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    • 3. 发明申请
    • ABSORBENT SYSTEM FOR CARBON DIOXIDE CAPTURE
    • 吸收二氧化碳捕集系统
    • WO2010053377A1
    • 2010-05-14
    • PCT/NO2009/000383
    • 2009-11-04
    • SINVENT ASSVENDSEN, Hallvard F.MEJDELL, ThorHOFF, Karl AndersJULIUSSEN, OlavARONU, Ugochukwu, E.
    • SVENDSEN, Hallvard F.MEJDELL, ThorHOFF, Karl AndersJULIUSSEN, OlavARONU, Ugochukwu, E.
    • B01D53/14B01D53/40B01D53/62
    • B01D53/1493B01D2257/504Y02C10/04Y02C10/06
    • This invention relates to a liquid absorbent system for capture of carbon dioxide present in gases which comprises of contacting a CO2-containing gas with an aqueous solution containing an amine salt of an amino acid of the general formula [1]. wherein Am is an amino acid backbone containing 1 to 4 carbon atoms and at least one amine group. The amino acid is reacted with an amine with at least one amine functionality and where at least one of R1, R2 and R3 is an alkyl, alkanol, or amine group. The absorbent system is the product of neutralizing stoichiometric proportions of an amino acid with an organic base, the amine; wherein excess amine could be used as promoter. This absorbent system improves carbon dioxide removal efficiency due to its higher CO2 removal ability per cycle when compared with conventional amine and absorbent from organic acid neutralized with inorganic base. It also does not exhibit solvent vaporisation loss because the absorbent is in salt form, thus its ionic nature practically does not allow solvent vapour pressure.
    • 本发明涉及用于捕获气体中存在的二氧化碳的液体吸收系统,其包括使含CO 2的气体与含有通式[1]的氨基酸的胺盐的水溶液接触。 其中Am是含有1至4个碳原子和至少一个胺基团的氨基酸主链。 氨基酸与具有至少一个胺官能团的胺反应,并且其中R 1,R 2和R 3中的至少一个是烷基,链烷醇或胺基。 吸收系统是氨基酸与有机碱中和化学计量比例的产物,胺; 其中过量的胺可用作促进剂。 与常规胺和与无机碱中和的有机酸的吸收剂相比,由于其每循环的CO 2去除能力更高,因此该吸收体系提高了二氧化碳去除效率。 由于吸收剂是盐形式,因此其也不表现出溶剂蒸发损失,因此其离子性质实际上不允许溶剂蒸气压。