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    • 3. 发明专利
    • System and method for recovering gas containing co2 and h2s
    • 用于回收含有二氧化碳和硫化氢的气体的系统和方法
    • JP2014161757A
    • 2014-09-08
    • JP2013032642
    • 2013-02-21
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • HORIZOE KOJIKATO TAKEHIROMURAKAMI SHIGENORIYUSHIMA MASAKIISHIDA KAZUO
    • B01D53/14C10K1/14
    • C10K1/004B01D53/1425B01D53/1462B01D53/1493B01D2252/204B01D2257/304B01D2257/504C01B17/167C10K1/005C10K1/08Y02C10/06Y02P20/152
    • PROBLEM TO BE SOLVED: To provide a system and a method for recovering a gas containing COand HS.SOLUTION: A system and a method for recovering a gas containing COand HS comprises: an absorption column 13 to absorb COand HS from an introduction gas by contacting the introduction gas 11 with an absorption liquid 12 to absorb COand HS; an absorption liquid regeneration column 14 where a rich solution 12A absorbed with COand the like is drawn from the bottom of the absorption column 13 and introduced from the top 14a of the absorption liquid regeneration column 14 and the absorption liquid 12 is regenerated by discharging COand the like; a second supply line Lwhere a regenerated lean liquid 12B is returned from the regeneration column 14 to the absorption column 13; a third supply line Lwhere a semi-rich solution 12C absorbed with a part of COand HS is discharged from the vicinity of the middle stage 13b of the absorption column 13 and the semi-rich solution 12C is introduced to the vicinity of the middle stage 14b of the regeneration column 14; and a heat exchanger 17 for the semi-rich solution which is interposed at a crossing part of the third supply line with the second supply line and where the absorption liquid absorbed with COand HS discharged from the vicinity of the middle stage of the absorption column and a regeneration absorption liquid are heat-exchanged.
    • 要解决的问题:提供一种用于回收含有CO和HS的气体的系统和方法。解决方案:一种用于回收含有CO和HS的气体的系统和方法,包括:吸收塔13,其通过接触从吸入气体吸收CO和HS 引入气体11具有吸收液体12以吸收CO和HS; 吸收液体再生塔14,其中从CO吸收的富溶液12A从吸收塔13的底部抽出并从吸收液体再生塔14的顶部14a引入,吸收液12通过排出CO而再生, 喜欢; 第二供应管线L,再生稀液体12B从再生塔14返回到吸收塔13; 第一供应线L,其中一部分CO和HS吸收的半富含溶液12C从吸收塔13的中间阶段13b附近排出,并且半富含溶液12C被引入中间段14b附近 的再生塔14; 以及用于所述半富溶液的热交换器17,其被插入在所述第三供给管线的交叉部分与所述第二供应管线的位置,并且所述吸收液体被从所述吸收塔的中间阶段附近排出的CO 2和HS吸收; 再生吸收液被热交换。
    • 5. 发明专利
    • Method and apparatus for removing carbon dioxide and hydrogen sulfide
    • 二氧化碳和硫化氢的方法和装置
    • JP2010120013A
    • 2010-06-03
    • JP2009241958
    • 2009-10-21
    • Hitachi Ltd株式会社日立製作所
    • AKIYAMA TOMOKO
    • B01D53/14B01D53/50B01D53/52B01D53/77B01J20/02C01B32/50
    • B01D53/1406B01D53/02B01D53/1425B01D53/1462B01D2251/102B01D2253/112B01D2255/20707B01D2255/20769B01D2256/24B01D2257/302B01D2259/80C01B17/0408C01B17/167C10L3/10C10L3/102Y02C10/04Y02C10/06Y02P20/152
    • PROBLEM TO BE SOLVED: To provide a method and an apparatus for removing acid materials with limited energy consumption in the a purifying process. SOLUTION: A gas to be treated 21 including carbon dioxide and hydrogen sulfide is led to the first absorbing column 1, and carbon dioxide and hydrogen sulfide are removed by contacting with an absorbing liquid in it. Then, the gas to be treated 21 is led into the second absorbing column 2, and the remaining carbon dioxide and hydrogen sulfide are removed by contacting with the absorbing liquid in it. The absorbing liquid 25 which has absorbed carbon dioxide and hydrogen sulfide in the first and the second absorbing columns 1 and 2 is led to a flash tank 4 where an internal pressure is kept lower than that in these absorbing columns 1 and 2, a part of carbon dioxide and hydrogen sulfide is released, a part is cooled and led to the second absorbing column 2, and the remaining part is led to a regenerating column 5 to be heated to release the remaining carbon dioxide and hydrogen sulfide. The part of the absorbing liquid led to the regenerating column 5 is cooled and led to the first absorbing column 1, the rest is cooled and led to the second absorbing column 2 from the position near to the column top part, and it is contacted with the gas to be treated in the second absorbing column 2 again. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种在净化过程中以有限的能量消耗去除酸性物质的方法和装置。 解决方案:将包含二氧化碳和硫化氢的待处理气体21导入第一吸收塔1,并通过与其中的吸收液体接触除去二氧化碳和硫化氢。 然后,待处理气体21被引入第二吸收塔2,并且通过与其中的吸收液体接触来除去剩余的二氧化碳和硫化氢。 在第一吸收塔1和第二吸收塔2中吸收二氧化碳和硫化氢的吸收液25被引导到闪蒸罐4,其中内部压力保持低于这些吸收塔1和2中的一部分, 释放二氧化碳和硫化氢,将一部分冷却并导入第二吸收塔2,将剩余部分引入再生塔5以加热以释放剩余的二氧化碳和硫化氢。 导致再生塔5的吸收液的一部分被冷却并被引导到第一吸收塔1,其余部分被冷却并从靠近塔顶部的位置引导到第二吸收塔2,并与 再次在第二吸收塔2中处理的气体。 版权所有(C)2010,JPO&INPIT