Process for purifying a hydrogen sulfide containing gas
    31.
    发明授权
    Process for purifying a hydrogen sulfide containing gas 失效
    纯化含硫化氢的气体的方法

    公开(公告)号:US4251495A

    公开(公告)日:1981-02-17

    申请号:US64679

    申请日:1979-08-08

    IPC分类号: B01D53/52 C10K1/20 B01D53/34

    摘要: Process for purifying a gas containing hydrogen sulfide, optionally with carbon dioxide, particularly adapted to the purification of gases of relatively low hydrogen sulfide content, e.g. not in excess of 1% of H.sub.2 S by volume, comprising contacting the gas with an absorption mass containing copper, at a temperature of from 250.degree. to 550.degree. C., to absorb the hydrogen sulfide and form copper sulfide; wherein the absorption mass is regenerated by interrupting the contact of the gas with the mass when the mass is at least partially saturated, contacting the mass with an oxidizing gas containing from 0.5 to 5% by volume of oxygen, at a temperature of from 250.degree. to 345.degree. C., to convert the copper sulfide substantially to copper sulfate, and then contacting the mass with a reducing gas containing from 5 to 20% by volume of hydrogen, at a temperature of from 300.degree. to 450.degree. C., to convert the copper sulfate substantially to sulfur dioxide and metallic copper, thereby regenerating the mass, which is then contacted again by the hydrogen sulfide containing gas.

    摘要翻译: 任选地用二氧化碳净化含有硫化氢的气体的方法,特别适用于净化相对低的硫化氢含量的气体,例如, 不超过体积的H 2 S的1%,包括在250-550℃的温度下使气体与含有铜的吸收物质接触以吸收硫化氢并形成硫化铜; 其中吸收质量通过在质量至少部分饱和时中断气体与质量的接触来再生,该物质与含有0.5至5体积%氧气的氧化气体在250℃的温度下接触 至345℃,将硫化铜基本上转化为硫酸铜,然后将该物质与含有5〜20体积%氢气的还原气体在300〜450℃的温度下接触至 将硫酸铜基本上转化为二氧化硫和金属铜,从而再生质量,然后再通过含硫化氢的气体接触。