利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

146 条记录 (耗时 0.017 秒)

    SULFUR RECOVERY PLANT TAIL GAS TREATMENT PROCESS
    4.
    发明公开
    SULFUR RECOVERY PLANT TAIL GAS TREATMENT PROCESS 有权
    硫回收装置尾气处理工艺

    公开(公告)号：EP2451561A1

    公开(公告)日：2012-05-16

    申请号：EP10797639.1

    申请日：2010-07-01

    申请人： ExxonMobil Research and Engineering Company

    发明人： IYENGAR, Jagannathan, N. ,  PERRY, David ,  FEDICH, Robert, B.

    IPC分类号： B01D53/14

    CPC分类号： B01D53/1406 ,  B01D53/1468 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/523 ,  B01D2252/103 ,  B01D2252/2025 ,  B01D2252/20405 ,  B01D2252/20426 ,  B01D2252/20484 ,  B01D2252/502 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2258/00 ,  C01B17/0456 ,  C01B17/167 ,  C01B17/60

    摘要： A process for the removal of hydrogen sulfide from a gas stream in which the gas stream is first passed through a Claus unit operating at a sub-stoichiometric ratio (H
    2 S: SO
    2 ) of greater than 2:1 to produce a tail gas stream comprising less than 2000 vppm SO
    2 . This tail gas stream is then treated to increase the sulfur recovery to at least 99.5% by first directly cooling the tail gas stream by contact with water as a coolant, followed by contacting the gas stream with a circulating stream of a dilute, absorbent solution of a severely sterically hindered secondary aminoether alcohol to further cool the gas stream, and then removing the H
    2 S from the stream using a stronger absorbent solution of a severely sterically hindered secondary aminoether alcohol.

    摘要翻译： 一种从气流中除去硫化氢的方法，其中气流首先通过以亚化学计量比（H 2 S:SO 2）大于2:1操作的克劳斯单元，以产生尾气流 包含小于2000vppm的SO 2。然后处理该尾气流，以通过首先通过与作为冷却剂的水接触直接冷却尾气流而将硫回收率提高到至少99.5％，接着使气流与循环 将严重空间位阻的仲氨基醚醇的稀释吸收剂溶液流进一步冷却气流，然后使用强烈的位阻严重的仲氨基醚醇的吸收剂溶液从流中除去H 2S。

    PROCESS FOR THE PRODUCTION OF SULFUR
    5.
    发明授权
    PROCESS FOR THE PRODUCTION OF SULFUR 无效
    一种获得硫

    公开(公告)号：EP1230149B8

    公开(公告)日：2006-05-17

    申请号：EP00970999.9

    申请日：2000-10-20

    申请人： MECS, Inc.

    发明人： BURMASTER, Brian, M. ,  GOAR, B., Gene

    IPC分类号： C01B17/04

    CPC分类号： C01B17/0413 ,  B01D53/1456 ,  B01D53/8615 ,  C01B17/0404 ,  C01B17/0456 ,  Y02C20/20

    摘要： A process is provided for producing elemental sulfur from hydrogen sulfide contained in an acid gas feed stream wherein hydrogen sulfide and sulfur dioxide are reacted in a catalytic only sulfur recovery unit comprising a single catalytic converter containing a Claus catalytic reaction zone. A sulfur dioxide-enriched gas recovered from tail gas treatment is recycled and introduced into the catalytic reaction zone as part of a feed gas mixture that also includes the acid gas feed stream. Temperatures within the catalytic reaction zone are effectively moderated by recycle of tail gas effluent to the converter so that high concentrations of hydrogen sulfide in the acid gas feed stream can be tolerated and improved process flexibility and capacity are realized. A pretreatment process including contacting the acid gas with an aqueous acid wash to reduce the concentration of unsaturated hydrocarbons in the acid gas and inhibit deactivation of the oxidation catalyst is also disclosed.

    PROCEDE D'ELIMINATION DES COMPOSES SOUFRES H 2?S, SO 2?, COS ET/OU CS 2? CONTENUS DANS UN GAZ RESIDUAIRE D'USINE A SOUFRE AVEC RECUPERATION DESDITS COMPOSES SOUS LA FORME DE SOUFRE
    7.
    发明授权
    PROCEDE D'ELIMINATION DES COMPOSES SOUFRES H 2?S, SO 2?, COS ET/OU CS 2? CONTENUS DANS UN GAZ RESIDUAIRE D'USINE A SOUFRE AVEC RECUPERATION DESDITS COMPOSES SOUS LA FORME DE SOUFRE 失效
    方法是硫排气系统拆卸和回收硫化合物H2S，SO2，COS和/或CS2

    公开(公告)号：EP0927142B1

    公开(公告)日：2001-03-28

    申请号：EP98922854.9

    申请日：1998-04-23

    申请人： Elf Exploration Production

    发明人： NOUGAYREDE, Jean

    IPC分类号： C01B17/04

    CPC分类号： C01B17/0456 ,  B01D53/8603 ,  C01B17/0404 ,  Y02P20/584

    摘要： The invention concerns a method consisting in the following steps: The waste gas (6) is catalytically (1) hydrolyzed to form a hydrolyzed gas (15) containing H2S and SO2, and free of COS and CS2. After cooling (17), the hydrolyzed gas is introduced in one (2a) of two CLAUS catalytic zones (2a, 2b) mounted parallel, the other catalytic zone (2b) being for regenerating, then cooling. The regeneration is carried out, in open circuit, with a gas stream (19, 36) drawn from the gas (15) before it is cooled (17), the regeneration gas effluent (24b) being re-injected (29, 20) into the gas (15), between drawing (19) and cooling (17). The cooling of the reactor (2b) is carried out, in open circuit, with a gas stream (11, 36) drawn from the waste gas (6), the cooling gas effluent (24b) being re-introduced (29, 13) into the waste gas (6) between drawing (11) and heating (8).