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    • 1. 发明授权
    • Method for sequestering CO2 and SO2 utilizing a plurality of waste streams
    • 利用多种废物流隔离二氧化碳和二氧化硫的方法
    • US07922792B1
    • 2011-04-12
    • US12046714
    • 2008-03-12
    • Yee SoongDouglas E. AllenChen Zhu
    • Yee SoongDouglas E. AllenChen Zhu
    • B01D53/14
    • B01D53/62B01D53/1456B01D53/60B01D2252/10B01D2255/2045B01D2255/2047B01D2257/302B01D2257/404B01D2257/504B01D2258/025B01D2258/0283C02F2101/101C02F2103/18Y02C10/04Y02C10/06
    • A neutralization/sequestration process is provided for concomitantly addressing capture and sequestration of both CO2 and SO2 from industrial gas byproduct streams. The invented process concomitantly treats and minimizes bauxite residues from aluminum production processes and brine wastewater from oil/gas production processes. The benefits of this integrated approach to coincidental treatment of multiple industrial waste byproduct streams include neutralization of caustic byproduct such as bauxite residue, thereby decreasing the risk associated with the long-term storage and potential environmental of storing caustic materials, decreasing or obviating the need for costly treatment of byproduct brines, thereby eliminating the need to purchase CaO or similar scrubber reagents typically required for SO2 treatment of such gasses, and directly using CO2 from flue gas to neutralize bauxite residue/brine mixtures, without the need for costly separation of CO2 from the industrial byproduct gas stream by processes such as liquid amine-based scrubbers.
    • 提供了中和/封存过程,用于同时解决来自工业气体副产物流的二氧化碳和二氧化硫的捕集和封存。 本发明的方法同时处理和最小化来自石油/天然气生产过程的铝生产工艺和盐水废水的铝土矿残渣。 这种综合方法对多种工业废物副产物流的巧合处理的好处包括中和苛性副产物如铝土矿残渣,从而降低与长期储存相关的风险和储存苛性碱材料的潜在环境,减少或消除对 昂贵的副产品盐水处理,从而不需要购买通常用于这种气体的SO 2处理所需的CaO或类似的洗涤剂,并且直接使用来自烟道气的二氧化碳来中和铝土矿残渣/盐水混合物,而不需要昂贵的CO 2分离 工业副产物气流通过诸如液体胺类洗涤器的方法。