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    PROCESS FOR THE PREPARATION OF DIMETHYL ETHER
    11.
    发明公开
    PROCESS FOR THE PREPARATION OF DIMETHYL ETHER 审中-公开
    用于生产二甲醚

    公开(公告)号：EP2176206A1

    公开(公告)日：2010-04-21

    申请号：EP08773948.8

    申请日：2008-07-10

    申请人： Haldor Topsoe A/S

    发明人： ROSTRUP-NIELSEN, Thomas

    IPC分类号： C07C41/01 ,  C07C43/04

    CPC分类号： C07C41/01 ,  C07C43/043

    摘要： Process for the preparation of dimethyl ether by catalytic conversion of synthesis gas to dimethyl ether comprising contacting a stream of synthesis gas comprising carbon dioxide with one or more catalysts active in the formation of methanol and the dehydration of methanol to dimethyl ether, to form a product mixture comprising the components dimethyl ether, carbon dioxide and unconverted synthesis gas, washing the product mixture comprising carbon dioxide and unconverted synthesis gas in a first scrubbing zone with a first solvent rich in dimethyl ether and subsequently washing the effluent from the first scrubbing zone in a second scrubbing zone with a second solvent rich in methanol to form a vapour stream comprising unconverted synthesis gas stream with reduced content of carbon dioxide, transferring the vapour stream comprising unconverted synthesis gas stream with reduced carbon dioxide content for further processing to dimethyl ether.

    Method for purification of an exhaust gas from a diesel engine
    12.
    发明公开
    Method for purification of an exhaust gas from a diesel engine 有权
    伊斯法罕zum Reinigen des Abgases eines Dieselmotors

    公开(公告)号：EP2112341A3

    公开(公告)日：2010-02-17

    申请号：EP09005153.3

    申请日：2009-04-08

    申请人： Haldor Topsoe A/S

    发明人： Gekas, Ioannis

    IPC分类号： F01N3/20 ,  F01N3/02

    CPC分类号： F01N3/2066 ,  F01N3/0253 ,  F01N3/035 ,  F01N13/0097 ,  F01N2610/02 ,  F01N2610/03 ,  Y02T10/24

    摘要： The invention provides a method for removing impurities in exhaust gas from a diesel engine, where the impurities comprise nitrogen oxides, carbon monoxide, particulate matter and incompletely combusted hydrocarbons. The method comprises the steps of injection of a reductant comprising urea or ammonia into the exhaust gas from the engine, selective catalytic reduction of the nitrogen oxides in the exhaust gas by the reductant, and intermittent injection of a hydrocarbon into this effluent. The succeeding steps are oxidation of carbon monoxide, particulate matter, incompletely combusted hydrocarbons and injected hydrocarbon to carbon dioxide and water, and in selectively oxidising possible excess of reductant to free nitrogen, and finally filtration of the effluent by passing the gas through a catalysed filter, wherein the remaining particulate matter is retained in the filter, and wherein the carbon monoxide, particulate matter and hydrocarbons are oxidised to carbon dioxide and water, and the reductant is selectively oxidised to nitrogen, creating a purified exhaust gas.

    摘要翻译： 本发明提供一种从柴油发动机中除去废气中的杂质的方法，其中杂质包括氮氧化物，一氧化碳，颗粒物和不完全燃烧的烃。 该方法包括以下步骤：将来自发动机的废气中含有尿素或氨的还原剂注入，通过还原剂选择性地催化还原废气中的氮氧化物，并将烃间歇地注入该流出物。 后续步骤是将一氧化碳，颗粒物质，不完全燃烧的烃和注入的烃氧化成二氧化碳和水，以及选择性氧化可能过量的还原剂到游离氮，最后通过使气体通过催化过滤器过滤流出物 其中剩余的颗粒物质保留在过滤器中，并且其中一氧化碳，颗粒物质和碳氢化合物被氧化成二氧化碳和水，并且还原剂被选择性地氧化成氮气，产生净化的废气。

    Process for the recovery of sulfuric acid
    17.
    发明公开
    Process for the recovery of sulfuric acid 审中-公开
    Verfahren zur Wiedergewinnung vonSchwefelsäure

    公开(公告)号：EP1864947A2

    公开(公告)日：2007-12-12

    申请号：EP07010651.3

    申请日：2007-05-29

    申请人： Haldor Topsoe A/S

    发明人： Hommeltoft, Sven Ivar ,  Thellefsen, Morten

    IPC分类号： C01B17/76 ,  C01B17/90

    CPC分类号： C01B17/90 ,  C01B17/76

    摘要： Process for the recovery of sulfuric acid comprising:
    (a) contacting a stream containing sulfuric acid vapor and/or sulfur trioxide in an absorption stage with a ionic liquid absorbent,
    (b) withdrawing a gas substantially free of sulfuric acid vapor and/or sulfur trioxide from said absorption stage,
    (c) withdrawing a stream comprising the ionic liquid absorbent from said absorption stage, in which said ionic liquid absorbent contains sulfuric acid,
    (d) recovering sulfuric acid from said ionic liquid absorbent by passing the stream of step (c) through a separation stage,
    (e) withdrawing from the separation stage (d) a stream rich in sulfuric acid,
    (f) withdrawing from the separating step (d) a ionic liquid absorbent stream in which said ionic liquid absorbent contains sulfuric acid and returning said stream to the absorption step (a).

    摘要翻译： 回收硫酸的方法包括：（a）在吸收阶段将含有硫酸蒸汽和/或三氧化硫的物流与离子液体吸收剂接触，（b）取出基本上不含硫酸蒸气和/或硫的气体 （c）从所述吸收阶段抽出包含离子液体吸收剂的物流，其中所述离子液体吸收剂含有硫酸，（d）通过使所述离子液体吸收剂流通过步骤 c）通过分离阶段，（e）从分离阶段（d）中排出富含硫酸的物流，（f）从分离步骤（d）中取出离子液体吸收剂流，其中所述离子液体吸收剂含有硫酸 并将所述物流返回到吸收步骤（a）。