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    Energy-saving system and method of capturing acidic gas by using separated water
    5.
    发明授权
    Energy-saving system and method of capturing acidic gas by using separated water 有权
    节能系统及采用分离水捕获酸性气体的方法

    公开(公告)号：US09579599B2

    公开(公告)日：2017-02-28

    申请号：US15030559

    申请日：2013-12-09

    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

    Inventor： Il Hyun Baek ,  Jong Kyun You ,  Ki-Tae Park

    IPC: B01D53/14

    CPC classification number: B01D53/1425 ,  B01D53/1456 ,  B01D53/1468 ,  B01D53/1475 ,  B01D2252/204 ,  B01D2252/20478 ,  B01D2252/20484 ,  B01D2257/304 ,  B01D2257/306 ,  B01D2257/308 ,  B01D2257/504 ,  B01D2258/0283 ,  B01D2259/65 ,  Y02C10/06

    Abstract: Provided is a system and method in which a heat amount to be supplied to a regeneration tower for regenerating an absorbent may be lowered in an acidic gas capturing system for capturing acidic gas such as carbon dioxide. According to the system and method of capturing acidic gas, heat generated in the system itself is used to reduce energy consumption. According to the system and method of the inventive concept, heat exchange is conducted between low-temperature separated water generated in a capturing process and high-temperature processing gas to thereby reduce a cooling capacity of a condenser when condensing the processing gas, and also, a reboiler heat duty may be lowered by introducing the low-temperature separated water in a preheated state into the regeneration tower. In addition, the low-temperature separated water is used also in cooling a washing tower and a dilute solution through a heat integration process with respect to condensed water generated from the process itself, and thus, reduction of energy consumption of an absorbent regeneration process may be facilitated.

    Abstract translation: 提供了一种系统和方法，其中在用于捕获诸如二氧化碳的酸性气体的酸性气体捕获系统中，可以降低要供应到用于再生吸收剂的再生塔的热量。 根据捕获酸性气体的系统和方法，系统本身产生的热量用于降低能耗。 根据本发明构思的系统和方法，在捕获过程中产生的低温分离水和高温处理气体之间进行热交换，从而在冷凝处理气体时降低冷凝器的冷却能力， 通过将预热状态的低温分离水引入到再生塔中，可以降低再沸器的热负荷。 此外，低温分离水还用于通过与工艺本身产生的冷凝水相关的热积分方法来冷却洗涤塔和稀释溶液，因此减少吸收剂再生过程的能量消耗 要方便

    Method for regenerating an amine-based, acid gas absorbent using a catalyst mixture containing silver oxide and silver carbonbate
    6.
    发明授权
    Method for regenerating an amine-based, acid gas absorbent using a catalyst mixture containing silver oxide and silver carbonbate 有权

    公开(公告)号：US11198090B2

    公开(公告)日：2021-12-14

    申请号：US16500287

    申请日：2019-02-18

    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

    Inventor： Il Hyun Baek ,  Sung Chan Nam ,  Sung Youl Park

    IPC: B01D53/14 ,  B01J23/50

    Abstract: A method for regenerating an amine-based, acid gas absorbent using a mixed catalyst containing silver oxide and silver carbonate includes the steps of absorbing an acid gas into an acid gas absorbent having an amine group to obtain an acid gas-absorbed absorbent; and regenerating the amine-based, acid gas absorbent by adding a catalyst mixture containing silver oxide and silver carbonate to the acid gas-absorbed absorbent and by removing the acid gas at a temperature ranging from 40° C. to 86° C. When the amine-based acid gas absorbent is an acid gas absorbent solution and when the acid gas that is absorbed into the acid gas absorbent solution is carbon dioxide, the catalyst mixture efficiently promotes decomposition of carbon dioxide-bound carbamate in the acid gas absorbent solution that absorbs the carbon dioxide through a novel catalytic reaction pathway.

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