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    System and method for recovering carbon dioxide from flue gas
    1.
    发明授权
    System and method for recovering carbon dioxide from flue gas 有权
    从废气中回收二氧化碳的系统和方法

    公开(公告)号：US08647420B2

    公开(公告)日：2014-02-11

    申请号：US13081925

    申请日：2011-04-07

    Applicant: Hiroshi Tsubone ,  Toyoshi Nakagawa ,  Takashi Kamijo ,  Tsuyoshi Oishi ,  Katsufumi Inoue ,  Osamu Miyamoto

    Inventor： Hiroshi Tsubone ,  Toyoshi Nakagawa ,  Takashi Kamijo ,  Tsuyoshi Oishi ,  Katsufumi Inoue ,  Osamu Miyamoto

    IPC: B01D53/14

    CPC classification number: B01D53/1425 ,  B01D2257/504 ,  Y02C10/04 ,  Y02C10/06

    Abstract: [Problem] To provide a system for recovering carbon dioxide from flue gas, in which a reboiler in a regenerator can be compactly installed, and a method therefor, in facilities where CO2 or the like contained in flue gas is recovered.[Solving Means] To include an absorber 1006 that absorbs CO2 contained in flue gas 1002, a regenerator 1008 that strips CO2 from CO2 absorbent (rich solution) 1007 to regenerate absorbent, internal shells 101 provided at a bottom of the regenerator 1008 with a predetermined interval therebetween, into which regenerated CO2 absorbent is introduced by a feeding unit 102 from a bottom side thereof so that the CO2 absorbent overflows from an upper end of the internal shell thereof toward the bottom of the regenerator, and a reboiler that is inserted into the internal shells 101 in a direction orthogonal to a vertical axis and includes a heat-transfer tube 103 that reboils absorbent. Steam separated from CO2 absorbent reboiled by the heat-transfer tube 103 is transferred to an upper part of a regenerator, condensed absorbent is caused to overflow from an upper end of the internal shell and to be discharged from a bottom side of a regenerator, and the absorbent is fed to the absorber 1006 as regenerated CO2 absorbent (lean solution) 1009.

    Abstract translation: [问题]提供一种回收二氧化碳的方法，其中回收器中的再沸器可以紧凑地安装在其中，并且其方法在烟道气中包含二氧化碳等的设备中回收二氧化碳。 为了包括吸收烟道气1002中包含的CO 2的吸收器1006，从CO 2吸收剂（富溶液）1007中吸收CO 2以再生吸收剂的再生器1008，设置在再生器1008的底部的内部壳体101具有预定的 其中再生的CO 2吸收剂由进料单元102从其底侧引入其中，使得CO 2吸收剂从其内壳的上端向再生器的底部溢出，并且将再沸器插入到再生器 在与垂直轴正交的方向上具有内壳101，并且包括再吸收吸收剂的传热管103。 与由热传输管103再沸腾的CO 2吸收器分离的蒸汽被转移到再生器的上部，使冷凝的吸收剂从内壳的上端溢出并从再生器的底侧排出， 吸收剂作为再生的CO 2吸收剂（贫溶液）1009被供给到吸收器1006。

    SYSTEM AND METHOD FOR RECOVERING CARBON DIOXIDE FROM FLUE GAS
    2.
    发明申请
    SYSTEM AND METHOD FOR RECOVERING CARBON DIOXIDE FROM FLUE GAS 有权
    从气体回收二氧化碳的系统和方法

    公开(公告)号：US20110250120A1

    公开(公告)日：2011-10-13

    申请号：US13081925

    申请日：2011-04-07

    Applicant: Hiroshi Tsubone ,  Toyoshi Nakagawa ,  Takashi Kamijo ,  Tsuyoshi Oishi ,  Katsufumi Inoue ,  Osamu Miyamoto

    Inventor： Hiroshi Tsubone ,  Toyoshi Nakagawa ,  Takashi Kamijo ,  Tsuyoshi Oishi ,  Katsufumi Inoue ,  Osamu Miyamoto

    IPC: C01B31/20 ,  B01D53/14

    CPC classification number: B01D53/1425 ,  B01D2257/504 ,  Y02C10/04 ,  Y02C10/06

    Abstract: [Problem] To provide a system for recovering carbon dioxide from flue gas, in which a reboiler in a regenerator can be compactly installed, and a method therefor, in facilities where CO2 or the like contained in flue gas is recovered.[Solving Means] To include an absorber 1006 that absorbs CO2 contained in flue gas 1002, a regenerator 1008 that strips CO2 from CO2 absorbent (rich solution) 1007 to regenerate absorbent, internal shells 101 provided at a bottom of the regenerator 1008 with a predetermined interval therebetween, into which regenerated CO2 absorbent is introduced by a feeding unit 102 from a bottom side thereof so that the CO2 absorbent overflows from an upper end of the internal shell thereof toward the bottom of the regenerator, and a reboiler that is inserted into the internal shells 101 in a direction orthogonal to a vertical axis and includes a heat-transfer tube 103 that reboils absorbent. Steam separated from CO2 absorbent reboiled by the heat-transfer tube 103 is transferred to an upper part of a regenerator, condensed absorbent is caused to overflow from an upper end of the internal shell and to be discharged from a bottom side of a regenerator, and the absorbent is fed to the absorber 1006 as regenerated CO2 absorbent (lean solution) 1009.

    Abstract translation: [问题]提供一种回收二氧化碳的方法，其中回收器中的再沸器可以紧凑地安装在其中，并且其方法在烟道气中包含二氧化碳等的设备中回收二氧化碳。 为了包括吸收烟道气1002中包含的CO 2的吸收器1006，从CO 2吸收剂（富溶液）1007中吸收CO 2以再生吸收剂的再生器1008，设置在再生器1008的底部的内部壳体101具有预定的 其中再生的CO 2吸收剂由进料单元102从其底侧引入其中，使得CO 2吸收剂从其内壳的上端向再生器的底部溢出，并且将再沸器插入到再生器 在与垂直轴正交的方向上具有内壳101，并且包括再吸收吸收剂的传热管103。 与由热传输管103再沸腾的CO 2吸收器分离的蒸汽被转移到再生器的上部，使冷凝的吸收剂从内壳的上端溢出并从再生器的底侧排出， 吸收剂作为再生的CO 2吸收剂（贫溶液）1009被供给到吸收器1006。

    Flue gas treating process and system
    3.
    发明授权
    Flue gas treating process and system 失效
    烟气处理工艺及系统

    公开(公告)号：US6096279A

    公开(公告)日：2000-08-01

    申请号：US033894

    申请日：1998-03-03

    Applicant: Koichiro Iwashita ,  Kazuaki Kimura ,  Toyoshi Nakagawa ,  Naohiko Ukawa ,  Susumu Okino ,  Kiyoshi Okazoe

    Inventor： Koichiro Iwashita ,  Kazuaki Kimura ,  Toyoshi Nakagawa ,  Naohiko Ukawa ,  Susumu Okino ,  Kiyoshi Okazoe

    IPC: B01D53/14 ,  B01D53/50

    CPC classification number: B01D53/508 ,  B01D53/1481

    Abstract: Flue gas is treated for the presence of SO.sub.3, without resorting to ammonia injection, by adding a powder into the flue gas and subsequently bringing the flue gas into gas-liquid contact with an absorbing fluid, whereby the SO.sub.2 present in the flue gas is removed by absorption into the absorbing fluid. The treatment process may also include introducing the flue gas into a dust collector, whereby dust, including the powder present in the flue gas, is collected, and/or recovering heat from the flue gas by means of a heat exchanger, whereby the flue gas is cooled. A system for treating flue gas is also provided.

    Abstract translation: 对烟气进行处理，不用借助氨注入，通过向烟道气中加入粉末，随后使烟道气与吸收液体气液接触，由此除去烟道气中存在的SO2 通过吸收到吸收液中。 处理过程还可以包括将烟道气引入集尘器，由此收集包括烟道气中存在的粉末的粉尘，和/或通过热交换器从烟道气中回收热量，从而烟道气 被冷却。 还提供了一种处理烟气的系统。

    Wet flue-gas dsulfurization system
    4.
    发明授权
    Wet flue-gas dsulfurization system 失效
    湿式烟气脱硫系统

    公开(公告)号：US5665129A

    公开(公告)日：1997-09-09

    申请号：US523826

    申请日：1995-09-06

    Applicant: Kiyoshi Okazoe ,  Toyoshi Nakagawa ,  Toru Takashina

    Inventor： Kiyoshi Okazoe ,  Toyoshi Nakagawa ,  Toru Takashina

    IPC: B01D53/34 ,  B01D53/50 ,  B01D53/77 ,  C01F5/40 ,  C01F11/46 ,  B01D47/14

    CPC classification number: B01D53/504 ,  C01F11/464 ,  C01F5/40

    Abstract: A wet flue-gas desulfurization system which effectively reduces the mist concentration in the treated gas at its outlet. The system includes an absorption column, formed with a tank at the bottom which is supplied with an absorbent slurry and a circulating pump for forcing the slurry upwardly from the tank into the flue gas inlet at the top of the column for contact with flue gas. Sulfur dioxide, for example, is removed from the flue gas, being introduced in the flue gas inlet, by absorption with the absorbent slurry. The treated gas, free of sulfur dioxide, is discharged through a gas-outlet duct formed to rise integrally from the top of an end part of the tank. For reducing the mist concentration a mist eliminator is provided and is held upright, as a vertical partition, across the riser of the duct, with the lower end of the eliminator being extended partly into the bath of the absorbent slurry inside the tank.

    Abstract translation: 一种湿式烟气脱硫系统，可有效降低出口处理气体中的雾浓度。 该系统包括吸收塔，底部形成有供给吸收剂浆料的罐，以及循环泵，用于将浆料从罐向上推入塔顶部的烟道气入口以与烟气接触。 例如，二氧化硫通过吸收剂浆料的吸收被从烟道气中除去，被引入烟道气入口。 处理过的无二氧化硫的气体通过形成为从罐的端部顶部整体上升的气体出口导管排出。 为了减少雾浓度，提供雾气消除器，并且作为垂直分隔件直立地延伸穿过管道的立管，消除器的下端部分地延伸到罐内的吸收剂浆液的浴中。

    Flue gas treating process and system
    9.
    发明授权
    Flue gas treating process and system 失效
    烟气处理工艺及系统

    公开(公告)号：US06203598B1

    公开(公告)日：2001-03-20

    申请号：US09246130

    申请日：1999-02-08

    Applicant: Shigeo Hasegawa ,  Naohiko Ukawa ,  Susumu Okino ,  Koichiro Iwashita ,  Kazuaki Kimura ,  Atsushi Yoshioka ,  Yoshimitsu Kawanishi ,  Shoichi Onishi ,  Toru Takashina ,  Toyoshi Nakagawa

    Inventor： Shigeo Hasegawa ,  Naohiko Ukawa ,  Susumu Okino ,  Koichiro Iwashita ,  Kazuaki Kimura ,  Atsushi Yoshioka ,  Yoshimitsu Kawanishi ,  Shoichi Onishi ,  Toru Takashina ,  Toyoshi Nakagawa

    IPC: B01D5310

    CPC classification number: B01D53/75 ,  B01D53/501 ,  B01D53/502 ,  B01D53/508 ,  B01D2251/404 ,  B01D2257/302

    Abstract: This invention relates to a flue gas treating process including a heat recovery step for recovering heat from flue gas by means of a heat exchanger (4) and thereby cooling the flue gas, and a subsequent absorption step for bringing the flue gas into gas-liquid contact with an absorbing fluid (D) in absorption towers (12, 13) so as to remove at least SO2 present in the flue gas by absorption into the absorbing fluid (D), which is characterized, for example, in that a powder addition step for spraying a powder collectable in the absorption step into the flue gas is provided prior to the heat recovery step. This invention makes it possible to provide a flue gas treating process in which a countermeasure against SO3 present in flue gas can be easily achieved without resorting to ammonia injection and the flue gas can further be purified without the disadvantage of causing the injected substance to remain in the treated flue gas.

    Abstract translation: 烟气处理方法技术领域本发明涉及一种烟道气处理方法，其包括通过热交换器（4）从烟道气中回收热量并由此冷却烟道气的热回收步骤，以及随后的吸收步骤，用于将烟道气引入气液 与吸收塔（12,13）中的吸收流体（D）接触，以便通过吸收到吸收流体（D）中来除去烟道气中存在的至少SO 2，其特征在于：粉末添加 在热回收步骤之前提供将在吸收步骤中可收集的粉末喷射到烟道气中的步骤。 本发明使得可以提供一种烟道气处理方法，其中可以容易地实现对烟气中存在的SO 3的对策，而不需要采用氨注射，并且可以进一步净化烟道气，而不会导致注入物质残留 经处理的烟气。

    Flue gas treating system
    10.
    发明授权
    Flue gas treating system 失效
    烟气处理系统

    公开(公告)号：US5762884A

    公开(公告)日：1998-06-09

    申请号：US667067

    申请日：1996-06-20

    Applicant: Kiyoshi Okazoe ,  Toyoshi Nakagawa ,  Atsushi Tatani

    Inventor： Kiyoshi Okazoe ,  Toyoshi Nakagawa ,  Atsushi Tatani

    IPC: B01D53/34 ,  B01D53/50 ,  B01D53/74 ,  B01D53/77 ,  B01D50/00 ,  C01B17/00 ,  C01F11/46

    CPC classification number: B01D53/74 ,  B01D53/501 ,  B01D53/504 ,  C02F2103/18

    Abstract: This invention relates to a flue gas treating system including a desulfurization apparatus for bringing flue gas into contact with a calcium compound-containing slurry so as to cause sulfur dioxide present in the flue gas to be absorbed into the slurry, oxidizing the slurry having undergone contact with flue gas, and subjecting the oxidized slurry to solid-liquid separation so as to obtain gypsum as a by-product; a waste water treating apparatus for treating part of a first filtrate produced during solid-liquid separation of the slurry having undergone contact with flue gas in the desulfurization apparatus; and solid-liquid separation device for subjecting sludge produced in the waste water treating apparatus to solid-liquid separation independently of the slurry having undergone contact with flue gas, wherein a solid material separated from the sludge by the solid-liquid separation device is incorporated into the gypsum and all of a second filtrate produced during solid-liquid separation of the sludge by the solid-liquid separation device is introduced into the waste water treating apparatus together with part of the first filtrate. In this system, the dumping disposal of sludge produced in the waste water treating apparatus is not required and the concentration of impurities in the absorbent slurry within the desulfurization apparatus can be kept on a low level.

    Abstract translation: 烟气处理系统技术领域本发明涉及一种烟气处理系统，其包括使烟道气与含钙化合物的浆料接触的脱硫装置，以使存在于烟道气中的二氧化硫被吸收到浆料中，使经过接触的浆料氧化 用烟道气，经氧化浆液进行固液分离，得到作为副产物的石膏; 废水处理装置，用于处理在脱硫装置中与废气接触的浆料的固液分离期间产生的第一滤液的一部分; 以及用于将废水处理装置中产生的污泥与用于与烟道气接触的浆料独立地进行固液分离的固液分离装置，其中通过固液分离装置与污泥分离的固体物质被并入 将固体 - 液体分离装置将污泥固液分离时产生的石膏和所有第二滤液与部分第一滤液一起导入废水处理装置。 在该系统中，不需要在废水处理装置中产生的污泥的倾倒处理，脱硫装置内的吸收剂浆料中的杂质浓度可以保持在低水平。

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