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1.发明授权Catalyst for reducing the nitrogen oxide concentration in a flowing medium and method for producing the catalyst 失效用于降低流动介质中的氮氧化物浓度的催化剂及其制造方法
公开(公告)号：US6054408A
公开(公告)日：2000-04-25
申请号：US764712
申请日：1996-12-02
CPC分类号： B01D53/8628 , B01J23/28
摘要： An SCR catalyst containing titanium, molybdenum and vanadium has the particular characteristic that its catalytic activity is significantly less than that of a tungsten-containing catalyst. That disadvantage has been compensated for in the past by using a comparatively large volume of catalyst. In contrast to the conventional practice of using a molybdenum oxide proportion of about 10 to 12% by weight, the invention proposes that the molybdenum proportion of the catalyst, in the form of molybdenum trioxide MoO.sub.3, is about 0.01 to 5% by weight, preferably 1.5 to 4% by weight, relative to the weight of the catalyst mass. A catalyst containing this amount of molybdenum thus has an activity comparable to that of a tungsten-containing catalyst. The invention is applicable to all deNO.sub.x catalytic converters which call for the simultaneous presence of a reducing agent, in particular plate-type and honeycomb-type catalytic converters.
摘要翻译： 含有钛，钼和钒的SCR催化剂具有特别的特征，即其催化活性显着小于含钨催化剂的催化活性。 该缺点已经通过使用较大体积的催化剂得到补偿。 与使用约10至12重量％的氧化钼比例的常规实践相反，本发明提出以三氧化钼MoO 3的形式的催化剂的钼比例为约0.01至5重量％，优选为 相对于催化剂质量的重量为1.5至4重量％。 因此，含有该量的钼的催化剂具有与含钨催化剂相当的活性。 本发明适用于需要同时存在还原剂的所有脱硝催化转化器，特别是板式和蜂窝型催化转化器。
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2.发明授权
公开(公告)号：US5112794A
公开(公告)日：1992-05-12
申请号：US541714
申请日：1990-06-21
申请人： Erich Hums , Gunther Spitznagel
发明人： Erich Hums , Gunther Spitznagel
CPC分类号： B01J23/28 , B01D53/8628 , B01J23/002
摘要： In an arsenic resistant mixed oxide catalyst and a process for producing the same, oxides of at least the metals vanadium and molybdenum are provided, especially for reducing nitrogen oxides in flue gases in the presence of a reducing agent such as ammonia and carbon monoxide. A MoO.sub.3 phase and at least one oxygen-rich mixed oxide phase such as V.sub.9 Mo.sub.6 O.sub.40 is at least partly converted into a mixed oxide phase being poorer in oxygen such as a V.sub.9 Mo.sub.4 O.sub.25 phase, for increasing arsenic resistance.
摘要翻译： 在耐砷混合氧化物催化剂及其制造方法中，提供至少金属钒和钼的氧化物，特别是在还原剂如氨和一氧化碳存在下还原烟道气中的氮氧化物。 MoO 3相和至少一种富氧混合氧化物相如V9Mo6O40至少部分地转化为在氧中较差的混合氧化物相，例如V9Mo4O25相，用于增加耐砷性。
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公开(公告)号：US06368566B1
公开(公告)日：2002-04-09
申请号：US09463650
申请日：2000-03-30
IPC分类号： B01D4700
CPC分类号： F23G7/07 , B01D53/8662 , F23J15/006 , F23J2215/10 , F23J2215/301 , F23J2219/10 , F23J2219/80
摘要： The invention relates to a flue gas pipe (1) of an incineration plant, comprising a reaction zone (2) for breaking down harmful substances and a heat exchanger (3) for cooling the flue gas (R) which is mounted downstream and fitted with a dioxin catalytic converter (4). The dioxin catalytic converter (4) in the heat exchanger (3) makes it possible to prevent the renewed formation of dioxins by de novo synthesis when the temperature drops.
摘要翻译： 本发明涉及一种焚烧装置的烟气管道（1），其包括用于分解有害物质的反应区（2）和用于冷却烟气（R）的热交换器（3），所述热交换器（3）安装在下游并装配有 二恶英催化转化器（4）。 热交换器（3）中的二恶英催化转化器（4）可以在温度下降时通过从头合成来防止再生成二恶英。
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公开(公告)号：US5270277A
公开(公告)日：1993-12-14
申请号：US922182
申请日：1992-07-30
申请人： Erich Hums
发明人： Erich Hums
CPC分类号： B01J23/28 , B01D53/8628
摘要： An arsenic-resistant composite oxide catalyst containing oxides of at least the metals vanadium and molybdenum, in particular for reducing nitrogen oxides in flue gases in the presence of a reducing agent, such as ammonia or carbon monoxide, includes at least one composite oxide phase with a general formula V.sub.x Mo.sub.y O.sub.32, where x+y.ltoreq.12 and where x.gtoreq.1 and y.gtoreq.1, and optionally a MoO.sub.3 phase. A method for producing an arsenic-resistant composite oxide catalyst includes mixing vanadium oxide and molybdenum oxide or a precursor thereof with one another to form a mixture, heating the mixture to a temperature at which a mixture of oxides is present, preferably in completely molten form, then cooling down the mixture to form at least one composite oxide phase with a general formula V.sub.x Mo.sub.y O.sub.32, and then subjecting the composite oxide phase to a reducing treatment to prepare a lower-oxygen composite oxide phase with the same structure.
摘要翻译： 含有至少金属钒和钼的氧化物的耐砷复合氧化物催化剂，特别是用于在还原剂如氨或一氧化碳存在下还原烟道气中的氮氧化物，包括至少一种复合氧化物相，其具有 通用公式VxMoyO32，其中x + y <12，其中x> / = 1和y> / = 1，以及可选的MoO 3相。 制备耐砷复合氧化物催化剂的方法包括将氧化钒和氧化钼或其前体彼此混合以形成混合物，将混合物加热到存在氧化物混合物的温度，优选完全熔融形式 然后冷却混合物以形成具有通式VxMoyO32的至少一种复合氧化物相，然后对复合氧化物相进行还原处理以制备具有相同结构的低氧复合氧化物相。
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5.发明授权
公开(公告)号：US4880378A
公开(公告)日：1989-11-14
申请号：US100748
申请日：1987-09-24
申请人： Erich Hums
发明人： Erich Hums
IPC分类号： B01D53/86
CPC分类号： B01D53/8628
摘要： A combustion plant having a device for reducing nitrogen oxides in flue gases, includes an injection device for injecting a gaseous reducing agent, and a catalyst arrangement disposed downstream of the injection device in flow direction of the flue gases, and being formed with a catalyst containing elements of the iron group subjectible to a flue gas temperature in excess of 600.degree. C.
摘要翻译： 具有用于还原烟道气中的氮氧化物的装置的燃烧装置包括用于喷射气态还原剂的注入装置和设置在烟道气流动方向上的注入装置下游的催化剂装置，并且形成有含有 铁基元素可燃烟气温度超过600℃。
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公开(公告)号：US5904040A
公开(公告)日：1999-05-18
申请号：US990033
申请日：1997-12-12
申请人： Erich Hums , Nicolas Vortmeyer
发明人： Erich Hums , Nicolas Vortmeyer
摘要： A gas turbine can achieve comparatively low emissions of nitrogen oxide. One disadvantage particularly of a catalytic combustion chamber is that, for example for natural gas, the ignition temperature necessary for combustion is in the region of about 400 .degree. C. The use of an auxiliary burner, which constitutes a disadvantageous source of nitrogen oxide, has therefore been heretofore unavoidable. In order to eliminate that disadvantage, a gas turbine for the combustion of a fuel gas, particularly with catalytic combustion of the fuel gas, includes a conduit system for drawing off part of the fuel gas, guiding it through a catalytic preforming stage to convert a hydrocarbon contained in the fuel gas into an alcohol and/or an aldehyde and subsequently feeding it to the fuel gas again in order to lower its ignition temperature. In this way, the comparatively easily igniting fuels alcohol and/or aldehyde are obtained from the fuel gas in the preforming stage. A fuel gas intermixed with these materials therefore ignites at a considerably lower ignition temperature than a fuel gas without preformed constituents.
摘要翻译： 燃气轮机可以实现相对较低的氮氧化物排放。 特别是催化燃烧室的一个缺点是，例如对于天然气，燃烧所需的点火温度在约400℃的范围内。构成氮氧化物不利源的辅助燃烧器的使用具有 因此以前是不可避免的。 为了消除这种缺点，用于燃料气体燃烧的燃气轮机，特别是燃料气体的催化燃烧，包括用于抽出部分燃料气体的导管系统，引导其通过催化预成型阶段，以将 将包含在燃料气体中的烃转化成醇和/或醛，然后再次将其送入燃料气体中以降低其着火温度。 以这种方式，从预成型阶段的燃料气体获得比较容易点燃的乙醇和/或醛的燃料。 因此与这些材料混合的燃料气体在比未燃料成分的燃料气体低得多的点燃温度下点燃。
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公开(公告)号：US4954476A
公开(公告)日：1990-09-04
申请号：US147899
申请日：1988-01-25
申请人： Erich Hums
发明人： Erich Hums
IPC分类号： C07D307/89 , B01D53/86 , B01D53/94 , B01J21/06 , C01G23/053 , C07C51/265
CPC分类号： B01J21/063 , B01D53/8628 , C07C51/265
摘要： The method produces a catalyst containing titanium oxide as a primary ingredient and is prepared from a titanium oxide-containing starting material through a titanium oxide precursor containing a suitable meta or ortho-titanic acid. Meta or ortho-titanic acid is obtained through a hydrothermal process step carried out in the presence of a suitable flocculent or colloid.
摘要翻译： 该方法产生含有氧化钛作为主要成分的催化剂，并且由含氧化钛的原料通过含有合适的间位或邻钛酸的氧化钛前体制备。 通过在合适的絮状或胶体存在下进行的水热处理步骤获得元或邻钛酸。
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公开(公告)号：US06451250B1
公开(公告)日：2002-09-17
申请号：US09491097
申请日：2000-01-24
申请人： Erich Hums , Horst Spielmann
发明人： Erich Hums , Horst Spielmann
IPC分类号： B22F300
CPC分类号： C22B1/205 , C22B1/243 , C22B7/02 , F27B21/06 , Y02P10/212
摘要： Disclosed is a method for reducing the dioxin content of the off-gas in operating a sintering plant, in which prior to sintering a material catalytically active in decomposing dioxins and in the form of fine grains or dust is admixed. The admixed catalytically active material prevents the fresh formation of dioxins and reduces the content of dioxins in the off-gas flowing through the material for sintering. The catalytically active material) is incorporated in the agglomerate of material for sintering which is forming and can be disposed of reliably and without danger via the slag formed in the following blast-furnace process.
摘要翻译： 公开了一种在烧结装置的操作中减少废气中的二恶英含量的方法，其中在烧结之前将在分解二恶英中具有催化活性的材料并以细晶粒或灰尘的形式混合。 混合的催化活性材料防止新鲜形成的二恶英并且减少流过用于烧结的材料的废气中二恶英的含量。 催化活性材料）被结合在用于烧结的材料的附聚物中，其通过在以下高炉工艺中形成的炉渣可靠而无危险地进行成形处理。
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公开(公告)号：US5971752A
公开(公告)日：1999-10-26
申请号：US122053
申请日：1998-07-24
申请人： Erich Hums
发明人： Erich Hums
CPC分类号： B01D53/8662 , B22F3/003 , F27B21/06
摘要： A sintering plant includes an apparatus for transporting sinter material along a sintering section through at least one first zone in which the sinter material heats to a low temperature, and through a second zone in which the sinter material heats to a high temperature. Discharge lines are provided along the sintering section. A dioxin catalytic converter for exhaust gas is provided in the discharge lines disposed along the second zone or directly downstream thereof. In this manner, catalytic breakdown of dioxins can be achieved even in the exhaust gas of a sintering plant, which has not been possible heretofore.
摘要翻译： 一种烧结设备包括一种用于通过烧结材料加热至低温的至少一个第一区域以及烧结材料加热至高温的第二区域沿着烧结部分输送烧结材料的设备。 沿着烧结部分设置放电线。 用于排气的二恶英催化转化器设置在沿着第二区域或其直接下游设置的排出管线中。 以这种方式，即使在烧结设备的废气中也可以实现二恶英的催化分解，这在以前是不可能的。
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10.发明授权Burner, particularly for a gas turbine, with catalytically induced combustion 失效燃烧器，特别是燃气轮机，具有催化诱导燃烧
公开(公告)号：US5950434A
公开(公告)日：1999-09-14
申请号：US989966
申请日：1997-12-12
申请人： Erich Hums , Nicolas Vortmeyer
发明人： Erich Hums , Nicolas Vortmeyer
CPC分类号： F23C13/00 , F23C13/08 , F23R3/343 , F23R3/40 , F23D2900/00014
摘要： A gas turbine and a burner to be used for all gas turbines for the catalytically induced combustion of a fuel, include a flow duct and a main burner having a fuel outlet. A catalytic supporting burner has a fuel outlet in the flow duct upstream of the fuel outlet of the main burner, as seen in the flow direction of the fuel, for stabilizing the main burner along with catalytic combustion of a pilot fuel stream. A marked reduction in nitrogen oxide emission is achieved by replacing a diffusion pilot flame with a catalytic supporting burner.
摘要翻译： 用于燃料的催化燃烧的所有燃气轮机的燃气轮机和燃烧器包括具有燃料出口的流动管道和主燃烧器。 催化支撑燃烧器在主燃烧器的燃料出口上游的流动管道中具有燃料出口，如在燃料的流动方向上看到的，用于稳定主燃烧器以及引燃燃料流的催化燃烧。 通过用催化支撑燃烧器代替扩散引燃火焰来实现氮氧化物排放的显着减少。
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