REMOVAL OF HYDROGEN SULFIDE AND SULFUR RECOVERY FROM A GAS STREAM BY CATALYTIC DIRECT OXIDATION AND CLAUS REACTION
    10.
    发明公开
    REMOVAL OF HYDROGEN SULFIDE AND SULFUR RECOVERY FROM A GAS STREAM BY CATALYTIC DIRECT OXIDATION AND CLAUS REACTION 审中-公开
    催化直接氧化法和反应法去除气体硫中的硫化氢和硫回收

    公开(公告)号:EP3237096A1

    公开(公告)日:2017-11-01

    申请号:EP15817379.9

    申请日:2015-12-23

    申请人: Prosernat

    摘要: The present invention is directed to a process for the removal of hydrogen sulfide and sulfur recovery from a H2S-containing gas stream by catalytic direct oxidation and Claus reaction through two or more serially connected catalytic reactors, wherein a specific control of the oxygen supplement is operated. The control and improvement of the process is obtained by complementing, in each major step of the process, the H2S-containing gas stream by a suitable flow of oxygen, namely before the H2S-containing gas stream enters the Claus furnace, in the first reactor of the process and in the last reactor of the process. Especially in application in a SubDewPoint sulfur recovery process the H2S/SO2 ratio is kept constant also during switch-over of the reactors R1 and R by adding the last auxiliary oxygen containing gas directly upstream the last reactor R so that the H2S/SO2 ratio can follow the signal of the ADA within a few seconds.

    摘要翻译: 本发明涉及通过催化直接氧化和克劳斯反应通过两个或更多个串联连接的催化反应器从含H 2 S的气体物流中除去硫化氢和硫的方法,其中氧气补充物的特定控制是 操作。 该工艺的控制和改进是通过在工艺的每个主要步骤中通过合适的氧流来补充含H 2 S的气流,即在含H 2 S的气流进入克劳斯炉之前,在 该过程的第一个反应器和过程的最后一个反应器。 特别是在SubDewPoint硫回收过程中,通过在最后一个反应器R上游直接添加最后一个辅助含氧气体,在反应器R1和R的转换过程中H 2S / SO 2比例保持恒定,从而H 2S / SO 2比率可以在几秒钟内跟踪ADA的信号。