Process and apparatus for sulphuric acid production
    1.
    发明授权
    Process and apparatus for sulphuric acid production 有权
    硫酸生产工艺和设备

    公开(公告)号:US08951494B2

    公开(公告)日:2015-02-10

    申请号:US13698560

    申请日:2011-05-13

    IPC分类号: C01B17/69 C01B17/765

    CPC分类号: C01B17/765

    摘要: 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.

    摘要翻译: 一种将进料气体中所含的二氧化硫转化为三氧化硫的方法,包括以下步骤:a)交替地提供含有高浓度二氧化硫的第一进料气体和含有低浓度二氧化硫的第二进料气体作为 工艺气体,b)通过与热交换介质进行热交换来预热工艺气体,c)在催化反应区中催化活性材料存在下使工艺气体反应,d)至少部分地将二氧化硫 将催化反应区中产物气体中所含的三氧化硫气体加工成三氧化硫,e)通过与热交换介质接触来冷却产物气体,其中相对于所述工艺步骤之一提供热缓冲区,提供产生的热能 在超自热操作期间,在亚热自动加热过程中加热工艺气体。

    Production of sulphuric acid from a feed gas with varying concentration of sulphur dioxide
    2.
    发明申请
    Production of sulphuric acid from a feed gas with varying concentration of sulphur dioxide 失效
    从具有不同浓度二氧化硫的进料气体生产硫酸

    公开(公告)号:US20050036936A1

    公开(公告)日:2005-02-17

    申请号:US10912169

    申请日:2004-08-06

    IPC分类号: C01B17/60 C01B17/74 C01B17/69

    CPC分类号: C01B17/74 C01B17/60

    摘要: A process for the production of sulphuric acid from a sulphur dioxide containing feed gas with concentration of SO2 fluctuating between 0 and 100 mole % SO2 comprising the steps of contacting the feed gas with an aqueous solution comprising 0-50% by weight H2SO4 at a temperature between the freezing point of said aqueous solution and 50° C.; and during the contact of the feed gas with the aqueous solution absorbing at least a part of SO2 in the feed gas in the aqueous solution or desorbing at least a part of SO2 from the aqueous solution, wherein the at least a part of SO2 is desorbed by stripping the aqueous solution with the feed gas.

    摘要翻译: 一种从含二氧化硫的进料气体产生硫酸的方法,其浓度为SO 2波动在0-100摩尔%SO 2之间,包括以下步骤:使进料气体与包含0-50%(重量)H 2 SO 4的水溶液接触, 在所述水溶液的凝固点和50℃之间。 并且在所述进料气体与所述水溶液中的进料气体中吸收至少一部分SO 2的水溶液接触期间或者从所述水溶液中解吸至少一部分SO 2,其中所述至少一部分SO 2被解吸附 通过用进料气体汽提水溶液。

    SUPPORT FOR A HELICAL COIL INSERTED IN A HEAT EXCHANGER TUBE
    3.
    发明申请
    SUPPORT FOR A HELICAL COIL INSERTED IN A HEAT EXCHANGER TUBE 有权
    支持在热交换器管中插入的螺旋线圈

    公开(公告)号:US20110247793A1

    公开(公告)日:2011-10-13

    申请号:US13140215

    申请日:2009-12-01

    IPC分类号: F28F1/00

    摘要: 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.

    摘要翻译: 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 selective reduction of NOx in exhaust gas
    5.
    发明授权
    Process for selective reduction of NOx in exhaust gas 失效
    选择性还原废气中NOx的方法

    公开(公告)号:US06074619A

    公开(公告)日:2000-06-13

    申请号:US38956

    申请日:1998-03-12

    申请人: Peter Schoubye

    发明人: Peter Schoubye

    摘要: A process for selective catalytic reduction of NOx in exhaust gases at temperatures of 200-600.degree. C. A spray of droplets containing a reductant is injected into a duct through an atomizing nozzle and into an exhaust gas. The exhaust gas, loaded with the spray droplets, is passed through the spaces between the plates of a series of stacks of parallel plates. The plates of each stack in the series are positioned at an angle relative to the walls of the gas duct and any adjacent stack, forcing the exhaust gas to pass through the stacks in a zig-zag flow pattern. After passing through the last stack, the exhaust gas then passes through a layer of monolithic catalyst for selective reduction of NOx by NH.sub.3 with channels parallel to the walls of the duct. Substantially all the spray droplets impinge on the walls of the plates, and the diameter of the droplets are larger than the critical diameter at which they are caused to touch the walls each time the direction of gas-flow is deflected upon passing through the stacks.

    摘要翻译: 在200-600℃的温度下选择性催化还原废气中的NOx的方法。含有还原剂的液滴喷雾通过雾化喷嘴注入管道并进入废气。 装载有喷雾液滴的废气通过一系列平行板的板之间的空间。 串联中的每个堆叠的板相对于气体管道的壁和任何相邻的堆叠以一定角度定位,迫使排气以锯齿状流动模式通过堆叠。 在通过最后的堆叠之后,废气然后通过一层整体式催化剂,用于通过平行于管道壁的通道的NH 3选择性还原NOx。 基本上所有的喷雾液滴都撞击到板的壁上,并且液滴的直径大于每当通过堆叠时气体流动的方向偏转时使其与壁接触的临界直径。

    Method for furnishing glass tube with internal glass spiral
    6.
    发明授权
    Method for furnishing glass tube with internal glass spiral 失效
    玻璃管内装玻璃螺旋的方法

    公开(公告)号:US5639288A

    公开(公告)日:1997-06-17

    申请号:US575990

    申请日:1995-12-21

    申请人: Peter Schoubye

    发明人: Peter Schoubye

    摘要: A method to provide a glass tube with an internal glass spiral being formed from a straight glass rod and fastened to the internal wall of the glass tube by merging the glass rod with the glass wall in the line of contact between the glass wall and the spiral wherein the glass rod is conducted into the glass tube through a guiding tube placed inside the glass tube at a velocity v.sub.1 relative to the guiding tube, the guiding tube being provided with a heating zone at its front end inside the glass tube, the glass rod being heated to its softening point in the heating zone before leaving the guiding tube through a mouth piece, at the same time the glass tube and/or the guiding tube being rotated at a frequency n, and the glass tube being moved at a velocity v.sub.2 relative to the guiding tube.

    摘要翻译: 一种提供具有内玻璃螺旋的玻璃管的方法,该玻璃管由直玻璃棒形成,并通过玻璃棒与玻璃壁之间的玻璃壁与螺旋线之间的接触接合而将其固定在玻璃管的内壁上 其中所述玻璃棒通过相对于所述导向管以相对于所述导向管的速度v1放置在所述玻璃管内的引导管引导到所述玻璃管中,所述引导管在其玻璃管内的前端设置有加热区,所述玻璃棒 在通过口件离开引导管之前加热到加热区的软化点,同时玻璃管和/或引导管以n频率旋转,玻璃管以速度v2移动 相对于引导管。

    Process for production of ammonium thiosulphate
    7.
    发明授权
    Process for production of ammonium thiosulphate 失效
    硫代硫酸铵生产工艺

    公开(公告)号:US07052669B2

    公开(公告)日:2006-05-30

    申请号:US10464519

    申请日:2003-06-19

    IPC分类号: C01B17/64

    CPC分类号: C01B17/64

    摘要: A process for continuous production of ammonium thiosulphate, (NH4)2S2O3 (ATS) from NH3, H2S and SO2 is disclosed. A first feed stream comprising H2O, H2S and NH3 with a molar H2S:NH3 ratio

    摘要翻译: 一种连续生产硫代硫酸铵(NH 3)2 N 2 O 3(ATS)的方法, 公开了NH 3,H 2 S和SO 2。 包含H 2 H 2 S,H 2 S和NH 3的H 2 S的第一进料流: NH 3比<0.4部分冷凝以形成冷凝物。 冷凝物与包含H 2 S的第三进料气体接触,并且将包含NH 3和H 2 S的气流送入混合 装置,其中气流被溶解在从气溶胶过滤器排出的水中。 将包含在第一进料流中的每摩尔NH 3 3的约2/3摩尔SO 2的第二进料气流送入SO 2 >吸收器。 在混合装置中产生的水溶液与SO 2吸收剂接触。

    Production of sulphuric acid from a feed gas with varying concentration of sulphur dioxide
    8.
    发明授权
    Production of sulphuric acid from a feed gas with varying concentration of sulphur dioxide 失效
    从具有不同浓度二氧化硫的进料气体生产硫酸

    公开(公告)号:US07033565B2

    公开(公告)日:2006-04-25

    申请号:US10912169

    申请日:2004-08-06

    IPC分类号: C01B17/76 C01B17/90

    CPC分类号: C01B17/74 C01B17/60

    摘要: A process for the production of sulphuric acid from a sulphur dioxide containing feed gas with concentration of SO2 fluctuating between 0 and 100 mole % SO2 comprising the steps of contacting the feed gas with an aqueous solution comprising 0–50% by weight H2SO4 at a temperature between the freezing point of said aqueous solution and 80° C.; and during the contact of the feed gas with the aqueous solution absorbing at least a part of SO2 in the feed gas in the aqueous solution or desorbing at least a part of SO2 from the aqueous solution, wherein the at least a part of SO2 is desorbed by stripping the aqueous solution with the feed gas and passing at least part of the thus treated feed gas to a sulphuric acid plant.

    摘要翻译: 一种从含二氧化硫的进料气体生产硫酸的方法,其浓度为0至100%(重量)SO 2,包括以下步骤:使进料 在所述水溶液的凝固点和80℃之间的温度下,用包含0-50重量%H 2 SO 4的水溶液进行气体化。 并且在进料气体与吸收水溶液中的进料气体中的SO 2的至少一部分的水溶液接触期间,或者解吸至少一部分SO 2 其中SO 2的至少一部分通过用进料气体汽提水溶液并将至少部分经处理的进料气体通入硫酸设备来解吸。

    Process for concentration of sulphuric acid
    9.
    发明授权
    Process for concentration of sulphuric acid 失效
    硫酸浓缩方法

    公开(公告)号:US6090364A

    公开(公告)日:2000-07-18

    申请号:US976312

    申请日:1997-11-21

    申请人: Peter Schoubye

    发明人: Peter Schoubye

    IPC分类号: C01B17/88 C01B17/69

    CPC分类号: C01B17/88

    摘要: The present invention provides a process for concentrating sulphuric acids with concentrations of 90% to 98% H.sub.2 SO.sub.4 and temperatures of 160.degree. C. to 270.degree. C. into sulphuric acid with concentrations of 96% to 98.8% H.sub.2 SO.sub.4 by contacting the acid countercurrently in a packed tower with hot air or with hot process gas containing up to 6% SO.sub.3 and up to 30% H.sub.2 O and with inlet temperatures to the tower of 350.degree. C to 600.degree. C. The H.sub.2 O and H.sub.2 SO.sub.4 evaporated in the tower is contained in a stream of offgas from which the H.sub.2 SO.sub.4 thereafter is removed by controlled condensation The invention relates, in particular, to concentrating the product acid from wet gas sulphuric acid plants in which condensation of H.sub.2 SO.sub.4 takes place in the presence of excess H.sub.2 O in the process gas in air cooled, vertical glass tubes.

    摘要翻译: 本发明提供了一种将浓度为90%至98%的H 2 SO 4和160至270℃的硫酸浓缩成浓度为96%至98.8%的H 2 SO 4的硫酸的方法,其通过将酸逆向接触 填充塔用热空气或含有高达6%SO 3和高达30%H 2 O的热处理气体,并且塔的入口温度为350℃至600℃。在塔中蒸发的H 2 O和H 2 SO 4含有 通过控制的冷凝从其中除去H 2 SO 4的废气流本发明特别涉及浓缩来自湿气硫酸设备的产物酸,其中在空气中的过程气体中存在过量H 2 O时发生H 2 SO 4的冷凝 冷却,垂直玻璃管。

    Condensing sulfuric acid vapors to produce sulfuric acid
    10.
    发明授权
    Condensing sulfuric acid vapors to produce sulfuric acid 失效
    冷凝式硫酸蒸汽生产硫酸

    公开(公告)号:US5198206A

    公开(公告)日:1993-03-30

    申请号:US623409

    申请日:1990-12-06

    申请人: Peter Schoubye

    发明人: Peter Schoubye

    摘要: When condensing sulfuric acid from gases containing sulfuric acid vapor and steam in excess, e.g. originating from a power station, a substantial decrease of the amount minute droplets of sulfuric acid (the so-called acid mist) escaping to the surroundings is obtained, even in cases where the sulfuric acid plant is equipped with an aerosol filter, if minute nucleation cores are incorporated into the gas in an amount of 10.sup.9 to 10.sup.12 solid particles per Nm.sup.3 per 0.1 % H.sub.2 SO.sub.4 -vapor in the gas. The nucelation cores may, e.g., be generated by combusting hydrocarbons with>2 carbon atoms or silicones, or added as smoke from an electric arc or welding.

    摘要翻译: PCT No.PCT / DK89 / 00133 Sec。 371 1990年12月6日第 102(e)日期1990年12月6日PCT提交1989年5月22日PCT公布。 出版物WO89 / 12025 日期为1989年12月14日。当从含有硫酸蒸汽和蒸汽的气体中浓缩硫酸, 即使在硫酸装置配备有气溶胶过滤器的情况下,即使是微小的成核,也能够获得大量的硫酸酸滴(所谓的酸性雾)逸出到周边的量 在气体中,核心以每Nm 3每0.1%H 2 SO 4蒸汽为109至1012个固体颗粒的量加入到气体中。 可以例如通过燃烧具有> 2个碳原子的碳氢化合物或硅氧烷,或者从电弧或焊接作为烟气加入来生产所述核心。