利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

30 条记录 (耗时 0.011 秒)

    A catalytic composition for oxidation-reduction process for effecting the catalytic oxidation of hydrogen sulfide in gas strains
    7.
    发明公开
    A catalytic composition for oxidation-reduction process for effecting the catalytic oxidation of hydrogen sulfide in gas strains 有权
    用于制备催化剂组合物的氧化/还原过程硫化氢的气体流中的催化氧化法

    公开(公告)号：EP1656992A1

    公开(公告)日：2006-05-17

    申请号：EP04105674.8

    申请日：2004-11-10

    申请人： Research Institute of Petroleum Industry

    发明人： Jenab, Masih Hosseini

    IPC分类号： B01J31/18 ,  B01D53/52 ,  C07F15/02

    CPC分类号： B01J31/1805 ,  B01D53/52 ,  B01D53/8612 ,  B01D2251/90 ,  B01D2251/902 ,  B01J31/0202 ,  B01J31/2213 ,  B01J2231/70 ,  B01J2531/0252 ,  B01J2531/842 ,  C01B17/05 ,  Y02P20/152

    摘要： The present invention provides a catalytic composition for use in an oxidation-reduction process for effecting the catalytic oxidation of hydrogen sulfide in gas strains comprising a water soluble iron compound, a mixture of two chelating agents, whereas both of the chelating agents are amine chelating agents, and at least one stabilizer. Further the present invention provides a process for preparing the catalytic composition according to the invention, said composition being advantageous in effecting the catalytic oxidation of hydrogen sulfide in gas strains, comprising the steps of preparing a mixture of a water soluble iron compound and a stabilizing agent in an aqueous system, while the pH of the system is pH ≤ 2, adding a mixture of two chelating agents I and II, whereas both of the chelating agents are amine chelating agents to the mixture of the water soluble iron compound and a stabilizing agent, adding sufficient aqueous amine chelating agents II to this combined mixture to adjust a pH of 7 to 10, and heating this mixture of to get the desired concentration of chelated iron in the mixture.
    Therefore, the procedure of the present invention provides an alkaline aqueous chelated iron solution useful in oxidation-reduction processes for effecting the catalytic oxidation of hydrogen sulfide in gas strains and provides, as mentioned before, (1) no foaming and no sludge, (2) a minimum decomposition of the chelant during the reaction, (3) a homogeneous and very concentrated catalytic iron chelate reagent with a possible iron concentration of >40 wt% and (4) a minimum rate of absorption of CO 2 into the solution and maximum rate of stripping of CO 2 by air bubbling.

    摘要翻译： 本发明提供一种用于在氧化还原处理中使用的催化剂组合物用于实现在气体菌株硫化氢的催化氧化包含水溶性铁化合物，两种螯合剂的混合物，而这两个螯合剂是胺螯合剂 和至少一种稳定剂。 此外，本发明提供了一种用于制备催化组合物雅丁到本发明，所述组合物是在实现在气体菌株硫化氢的催化氧化，它包括制备水溶性铁化合物的混合物的步骤有利和稳定剂 在wässrige系统，同时该系统的pH为‰¤2，加入两种螯合剂的混合物I和II，而两种螯合剂的是胺螯合剂的水溶性铁化合物的混合物和稳定 剂，加入足量的wässrige胺螯合剂II此合并的混合物以调节pH为7至10，并且加热的该混合物以获得在混合物中螯合的铁的所需的浓度。 因此，本发明的方法提供wässrige在氧化 - 还原过程中有用螯合铁溶液至碱性，用于实现硫化氢的催化氧化气体菌株和提供，如前面提到的，（1）不起泡和没有污泥，（2 ）在反应过程中螯合剂的最小分解，（3）均匀且非常浓催化铁螯合物试剂具有> 40％（重量）的可能的铁浓度和（4）的CO 2吸收的最小速率到溶液中和最大 通过空气鼓泡汽提的CO 2的速率。