PROCESS FOR THE SELECTIVE OXIDATION OF HYDROGEN SULPHIDE
    2.
    发明公开
    PROCESS FOR THE SELECTIVE OXIDATION OF HYDROGEN SULPHIDE 审中-公开
    过程氢气与选择氧化

    公开(公告)号:EP2362849A1

    公开(公告)日:2011-09-07

    申请号:EP09756762.2

    申请日:2009-11-26

    IPC分类号: C01B17/04 B01D53/86

    摘要: The present invention provides a process for the selective oxidation of hydrogen sulphide in a hydrogen sulphide-containing hydrocarbon and/or hydrogen feed gas to elemental sulphur, wherein the hydrogen sulphide- containing hydrocarbon and/or hydrogen feed gas and a sulphur dioxide-containing gas are supplied to a reaction zone comprising at least one catalytic zone comprising a TiO
    2 -comprising catalyst, to form elemental sulphur and a gaseous stream depleted in hydrogen sulphide, in which process the Tiθ2-comprising catalyst of the at least one catalytic zone is contacted with hydrogen sulphide and/or sulphur dioxide at elevated pressure and at a temperature in the range of from 120 and below 160 °C, under such conditions that the elemental sulphur formed is essentially in liquid form, and wherein at least part of the sulphur dioxide comprising gas is obtained by combusting elemental sulphur to obtain a mixture of sulphur dioxide and nitrogen and concentrating the mixture of sulphur dioxide to increase the sulphur dioxide concentration.

    PROCESS FOR PRODUCING A GAS STREAM DEPLETED OF HYDROGEN SULPHIDE
    3.
    发明公开
    PROCESS FOR PRODUCING A GAS STREAM DEPLETED OF HYDROGEN SULPHIDE 审中-公开
    生产含硫化氢的气流的方法

    公开(公告)号:EP1866061A1

    公开(公告)日:2007-12-19

    申请号:EP06725337.7

    申请日:2006-03-28

    IPC分类号: B01D53/86 C01B17/04

    摘要: The invention provides a process for producing a gas stream depleted of H2S from a feed gas stream comprising H2S, the process comprising the steps of: (a) selectively oxidizing H2S by supplying the feed gas stream comprising H2S, an inert liquid medium and a molecular-oxygen comprising gas stream to a reaction zone comprising at least one catalytic zone comprising an oxidation catalyst and contacting the oxidation catalyst of each catalytic zone with the feed gas stream and/or the molecular-oxygen comprising gas stream in the presence of inert liquid medium at a temperature in the range of from 120 to 160 °C to form elemental sulphur and the gas stream depleted of H2S, under such conditions that the elemental sulphur formed is essentially in liquid form and is removed from the reaction zone with inert liquid medium to obtain a liquid stream comprising inert liquid medium and essentially liquid elemental sulphur; (b) optionally separating the liquid stream obtained in step (a) into a first liquid phase enriched in inert liquid medium and a second liquid phase enriched in liquid elemental sulphur; (c) combusting at least part of the liquid stream obtained in step (a) or at least part of the second liquid phase obtained in step (b) to form a fluid stream comprising sulphur dioxide.

    摘要翻译: 本发明提供了一种从包含H 2 S的进料气流生产贫含H 2 S的气流的方法,所述方法包括以下步骤:(a)通过供应包含H 2 S,惰性液体介质和分子的进料气流来选择性氧化H 2 S 将包含氧气的气流送入反应区,该反应区包含至少一个包含氧化催化剂的催化区,并在惰性液体介质存在下使每个催化区的氧化催化剂与进料气流和/或含分子氧气流接触 在120-160℃的温度下形成元素硫和贫含H2S的气流,在这样的条件下,形成的元素硫基本上为液体形式,并且用惰性液体介质从反应区除去 获得包含惰性液体介质和基本上液体元素硫的液体流; (b)任选地将步骤(a)中获得的液体物流分离成富含惰性液体介质的第一液相和富含液体元素硫的第二液相; (c)燃烧步骤(a)中获得的至少一部分液体物流或步骤(b)中获得的至少部分第二液体物流以形成包含二氧化硫的流体物流。

    RECOVERY OF SULFUR FROM A HYDROGEN SULFIDE CONTAINING GAS
    4.
    发明公开
    RECOVERY OF SULFUR FROM A HYDROGEN SULFIDE CONTAINING GAS 有权
    硫的从含有氢气回收

    公开(公告)号:EP1708964A2

    公开(公告)日:2006-10-11

    申请号:EP05704553.6

    申请日:2005-01-14

    IPC分类号: C01B17/04

    摘要: The invention relates to a process for the recovery of sulfur from a hydrogen sulfide containing gas, comprising (a) Oxidizing part of the hydrogen sulfide in a gaseous stream with oxygen or an oxygen containing gas in an oxidation stage to sulfur dioxide, and thereafter reacting the major part of the remaining hydrogen sulfide and the major part of sulfur dioxide to elemental sulfur and water, (b) reacting the product gas of oxidation stage a) in at least three catalytic reaction systems and c. selectively oxidizing H2S in the gas leaving stage b (in particular leaving) the (last) sub-dewpoint Claus reactor) to elemental sulfur, preferably employing for this purpose a catalytic stage including a selective oxidation catalyst, which is substantially insensitive to the presence of water vapor in the gas stream and is ineffective in promoting the establishment of the Claus equilibrium: 2 H2S + SO2 2 H2O + 3/n Sn.

    PROCESS FOR THE SELECTIVE OXIDATION OF HYDROGEN SULFHIDE
    5.
    发明公开
    PROCESS FOR THE SELECTIVE OXIDATION OF HYDROGEN SULFHIDE 有权
    过程氢气与选择氧化

    公开(公告)号:EP1667933A1

    公开(公告)日:2006-06-14

    申请号:EP04787232.0

    申请日:2004-09-28

    IPC分类号: C01B17/00 C01B17/04

    CPC分类号: C01B17/0469

    摘要: A process for the selective oxidation of hydrogen sulphide in a hydrogen sulphide containing feed gas to elemental sulphur, wherein the hydrogen sulphide containing feed gas (3), an inert liquid medium (5), and a molecular-Oxygen containing gas (4) are supplied to a reaction zone (1) comprising at least one catalytic zone (2) comprising an oxidation catalyst to form elemental sulphur and a gaseous stream depleted in hydrogen sulphide (8), in which process the oxidation catalyst. of each catalytic zone (2) is contacted with hydrogen sulphide and/or molecular-­oxygen in the presence of inert liquid medium at a temperature in the range of from 120 to 160 oC, under such conditions that the elemental sulphur formed is essentially in liquid form and is removed from the reaction zone with the inert liquid medium.

    RECOVERY OF SULFUR FROM A HYDROGEN SULFIDE CONTAINING GAS
    7.
    发明授权
    RECOVERY OF SULFUR FROM A HYDROGEN SULFIDE CONTAINING GAS 有权
    硫的从含有氢气回收

    公开(公告)号:EP1708964B1

    公开(公告)日:2011-03-02

    申请号:EP05704553.6

    申请日:2005-01-14

    IPC分类号: C01B17/04

    摘要: The invention relates to a process for the recovery of sulfur from a hydrogen sulfide containing gas, comprising (a) Oxidizing part of the hydrogen sulfide in a gaseous stream with oxygen or an oxygen containing gas in an oxidation stage to sulfur dioxide, and thereafter reacting the major part of the remaining hydrogen sulfide and the major part of sulfur dioxide to elemental sulfur and water, (b) reacting the product gas of oxidation stage a) in at least three catalytic reaction systems and c. selectively oxidizing H2S in the gas leaving stage b (in particular leaving) the (last) sub-dewpoint Claus reactor) to elemental sulfur, preferably employing for this purpose a catalytic stage including a selective oxidation catalyst, which is substantially insensitive to the presence of water vapor in the gas stream and is ineffective in promoting the establishment of the Claus equilibrium: 2 H2S + SO2 2 H2O + 3/n Sn.

    PROCESS FOR PREPARING A SULPHUR CEMENT PRODUCT
    8.
    发明公开
    PROCESS FOR PREPARING A SULPHUR CEMENT PRODUCT 有权
    用于生产硫水泥产品

    公开(公告)号:EP1863744A1

    公开(公告)日:2007-12-12

    申请号:EP06708819.5

    申请日:2006-03-29

    IPC分类号: C04B28/36 C01B17/04

    摘要: The invention provides a process for preparing a sulphur cement product comprising the following steps: (a) selectively oxidising hydrogen sulphide to elemental sulphur by contacting, in a reaction zone, a hydrogen sulphide containing feed gas and a molecular-oxygen containing gas with a particulate oxidation catalyst under selective oxidation conditions; (b) discharging a stream comprising liquid and/or solid elemental sulphur and particulate oxidation catalyst from the reaction zone; (c) admixing the stream comprising elemental sulphur and particulate oxidation catalyst with at least any one of elemental sulphur, a sulphur cement filler, a sulphur cement modifier, or aggregate at a temperature at which sulphur is molten; (d) solidifying the mixture obtained in step (c) by cooling it to a temperature below the melting temperature of sulphur to obtain the sulphur cement product. The invention further provides the use of a stream comprising elemental sulphur and particulate oxidation catalyst for preparing a sulphur cement product, which stream is obtained in selective oxidation step (a) of such process.

    Recovery of sulfur from a hydrogen sulfide containing gas
    10.
    发明公开
    Recovery of sulfur from a hydrogen sulfide containing gas 审中-公开
    天然气(Wiederegewinnung von Schwefel aus einem schwefelwasserstoffenthaltenden Gas

    公开(公告)号:EP1555241A1

    公开(公告)日:2005-07-20

    申请号:EP04075104.2

    申请日:2004-01-16

    IPC分类号: C01B17/04

    摘要: The invention relates to a process for the recovery of sulfur from a hydrogen sulfide containing gas, comprising:

    a. Oxidizing part of the hydrogen sulfide in a gaseous stream with oxygen or an oxygen containing gas in an oxidation stage to sulfur dioxide, and thereafter reacting the major part of the remaining hydrogen sulfide and the major part of sulfur dioxide to elemental sulfur and water,
    b. reacting the product gas of oxidation stage a) in at least three catalytic reaction systems
    and
    c. selectively oxidizing H 2 S in the gas leaving stage b (in particular leaving) the (last) sub-dewpoint Claus reactor) to elemental sulfur, preferably employing for this purpose a catalytic stage including a selective oxidation catalyst, which is substantially insensitive to the presence of water vapor in the gas stream and is ineffective in promoting the establishment of the Claus equilibrium: 2 H 2 S + SO 2 ⇔ 2 H 2 O + 3/n S n .

    摘要翻译: 本发明涉及从含硫化氢的气体中回收硫的方法,包括:a。 在氧化阶段将氧气或含氧气体的气态物流中的一部分硫化氢氧化成二氧化硫,然后将剩余硫化氢和主要部分二氧化硫的主要部分与元素硫和水反应,b 。 使氧化阶段a)的产物气体在至少三个催化反应体系中反应,c。 选择性地将离开阶段b的气体(特别是离开)(最后)次级露点克劳斯反应器)中的H 2 S氧化成元素硫,优选为此目的使用包括选择性氧化催化剂的催化级,其对于存在 气流中的水汽,并且促进了克劳斯平衡的建立无效:2 H2S + SO2 <2> H2O + 3 / n Sn。