Method and apparatus for converting sulfur dioxide in gas to sulfur
    9.
    发明授权
    Method and apparatus for converting sulfur dioxide in gas to sulfur 失效
    将气体中的二氧化硫转化为硫的方法和装置

    公开(公告)号:US4341753A

    公开(公告)日:1982-07-27

    申请号:US184759

    申请日:1980-09-08

    IPC分类号: C01B17/04

    摘要: There is provided a method for converting sulfur dioxide in an exhaust gas to sulfur, which comprises the reduction step of reducing sulfur dioxide in an exhaust gas containing water vapor to hydrogen sulfide in the presence of carbon, a part of the exhaust gas is caused to bypass the reduction step and the remainder of the exhaust gas is fed to the reduction step to convert sulfur dioxide in the exhaust gas to hydrogen sulfide; the gas from the reduction step is mixed with the exhaust gas bypassing the reduction step while controlling the amount of the bypassing exhaust gas so that the ratio of hydrogen sulfide to sulfur dioxide in the mixed gas is maintained at 2; the mixed gas is fed to the Claus reaction step; and the Claus reaction step of reacting hydrogen sulfide formed at the reduction step with sulfur dioxide to convert hydrogen sulfide to sulfur.

    摘要翻译: 提供了一种将废气中的二氧化硫转化为硫的方法,其包括在碳存在下将含有水蒸汽的废气中的二氧化硫还原为硫化氢的还原步骤,将一部分废气引起 旁路还原步骤,将剩余的废气送入还原步骤,将废气中的二氧化硫转化为硫化氢; 来自还原步骤的气体与绕过还原步骤的排气混合,同时控制旁路废气的量,使得混合气体中的硫化氢与二氧化硫的比例保持在2; 将混合气体送入Claus反应步骤; 和在还原步骤中形成的硫化氢与二氧化硫反应以将硫化氢转化为硫的Claus反应步骤。