizing at least part of the expanded liquid stream in the shell and tube heat exchanger to form a vapor and warming the vapor formed in the first heat exchanger.
    • 在分离富含二氧化碳并含有至少一种比二氧化碳更轻的组分的气体的方法中,富含二氧化碳的进料气体在第一热交换器(E1)中被冷却,部分冷凝和分离以形成气态 将液体部分送入蒸馏塔(K)的顶部,除去比来自蒸馏塔底部的进料气体更富含二氧化碳的液体流,除去较不富集的气流(17) 二氧化碳比来自蒸馏塔顶部的进料气体加热第一热交换器中的气流,将气体部分送到具有三相二氧化碳浴管的管壳式热交换器(V3)中, 其至少部分地冷凝以形成液体馏分,将液体馏分(35)送至蒸馏塔的顶部,将蒸馏塔底部的液体物流(19)从外部或内部蒸发 蒸馏塔以形成随后在蒸馏塔中分离的气体,从蒸馏塔的底部膨胀液体流(21),使壳管式热交换器中的至少部分膨胀液流汽化,形成蒸汽 以及加热在第一热交换器中形成的蒸气。