会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • ABSORBENT SYSTEM AND METHOD FOR CAPTURING CO2 FROM GAS STREAM
    • 吸收系统和从气体流中吸收二氧化碳的方法
    • WO2015190936A1
    • 2015-12-17
    • PCT/NO2015/050106
    • 2015-06-12
    • SINTEF TTO AS
    • ARONU, Ugochukwu, E.KIM, InnaHOFF, Karl AndersEINBU, Aslak
    • B01D53/14B01D53/40B01D53/48B01D53/50B01D53/52B01D53/62B01D53/73B01D53/75B01D53/77B01D53/78B01D53/80B01D53/96C01B31/20C10K1/12C10K1/14B01D53/18
    • B01D53/1425B01D53/1475B01D53/1493B01D2252/20421B01D2252/20426B01D2252/20431B01D2252/20484B01D2252/20489B01D2252/20494B01D2252/504C10K1/143Y02C10/04Y02C10/06Y02P20/152
    • The present invention relates to an absorbent, an absorbent system and a process for removing acidic gas such as CO 2 from exhaust gases from fossil fuel fired power stations, from natural gas streams, from blast furnace oven off-gases in iron/steel plants, from cement plant exhaust gas and from reformer gases containing CO 2 in mixtures with H 2 S and COS. The liquid absorbent, a mixture of amine and amino acid salt is contacted with a CO 2 containing gas in an absorber and CO 2 in the gas stream is absorbed into the liquid. The absorbed CO 2 forms more than one type of solid precipitate in the liquid at different absorption stages. In a first absorption stage solid precipitate of amine bicarbonate is formed and is withdrawn as slurry from the bottom of a first absorber section. In a second absorption stage solid precipitate of alkali metal bicarbonate is formed and withdrawn as slurry at the bottom of a second absorber section. The slurry withdrawn from the first absorption section is heated to dissolve the precipitate with CO 2 release in an amine flash regeneration tank. The slurry from the second precipitation stage is withdrawn from the bottom of the second absorber section and sent to a regenerator for desorption with CO 2 release. The lean amine and amino acid salt mixture from the flash regenerator and desorber are mixed and returned to the top of the absorber. This absorbent system improves carbon dioxide removal efficiency due to its higher CO 2 removal ability per cycle when compared with conventional amine, absorbent from organic acid neutralized with inorganic base and carbonate based absorbent system. It exhibits less solvent vaporization loss because part of the absorbent is in salt form.
    • 本发明涉及一种吸收剂,吸收剂系统和从化石燃料发电站的废气中除去二氧化碳等酸性气体的方法,从天然气流,铁/炼铁厂的高炉炉废气中除去 水泥厂废气和含H 2 S和COS混合物中的二氧化碳的重整器气体,吸收剂,胺和氨基酸盐的混合物与吸收器中的含CO 2气体接触,气流中的CO 2被吸收到液体中 。 吸收的CO2在不同吸收阶段在液体中形成多于一种类型的固体沉淀物。 在第一吸收阶段,形成固体沉淀的碳酸氢铵,并从第一吸收段的底部以淤浆的形式排出。 在第二吸收阶段,形成碱金属碳酸氢盐的固体沉淀物并在第二吸收段的底部作为浆料取出。 将从第一吸收部分排出的浆料加热,以便在胺闪蒸再生罐中释放CO 2使沉淀物溶解。 来自第二沉淀阶段的浆料从第二吸收段的底部排出并送往再生器,以释放CO 2来解吸。 将来自闪蒸再生器和解吸器的贫胺和氨基酸盐混合物混合并返回到吸收器的顶部。 与使用无机碱和碳酸盐类吸收剂体系中和的有机酸的吸收剂相比,与常规胺相比,这种吸收体系可以提高二氧化碳去除效率。 它表现出较少的溶剂蒸发损失,因为吸收剂的一部分是盐形式。