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    • 5. 发明公开
    • 니트릴 관능기를 가진 아민계 이산화탄소 흡수제와 이를 이용한 이산화탄소 흡수방법 및 분리방법
    • 作为二氧化碳吸收剂的硝酸官能化胺和使用其吸收和排出二氧化碳的方法
    • KR1020140087788A
    • 2014-07-09
    • KR1020120158447
    • 2012-12-31
    • 경희대학교 산학협력단
    • 김훈식최영섭전영은김희환
    • B01J20/22B01D53/62
    • B01D53/1475B01D53/1425B01D53/1493B01D2252/20426B01D2252/20478B01D2252/20484B01D2252/2053B01D2252/502B01D2252/504Y02A50/2342Y02C10/04Y02C10/06
    • The present invention relates to a method which uses secondary amine with a nitrile group, namely 3-(alkyl amino)propionitrile compound, as a carbon dioxide absorbent. More specifically, the present invention relates to an amine based carbon dioxide absorbent with a nitrile functional group using a 3-(alkyl amino)propionitrile compound which is an amine compound with a novel nitrile group obtained by making primary alkyl amine or cycloalkyl amine react with acrylonitrile or methacrylonitrile, or a mixture of the 3-(alkyl amino)propionitrile compound and a secondary alkanolamine as a carbon dioxide absorbent; to a carbon dioxide absorbing method using the same and to a carbon dioxide separating method using the same. The absorbent based on the 3-(alkyl amino)propionitrile compound in accordance to the present invention, the carbon dioxide absorbing method using the same and the carbon dioxide separating method using the same have excellent carbon dioxide absorption capacity; exhibits high carbon dioxide absorption rate and is able to regenerate the absorbent even at a lower temperature when compared to an existing alkanolamine based absorbent, thereby being able to rapidly decrease the total energy consumption required in an absorption process, and being able to prevent collected carbon dioxide from being polluted by moisture and absorbent vapor due to a low regeneration temperature.
    • 本发明涉及使用具有腈基的仲胺,即3-(烷基氨基)丙腈化合物作为二氧化碳吸收剂的方法。 更具体地说,本发明涉及一种具有腈官能团的胺基二氧化碳吸收剂,其使用3-(烷基氨基)丙腈化合物,该3-(烷基氨基)丙腈化合物是通过使伯烷基胺或环烷基胺与 丙烯腈或甲基丙烯腈,或3-(烷基氨基)丙腈化合物和仲链烷醇胺作为二氧化碳吸收剂的混合物; 使用该二氧化碳吸收方法和使用其的二氧化碳分离方法。 基于本发明的3-(烷基氨基)丙腈化合物的吸收剂,使用该吸收剂的二氧化碳吸收方法和使用该吸收剂的二氧化碳分离方法具有优异的二氧化碳吸收能力; 显示出高的二氧化碳吸收率,并且即使在与现有的链烷醇胺类吸收剂相比时也能够在较低温度下再生吸收剂,从而能够快速降低吸收过程中所需的总能量消耗,并且能够防止收集的碳 由于低的再生温度,二氧化物被水分和吸收蒸气污染。