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    REMOVAL OF HYDROGEN SULFIDE AND SULFUR RECOVERY FROM A GAS STREAM BY CATALYTIC DIRECT OXIDATION AND CLAUS REACTION
    3.
    发明申请
    REMOVAL OF HYDROGEN SULFIDE AND SULFUR RECOVERY FROM A GAS STREAM BY CATALYTIC DIRECT OXIDATION AND CLAUS REACTION 审中-公开
    通过催化直接氧化和反应，从气体流中除去硫化氢和硫回收

    公开(公告)号：WO2016102652A1

    公开(公告)日：2016-06-30

    申请号：PCT/EP2015/081129

    申请日：2015-12-23

    Applicant: PROSERNAT

    Inventor： HEISEL, Michael ,  MARES, Benoit

    IPC: B01D53/52 ,  B01D53/86 ,  B01D53/90 ,  C01B17/04 ,  C10L3/10

    CPC classification number: B01D53/8612 ,  B01D53/52 ,  B01D53/869 ,  B01D53/90 ,  B01D2251/11 ,  B01D2255/20707 ,  B01D2255/2092 ,  B01D2257/30 ,  B01D2257/308 ,  B01D2258/05 ,  C01B17/0413 ,  C01B17/0426 ,  C01B17/0447 ,  C10L3/103 ,  C10L2290/58 ,  C10L2290/60

    Abstract: The present invention is directed to a process for the removal of hydrogen sulfide and sulfur recovery from a H 2 S-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 H 2 S-containing gas stream by a suitable flow of oxygen, namely before the H 2 S-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 H 2 S/SO 2 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 H 2 S/SO 2 ratio can follow the signal of the ADA within a few seconds.

    Abstract translation: 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的催化反应器从含H2S的气流中除去硫化氢和硫回收的方法，其中操作氧补充物的具体控制 。 通过在该方法的每个主要步骤中，通过合适的氧气流，即在含H2S的气流进入克劳斯炉之前，在第一反应器中补充含H 2 S的气流，来获得该方法的控制和改进 的过程和最后一个反应堆的过程。 特别是在SubDewPoint硫回收过程中，在反应器R1和R的切换期间，通过在最后的反应器R的正上游加入最后的辅助含氧气体，使得H2S / SO2的比例可以保持恒定，使得H 2 S / SO 2比可以 在几秒钟内跟随ADA的信号。

    Removal of aromatic hydrocarbons from lean acid gas feed for sulfur recovery
    4.
    发明授权
    Removal of aromatic hydrocarbons from lean acid gas feed for sulfur recovery 有权

    公开(公告)号：US10543452B2

    公开(公告)日：2020-01-28

    申请号：US15570645

    申请日：2016-04-28

    Applicant: PROSERNAT

    Inventor： Emile Fillatre ,  Gauthier Perdu ,  Benoit Mares

    IPC: B01D53/14 ,  C01B17/04 ,  C10L3/10

    Abstract: The present invention is directed to a process for the removal of aromatic hydrocarbons from a lean acid gas containing less than 20 mol. % of H2S, comprising: a) contacting the lean acid gas stream (1) with a H2S-selective liquid absorbent solution (29) in a first absorption zone (2) to produce a gas stream depleted in H2S (3) and an absorbent solution enriched in H2S (4), b) introducing the absorbent solution (4) into a non-thermic stripping zone (8) where it is contacted with a stripping gas stream (7) to obtain an absorbent solution depleted in C4+ aliphatic and aromatic hydrocarbons (9) and a stripping gas stream enriched in aromatic and C4+ aliphatic hydrocarbons (10), c) contacting the stripping gas stream (10) obtained in step b) with a H2S-selective liquid absorbent solution (28) in a second absorption zone (12) to obtain a stripping gas stream depleted in H2S (13), and an absorbent solution enriched in H2S (14) d) introducing the absorbent solution (9) obtained in step b) into a desorption zone (16) wherein the H2S-selective liquid absorbent solution (17) is recovered and a lean acid gas is produced.

    PROCESS FOR REMOVING SULFUR COMPOUNDS FROM A GAS WITH HYDROGENATION AND DIRECT OXIDATION STEPS
    9.
    发明申请
    PROCESS FOR REMOVING SULFUR COMPOUNDS FROM A GAS WITH HYDROGENATION AND DIRECT OXIDATION STEPS 审中-公开
    从具有加氢和直接氧化步骤的气体中除去硫化合物的方法

    公开(公告)号：WO2016142528A1

    公开(公告)日：2016-09-15

    申请号：PCT/EP2016/055323

    申请日：2016-03-11

    Applicant: PROSERNAT

    Inventor： MARES, Benoit

    IPC: B01D53/86 ,  C01B17/04

    CPC classification number: B01D53/8612 ,  B01D53/8615 ,  B01D2255/20707 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20753 ,  B01D2255/20761 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/20784 ,  B01D2255/2092 ,  B01D2255/65 ,  B01D2255/702 ,  B01D2255/9032 ,  B01D2255/904 ,  B01D2257/306 ,  B01D2257/308 ,  C01B17/0439 ,  C01B17/0469 ,  Y02P20/584

    Abstract: The invention is a process for removing sulfur from a gas containing sulfur compounds as H2S, SO2, COS, CS2..., in a quantity of up to 15%wt; it particularly concerns gases emanating from the Claus process. The process comprises a first hydrogenation of the sulfur compounds into H2S, the hydrogenation gas being used to regenerate a deactivated bed of oxidation catalyst, both being carried out at 200-500° C. After sulfur removal, the resulting gas undergoes a second hydrogenation step and then a direct oxidation step, said step being operated under the dew point of sulfur to trap the formed sulfur in the catalyst. In the further cycle, the gas streams are switched so as to regenerate the catalyst in run which is deactivated. In a preferred embodiment, the process operates in at least 2 identical reactors, each containing a bed of hydrogenation catalyst followed (in the sense of the flow of gas) by a direct oxidation catalyst bed containing an embedded heat exchanger.

    Abstract translation: 本发明是一种从硫含量高达15％wt的硫化合物作为H 2 S，SO 2，COS，CS 2 ...的气体除去硫的方法; 它特别涉及从克劳斯流程发出的气体。 该方法包括将硫化合物首先氢化为H 2 S，氢化气体用于再生无氧化床催化剂，二氧化碳催化剂在200-500℃下进行。除硫后，所得气体经历第二氢化步骤 然后进行直接氧化步骤，所述步骤在硫的露点下操作以捕集形成的硫在催化剂中。 在进一步的循环中，气流被切换，从而在运行中再生催化剂，其被去活化。 在优选的实施方案中，该方法在至少两个相同的反应器中操作，每个反应器含有通过包含嵌入式热交换器的直接氧化催化剂床（随着气体流动）的氢化催化剂床。

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