CO2 separation from low-temperature flue gases
    3.
    发明授权
    CO2 separation from low-temperature flue gases 有权
    二氧化碳与低温烟气分离

    公开(公告)号:US07842126B1

    公开(公告)日:2010-11-30

    申请号:US12241430

    申请日:2008-09-30

    IPC分类号: B01D53/14 B01D53/62

    摘要: Two methods are provide for the separation of carbon dioxide from the flue gases. The first method utilizes a phase-separating moiety dissolved in an aqueous solution of a basic moiety to capture carbon dioxide. The second method utilizes a phase-separating moiety as a suspended solid in an aqueous solution of a basic moiety to capture carbon dioxide. The first method takes advantage of the surface-independent nature of the CO2 absorption reactions in a homogeneous aqueous system. The second method also provides permanent sequestration of the carbon dioxide. Both methods incorporate the kinetic rate enhancements of amine-based scrubbing while eliminating the need to heat the entire amine solution (80% water) in order to regenerate and release CO2. Both methods also take advantage of the low-regeneration temperatures of CO2-bearing mineral systems such as Na2CO3/NaHCO3 and K2CO3/KHCO3.

    摘要翻译: 提供了两种从烟道气中分离二氧化碳的方法。 第一种方法利用溶解在碱性部分的水溶液中的相分离部分捕获二氧化碳。 第二种方法利用相分离部分作为碱性部分的水溶液中的悬浮固体来捕获二氧化碳。 第一种方法利用均相水系统中CO 2吸收反应的表面无关性质。 第二种方法还提供二氧化碳的永久隔离。 这两种方法均纳入胺基洗涤的动力学速率增强,同时消除了加热整个胺溶液(80%水)以再生和释放二氧化碳的需要。 这两种方法还利用含CO 2的矿物体系如Na 2 CO 3 / NaHCO 3和K 2 CO 3 / KHCO 3的低再生温度。