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    SINGLE CONTACT, SINGLE ABSORPTION SYSTEM FOR PRODUCING SULFURIC ACID WITH HIGH CONVERSION EFFICIENCY
    5.
    发明公开
    SINGLE CONTACT, SINGLE ABSORPTION SYSTEM FOR PRODUCING SULFURIC ACID WITH HIGH CONVERSION EFFICIENCY 审中-公开
    EINZELKONTAKT-与单吸收系统用于生产硫酸高转换效率

    公开(公告)号：EP3152156A1

    公开(公告)日：2017-04-12

    申请号：EP15724489.8

    申请日：2015-05-13

    申请人： Chemetics Inc.

    发明人： LYNE, Graham

    IPC分类号： C01B17/79 ,  B01J23/847 ,  B01J23/42 ,  C01B17/80

    CPC分类号： C01B17/79 ,  B01J23/22 ,  B01J23/42 ,  B01J35/0006 ,  B01J35/02 ,  B01J35/04 ,  B01J37/0215 ,  C01B17/765 ,  C01B17/803 ,  C01B17/806

    摘要： Commercial production of sulfuric acid is almost entirely accomplished nowadays using the contact process. And the trend is to increase conversion efficiency and reduce emissions of unconverted sulfur dioxide. By using a special combination of contact catalyst beds, a single contact single absorption (SCSA) system can be engineered to achieve the conversion and emission capabilities of conventional double contact double absorption systems. Thus, the complexity and cost of incorporating a second absorption tower and associated heat exchanger in the system can be omitted. In the SCSA system, the initial catalyst bed or beds comprise vanadium oxide catalyst and the last catalyst bed or beds comprise platinum catalyst operating at a much lower temperature than the initial beds.

    摘要翻译： 商业生产硫酸的使用接触过程几乎完全实现现今。 并且趋势是提高转换效率和减少的未转化的二氧化硫排放。 通过使用接触催化剂床的特殊组合，单个接触单个吸收（SCSA）系统可被设计成实现传统的双接触双吸收系统的转化率和发射能力。 因此，在系统的复杂性并结合第二吸收塔的成本和相关联的换热器可以省略。 在SCSA系统中，初始的催化剂床或床包括氧化钒催化剂和催化剂负载床或床包括铂催化剂在比初始床的低得多的温度下操作。

    Production of sulfuric acid from coke oven gas desulfurisation product
    6.
    发明公开
    Production of sulfuric acid from coke oven gas desulfurisation product 审中-公开
    焦炉煤气脱硫产品生产硫酸

    公开(公告)号：EP2942323A1

    公开(公告)日：2015-11-11

    申请号：EP14167692.4

    申请日：2014-05-09

    申请人： Haldor Topsøe A/S

    发明人： Thellefsen, Morten

    IPC分类号： C01B17/04 ,  B01D53/00 ,  C01B17/54 ,  C01B17/56 ,  C01B17/76 ,  C01B17/80 ,  C01B17/88

    CPC分类号： C01B17/54 ,  B01D53/1468 ,  B01D2252/102 ,  B01D2252/602 ,  B01D2257/304 ,  B01D2257/408 ,  C01B17/05 ,  C01B17/765 ,  Y02P20/129

    摘要： The present invention relates to a process and a process plant for the production of sulfuric acid from a gas comprising H 2 S and HCN characterized by the following steps; directing said gas to an alkaline absorber containing a liquid ammonia absorbent solution and a material catalytically active in oxidation of H 2 S to elemental sulfur providing a liquid slurry comprising sulfur and coke oven gas absorber liquid, separating at least a portion of said elemental sulfur from coke oven gas absorber liquid by mechanical means of separation as a sulfur sludge, combining said sulfur sludge with a support fuel and a first gas comprising oxygen in or upstream an incinerator, incinerating said mixture, providing an incinerated gas comprising SO 2 and NO x , optionally adding a second gas comprising oxygen to said incinerated gas, selectively removing the formed NO x by chemical reduction with NH 3 , contacting said process gas with a material active in oxidation of SO 2 to SO 3 providing an oxidized process gas, optionally adding water to said oxidized process gas and condensing concentrated sulfuric acid formed in said oxidized process gas.

    摘要翻译： 本发明涉及一种由含有H 2 S和HCN的气体生产硫酸的方法和工艺设备，其特征在于以下步骤： 将所述气体引导至含有液体氨吸收剂溶液和在将H 2 S氧化成为元素硫中具有催化活性的物质的碱性吸收剂中，提供包含硫和焦炉气体吸收剂液体的液体浆料，将至少一部分所述元素硫从焦炉 气体吸收器液体通过机械分离装置作为硫污泥，将所述硫污泥与载体燃料和包含氧气的第一气体在焚化炉中或上游混合，焚烧所述混合物，提供包含SO 2和NO x的焚化气体，任选地添加第二 通过用NH 3化学还原选择性地除去所形成的NO x，使所述处理气体与活性氧化SO 2到SO 3的物质接触，提供氧化的处理气体，任选地向所述氧化的处理气体中加入水并冷凝浓缩 在所述氧化的处理气体中形成硫酸。