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    Method and catalyst for direct sulphur oxidation of H2S contained in a gas
    22.
    发明授权
    Method and catalyst for direct sulphur oxidation of H2S contained in a gas 有权
    用于气体中所含的H2S的直接硫氧化的方法和催化剂

    公开(公告)号：US06235259B1

    公开(公告)日：2001-05-22

    申请号：US09383153

    申请日：1999-08-25

    申请人： Marc Ledoux ,  Nougayrede Jean ,  Savin-Poncet Sabine ,  Pham Huu Cuong ,  Keller Nicolas ,  Crouzet Claude

    发明人： Marc Ledoux ,  Nougayrede Jean ,  Savin-Poncet Sabine ,  Pham Huu Cuong ,  Keller Nicolas ,  Crouzet Claude

    IPC分类号： B01D5352

    CPC分类号： C01B17/0465 ,  B01D53/8615 ,  B01J27/04 ,  B01J27/30 ,  B01J38/04 ,  C01B17/0469 ,  Y02P20/584

    摘要： A regenerative process for oxidizing H2S contained in low concentration in a gas directly to sulphur including combining the H2S-containing gas with a gas containing free oxygen in an amount to form an O2/H2S-containing gas with an O2/H2S molar ratio ranging from 0.05 to 15; contacting the O2/H2S-containing gas with a catalyst for the selective oxidation of H2S to sulphur, wherein the catalyst includes a catalytically active phase containing at least one oxysulphide of at least one metal selected from the group consisting of nickel, iron, cobalt, copper, chromium, molybdenum and tungsten combined with a silicon carbide support and including a compound of at least one transition metal, at temperatures below the dew point of the sulphur formed by oxidation of H2S and depositing the sulphur on the catalyst; periodically regenerating by flushing the sulphur-laden catalyst using a non-oxidizing gas at temperatures of between 200° C. and 500° C. to vaporize sulphur retained on the catalyst; and cooling the regenerated catalyst below the dew point of the sulphur to a temperature for H2S oxidation to be carried out again, such cooling being carried out by a gas having a temperature less than 180° C.

    摘要翻译： 将气体中低浓度的H 2 S直接氧化为硫的再生方法，包括将含H 2 S的气体与含有游离氧气的气体组合，形成含有O 2 / H 2 S的气体，其中O 2 / H 2 S摩尔比范围为 0.05〜15; 使含有O 2 / H 2 S的气体与用于选择性氧化H 2 S至硫的催化剂接触，其中所述催化剂包括催化活性相，其含有至少一种选自镍，铁，钴， 铜，铬，钼和钨与碳化硅载体组合并且包括至少一种过渡金属的化合物，在低于通过硫化H 2 S形成的硫的露点的温度和在催化剂上沉积硫; 通过在200℃和500℃之间的温度下使用非氧化气体冲洗载有硫的催化剂来周期性地再生以蒸发保留在催化剂上的硫; 并将再生催化剂冷却至低于硫的露点以再次进行H 2 S氧化的温度，这样的冷却是通过温度低于180℃的气体进行的。

    Catalyst and method for the selective oxidation of sulfur compounds to elemental sulfur
    23.
    发明授权
    Catalyst and method for the selective oxidation of sulfur compounds to elemental sulfur 有权
    硫化合物选择性氧化成元素硫的催化剂和方法

    公开(公告)号：US06207127B1

    公开(公告)日：2001-03-27

    申请号：US09142309

    申请日：1998-12-07

    申请人： John Wilhelm Geus ,  Robert Johan Andreas Maria Terörde

    发明人： John Wilhelm Geus ,  Robert Johan Andreas Maria Terörde

    IPC分类号： C01B1704

    CPC分类号： B01J23/76 ,  C01B17/0465 ,  Y10S502/514 ,  Y10S502/517

    摘要： The invention provides a catalyst; a method for making the catalyst and a method for using the catalyst to promote the selective oxidation of hydrogen sulfide into elemental sulfur. The catalyst may be prepared by contacting a catalyst support, such as silica, with a solution containing ammonium metal salts, such as ammonium iron citrate and ammonium zinc citrate, and an amount of chloride (e.g., ammonium chloride) that is between about 0.1 and about 20 weight percent of the metal ions in the solution, to produce a support material impregnated with ammonium metal citrate salts and ammonium chloride. This impregnated catalyst support is then dried and calcined to produce a catalyst, such as iron and zinc oxide mixture supported on silica. It has been found that by adding chloride to the impregnated catalyst support prior to calcination and drying, that the sintering of the metal oxides can be controlled and the formation of a mixed metal oxide is promoted. It has also been found that the catalyst of the invention exhibits improved selectivity characteristics when compared to a catalyst prepared without the chloride.

    摘要翻译： 本发明提供催化剂; 制备催化剂的方法和使用该催化剂促进硫化氢选择性氧化成元素硫的方法。 催化剂可以通过使催化剂载体如二氧化硅与含有铵金属盐（例如柠檬酸铁铵和柠檬酸铵锌）的溶液以及一定量的氯化物（例如氯化铵）接触来制备，所述氯化物（例如，氯化铵）在约0.1和 约20重量％的溶液中的金属离子，以产生浸渍有铵金属柠檬酸盐和氯化铵的载体材料。 然后将该浸渍的催化剂载体干燥并煅烧以产生催化剂，例如负载在二氧化硅上的铁和氧化锌混合物。 已经发现，通过在煅烧和干燥之前向浸渍的催化剂载体中加入氯化物，可以控制金属氧化物的烧结并促进混合金属氧化物的形成。 还已经发现，与不用氯化物制备的催化剂相比，本发明的催化剂表现出改进的选择性特性。

    Rasik lal datta
    26.
    发明授权
    Rasik lal datta 失效

    公开(公告)号：US1313370A

    公开(公告)日：1919-08-19

    申请号：US1313370D

    CPC分类号： C01B17/0465

    Catalytic partial oxidation process for recovering sulfur from an H2S-containing gas stream
    29.
    发明授权
    Catalytic partial oxidation process for recovering sulfur from an H2S-containing gas stream 有权
    用于从含H 2 S的气流中回收硫的催化部分氧化方法

    公开(公告)号：US07326397B2

    公开(公告)日：2008-02-05

    申请号：US11225355

    申请日：2005-09-13

    申请人： Sriram Ramani ,  Alfred E. Keller ,  Devadas Panjala

    发明人： Sriram Ramani ,  Alfred E. Keller ,  Devadas Panjala

    IPC分类号： C01B17/04

    CPC分类号： C01B17/0465 ,  B01D53/8612 ,  B01J23/58 ,  B01J23/626 ,  C01B17/046 ,  C01B2203/1241 ,  C01B2203/127 ,  C01B2203/1282 ,  C10L3/10 ,  C10L3/102

    摘要： A process for purifying a light hydrocarbon stream containing H2S is disclosed in which the selective catalytic partial oxidation of the H2S component is carried out while the hydrocarbon components slip through substantially unconverted. A catalyst that favors the partial oxidation of H2S over conversion of the hydrocarbon component of a gaseous H2S-light hydrocarbon mixture is employed. Apparatus for selectively cleaning up light hydrocarbon streams containing low concentrations (e.g., less than 25 vol. %), and apparatus for selectively cleaning up light hydrocarbon streams having higher concentrations (e.g., greater than 25 vol. %) of H2S are also disclosed.

    摘要翻译： 公开了一种用于纯化含有H 2 S的轻质烃流的方法，其中进行H 2 S 2组分的选择性催化部分氧化，同时烃组分滑过 基本未转换 采用有利于H 2 S 2部分氧化的催化剂超过气态H 2 S-S / S轻烃混合物的烃组分的转化。 用于选择性清洗含有低浓度（例如小于25体积％）的轻烃流的装置，以及用于选择性清洗具有较高浓度（例如大于25体积％）H 2的轻质烃流的装置 还公开了S。