Method of desulfurizing waste gases containing sulfur dioxide
    1.
    发明授权
    Method of desulfurizing waste gases containing sulfur dioxide 失效
    含二氧化硫废气的脱硫方法

    公开(公告)号:US4442083A

    公开(公告)日:1984-04-10

    申请号:US439257

    申请日:1982-11-04

    CPC分类号: C01B17/05 B01D53/501

    摘要: Sulfur dioxide (SO.sub.2) is absorbed from waste gases by absorbing SO.sub.2 in an aqueous absorbent comprising soluble sulfite in an absorber; stripping the SO.sub.2 from the absorbent; absorbing the stripped SO.sub.2 in a separate absorbent for the SO.sub.2 ; and reacting the thus absorbed SO.sub.2 in a liquid Claus reactor forming sulfur. In a preferred embodiment, the gas from the stripping step is subjected to a condensation step in a heat exchanger boiler where steam ingoing to the stripper is generated.

    摘要翻译: 二氧化硫(SO2)通过在吸收剂中包含可溶性亚硫酸盐的含水吸收剂中吸收SO2而从废气中吸收; 从吸收剂中去除SO2; 在单独的SO2吸收剂中吸收汽提的SO2; 并使由此吸收的SO 2在形成硫的液体克劳斯反应器中反应。 在优选的实施方案中,来自汽提步骤的气体在其中产生蒸汽进入蒸汽器的蒸汽热交换器锅炉中进行冷凝步骤。