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    • 8. 发明公开
    • Process and apparatus for the separation of a gas rich in carbon dioxide
    • Verfahren und Vorrichtung zum Trennen eines Gases mit hohem Kohlendioxid-Gehalt
    • EP2685191A1
    • 2014-01-15
    • EP12305848.9
    • 2012-07-13
    • 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) 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 将液体部分送到蒸馏塔(K)的顶部,除去比来自蒸馏塔底部的进料气体更浓的二氧化碳液体流,除去不富有的气流(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,将气态部分送到壳管式热交换器(V3),其中冷凝至少部分地形成液体馏分 将所述液体馏分(35)送入所述蒸馏塔的顶部,在所述蒸馏塔的外部或所述蒸馏塔内蒸发来自所述蒸馏塔底部的液体流(19),以形成随后的气体 在蒸馏塔中分离,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,形成蒸汽并加热第一 热交换器。