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    PROCESS AND APPARATUS FOR SULPHURIC ACID PRODUCTION
    1.
    发明申请
    PROCESS AND APPARATUS FOR SULPHURIC ACID PRODUCTION 审中-公开

    公开(公告)号：WO2011147538A3

    公开(公告)日：2011-12-01

    申请号：PCT/EP2011/002379

    申请日：2011-05-13

    Applicant: HALDOR TOPSØE A/S ,  MØLLERHØJ, Martin ,  LYKKE, Mads ,  THELLEFSEN, Morten ,  SCHOUBYE, Peter

    Inventor： MØLLERHØJ, Martin ,  LYKKE, Mads ,  THELLEFSEN, Morten ,  SCHOUBYE, Peter

    IPC: C01B17/765

    Abstract: A process for the conversion of sulphur dioxide contained in a feed gas to sulphur trioxide, comprising the steps of a) alternatingly providing a first feed gas containing a high concentration of sulphur dioxide and a second feed gas containing a low concentration of sulphur dioxide as a process gas, b) preheating the process gas by heat exchange with a heat exchange medium, c) reacting the process gas in the presence of a catalytically active material in a catalytic reaction zone, d) converting at least in part the sulphur dioxide of the process gas into sulphur trioxide contained in a product gas in the catalytic reaction zone, e) cooling the product gas by contact with a heat exchange medium, wherein a thermal buffer zone is provided in relation to one of said process steps, providing thermal energy produced during super-autothermal operation for heating the process gas during sub-autothermal operation.

    SUPPORT FOR A HELICAL COIL INSERTED IN A HEAT EXCHANGER TUBE
    2.
    发明申请
    SUPPORT FOR A HELICAL COIL INSERTED IN A HEAT EXCHANGER TUBE 审中-公开
    支持在热交换器管中插入的螺旋线圈

    公开(公告)号：WO2010069461A1

    公开(公告)日：2010-06-24

    申请号：PCT/EP2009/008548

    申请日：2009-12-01

    Applicant: HALDOR TOPSØE A/S ,  SCHOUBYE, Peter ,  THELLEFSEN, Morten

    Inventor： SCHOUBYE, Peter ,  THELLEFSEN, Morten

    IPC: F28F21/00 ,  F28F1/40 ,  F28F13/12

    CPC classification number: F28F21/006 ,  B01D5/0063 ,  F28F1/40 ,  F28F13/12 ,  F28F2275/12

    Abstract: A helical coil is supported inside a heat exchanger tube by at least one inside protrusion on the inside wall of the tube, the at least one protrusion supports the helical coil on a contact point of the helical coil against downwards movement in the tube and supports the helical coil on the end point of the helical coil against rotational movement in a first rotational direction relative to the tube.

    Abstract translation: 螺旋线圈通过管的内壁上的至少一个内部突起在热交换器管内支撑，所述至少一个突起将螺旋线圈支撑在螺旋线圈的接触点上，以防止管中的向下运动，并且支撑 在螺旋线圈的端点处的螺旋线圈抵抗相对于管的第一旋转方向的旋转运动。

    PROCESS FOR CATALYTIC REDUCTION OF NOX BY AMMONIA IN PRESENCE OF SO3 IN THE GAS
    3.
    发明申请
    PROCESS FOR CATALYTIC REDUCTION OF NOX BY AMMONIA IN PRESENCE OF SO3 IN THE GAS 审中-公开
    氨气在气体中存在的NOX催化还原过程

    公开(公告)号：WO2006103040A1

    公开(公告)日：2006-10-05

    申请号：PCT/EP2006/002784

    申请日：2006-03-27

    Applicant: HALDOR TOPSØE A/S ,  SCHOUBYE, Peter

    Inventor： SCHOUBYE, Peter

    CPC classification number: B01D53/8625 ,  B01D53/508

    Abstract: A process for catalytic reduction of NOx in off gases containing SO 3 in which an excess relative to the content of SO 3 of an alkaline adsorbent (3) is injected (2) in the off gas together with the amount of NH 3 (4) required for the NOx-reduction, upstream of a dust filter (10) followed by a catalyst for reduction of NOx by NH 3 at temperatures close to or below the dew point of NH 4 HSO 4 and (NH 4 ) 2 SO 4 given by the concentration of SO 3 in the off gas and the amount of NH 3 injected in the gas.

    Abstract translation: 含有相对于碱性吸附剂（3）的SO 3含量过量的含有SO 3的废气中的NOx的催化还原方法被注入（2） 在废气中与NOx还原所需的NH 3（4）的量一起，在除尘过滤器（10）的上游，随后是通过NH 3还原NOx的催化剂 在接近或低于NH 4 HSO 4的露点的温度和（NH 4）2

    PROCESS FOR PRODUCTION OF AMMONIUM THIOSULPHATE
    5.
    发明申请
    PROCESS FOR PRODUCTION OF AMMONIUM THIOSULPHATE 审中-公开
    生产硫酸氢铵的方法

    公开(公告)号：WO2002081370A1

    公开(公告)日：2002-10-17

    申请号：PCT/EP2002/003043

    申请日：2002-03-19

    Applicant: HALDOR TOPSØE A/S

    Inventor： SCHOUBYE, Peter ,  CHRISTENSEN, Kurt, Agerbaek

    IPC: C01B17/64

    CPC classification number: C01B17/64

    Abstract: A process for production of ammonium thiosulphate (ATS) from H 2 S, NH 3 and SO 2 , comprising producing ATS in a first absorption step by treating a first stream comprising H 2 S and NH 3 with more than 0.3 mole H 2 S per mole NH 3 with a solution containing ATS and ammonium sulphites said solution being produced in a second absorption step by treating part of the solution from the first absorption step with a second gas stream comprising SO 2 . Said second gas stream is obtained by combusting the H 2 S-containing off gas from the first absorption step supplemented with H 2 S-containing gas imported from other sources and/or by importing SO 2 -containing off gas streams from other sources. The content of NH 3 in the off gas from the second absorber may be decreased by adding the equivalent amount of SO 2 to said off gas upstream of an aerosol filter removing the NH 3 and SO 2 as a solution of NH 4 HSO 3 , which is fed to the first or second absorber, while the off gas from said filter is passed to the atmosphere.

    Abstract translation: 一种从H 2 S，NH 3和SO 2生产硫代硫酸铵（ATS）的方法，其包括在第一吸收步骤中通过用含有ATS和铵的溶液处理含有大于0.3摩尔H 2 S /摩尔NH 3的H 2 S和NH 3的第一物流 亚硫酸盐所述溶液在第二吸收步骤中通过用包含SO 2的第二气流处理来自第一吸收步骤的溶液的一部分来生产。 所述第二气流是通过从补充有从其他来源进口的含有H 2 S的气体的第一吸收步骤和/或从其他来源进口含SO2的废气流来燃烧含H 2 S的废气。 通过向除去NH 3和SO 2的气溶胶过滤器上游的所述废气添加等量的SO 2，可以降低来自第二吸收器的废气中的NH 3，作为NH 4和SO 2的溶液，其被供给到第一或第二 而来自所述过滤器的废气通过大气。

    PROCESS AND APPARATUS FOR SULPHURIC ACID PRODUCTION
    7.
    发明申请
    PROCESS AND APPARATUS FOR SULPHURIC ACID PRODUCTION 审中-公开
    硫酸生产工艺及装置

    公开(公告)号：WO2011147431A1

    公开(公告)日：2011-12-01

    申请号：PCT/EP2010/003223

    申请日：2010-05-27

    Applicant: HALDOR TOPSOE A/S ,  MOLLERHOJ, Martin ,  LYKKE, Mads ,  THELEFSEN, Morten ,  SCHOUBYE, Peter

    Inventor： MOLLERHOJ, Martin ,  LYKKE, Mads ,  THELEFSEN, Morten ,  SCHOUBYE, Peter

    IPC: C01B17/765

    CPC classification number: C01B17/765

    Abstract: In sulphuric acid production by oxidation of SO 2 into SO 3 and subsequent hydration of SO 3 , from feed gases having a varying SO 2 concentration, the stability and thermal efficiency of the sulphuric acid plant can be increased by configuring the catalytic reaction zone to match the requirements for conversion. This can be done by appropriate flow and reactor configuration, such as by-passing one or more sections of catalytically active materials, or leading the feed gas through a limited catalytic reaction zone in the case of low SO 2 concentration. The associated benefits are catalytic reaction zones having fewer, smaller and more predictable temperature gradients compared to a plant in which the varying feed gas is directed through the same reaction zones. The invention also relates to a reactor for carrying out the process, and a sulphuric acid production process comprising the conversion process.

    Abstract translation: 在通过将SO 2氧化成SO 3并随后从SO 2浓度变化的原料气中进行SO 3的水合而产生的硫酸中，通过配置催化反应区以适应转化要求，可以提高硫酸装置的稳定性和热效率 。 这可以通过合适的流动和反应器构造来完成，例如旁路一个或多个催化活性材料部分，或者在低SO 2浓度的情况下引导进料气体通过有限的催化反应区。 与其中变化的进料气体通过相同反应区的设备相比，相关的益处是具有更少，更小和更可预测的温度梯度的催化反应区。 本发明还涉及一种用于进行该方法的反应器和包含该转化方法的硫酸生产方法。

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