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101 条记录 (耗时 0.016 秒)

    METHOD FOR REMOVING NOx
    92.
    发明公开
    METHOD FOR REMOVING NOx 失效
    方法氮氧化物去除

    公开(公告)号：EP1063000A1

    公开(公告)日：2000-12-27

    申请号：EP98907162.6

    申请日：1998-03-11

    申请人： Hitachi Zosen Corporation

    发明人： ICHIKI, Masayoshi, Hitachi Zosen Corporation ,  AKIYAMA, Masaki, Hitachi Zosen Corporation ,  FUKUJU, Atsushi, Hitachi Zosen Corporation

    IPC分类号： B01D53/56 ,  B01J23/22

    CPC分类号： B01D53/8625 ,  Y02A50/2345 ,  Y02C20/10

    摘要： The invention provides a process for removing NOx which is free of impairment in denitration efficiency at a reaction temperature of up to 300° C even when the component molar ratio of NOx in the gas to be treated is NO 2 > NO. For use in removing NOx from the gas to be treated and containing NO 2 in a larger amount than NO, that is, having a (NO 2 )/NOx ratio in excess of 0.5, by selective reduction with use of ammonia serving as a main reducing agent in the presence of a denitration catalyst, the process of the invention for removing NOx comprises adding to the denitration reaction system a substance for removing an excess of oxygen accumulating on catalyst active sites by selectively reducing the oxygen at not higher than 300° C, for example, at 300 to 150° C, in other words, a substance which reacts with the excess of oxygen on the catalyst active sites and becomes oxidized at not higher than 300° C.

    Stack device capable of removing dust particles, sulfur oxides and nitrogen oxides
    93.
    发明公开
    Stack device capable of removing dust particles, sulfur oxides and nitrogen oxides 失效
    Schronsteinvorrichtung geeignetfürdie Abscheidung von Staub，Schwefeloxiden und Stickstoffoxiden

    公开(公告)号：EP0941756A1

    公开(公告)日：1999-09-15

    申请号：EP98850032.8

    申请日：1998-03-09

    申请人： Tai-Tien Anti Air Pollution Co., Ltd.

    发明人： Su, Wen-Shen

    IPC分类号： B01D53/60 ,  B01D53/50 ,  B01D53/75 ,  B01D53/34

    CPC分类号： B01D53/34 ,  B01D53/50 ,  B01D53/60 ,  B01D53/75 ,  Y02A50/2344 ,  Y02A50/2345

    摘要： A pollutant removing stack device includes a stack body (10) having a lower reactor section (20) that is divided by a partition (30) into an upper chamber (25) and a lower chamber (24). A first set of spraying units (22) is disposed in the lower chamber (24). A second set of spraying units (29) is disposed the upper chamber (25). A stack gas inlet is connected to the lower chamber (24) of the lower reactor section (20) for entrance of a stack gas. An oxidant supplying unit is connected to the first set of spraying units (22) in order to produce an oxidant mist in the lower chamber (24) for oxidizing a nitrogen compound contained in the stack gas into nitrogen dioxide. An alkaline solution supplying unit is connected to the second set of spraying units (29) in order to produce an alkaline mist in the upper chamber (25) for removing nitrogen dioxide and sulfur dioxide from the stack gas.

    摘要翻译： 污染物去除堆叠装置包括具有下部反应器部分（20）的堆叠体（10），所述下部反应器部分（20）被分隔件（30）分成上部腔室（25）和下部腔室（24）。 第一组喷射单元（22）设置在下腔室（24）中。 第二组喷射单元（29）设置在上腔室（25）中。 烟道气体入口连接到下部反应器部分（20）的下部腔室（24），用于进入烟道气体。 氧化剂供给单元连接到第一组喷射单元（22），以在下室（24）中产生氧化剂雾，用于将堆叠气体中包含的氮化合物氧化成二氧化氮。 碱性溶液供给单元连接到第二组喷射单元（29），以在上部室（25）中产生用于从堆叠气体中除去二氧化氮和二氧化硫的碱性雾。

    FLUE GAS SCRUBBING AND WASTE HEAT RECOVERY SYSTEM
    96.
    发明公开
    FLUE GAS SCRUBBING AND WASTE HEAT RECOVERY SYSTEM 失效
    烟雾和热量洗黑钱回收

    公开(公告)号：EP0828550A1

    公开(公告)日：1998-03-18

    申请号：EP96914032.0

    申请日：1996-05-29

    申请人： Thermal Energy International Inc.

    发明人： HINKE, Thomas, V. ,  TRIEBE, Rob ,  HINKE, Joseph

    IPC分类号： B01D53

    CPC分类号： B01D53/346 ,  B01D53/343 ,  B01D53/56 ,  B01D53/60 ,  F23J2215/10 ,  F23J2217/50 ,  F23J2219/40 ,  Y02A50/2344 ,  Y02A50/2345 ,  Y02C20/10

    摘要： A system and method for the reduction of NOx in a flue gas are disclosed. A P4 in water liquid/liquid emulsion is injected into a flue gas having a temperature of about 180 DEG C. to about 280 DEG C. to induce phosphorus-accelerated oxidation of the NO in the flue gas. NO2 and phosphorus oxides are subsequently removed from the flue gas stream at a location sufficiently downstream of the injection site that the oxidation of NO in the flue gas is substantially complete prior to the removal of NO2. This significantly improves the NOx recovery rate of the present system and method over those of the prior art. The system can be retrofitted to the waste gas stream of any stationary combustion source regardless of the fuel burned. The system is advantageously used in connection with a wet scrubber for the removal of NO2 and other water soluble flue gas components. Injection of the emulsion results in the creation of ozone by means of the controlled oxidation of white phosphorus. The ozone reacts with nitrogen oxide (NO), which generally accounts for 90% of flue gas NOx, to produce nitrogen dioxide (NO2). The reaction products (NO2 and the P4O10,) can be removed from the flue gas together with SO2 and particulates in the wet scrubber wherein they are efficiently transferred from the gaseous phase to the buffered scrubbing liquid. In the scrubber, the temperature gradient is preferably set through the dew point, so that it recovers both latent as well as sensible heat energy from the flue gas which energy can be sold to commercial or residential consumers to recover at least a part of the capital costs (purchase and operation) associated with the system.

    Verfahren zur Abscheidung von Stickstoffoxiden aus bereits weitgehend in einer Waschstufe entschwefelten Rauchgase
    100.
    发明公开
    Verfahren zur Abscheidung von Stickstoffoxiden aus bereits weitgehend in einer Waschstufe entschwefelten Rauchgase 失效
    处理氮氧化物从已经在洗涤步骤中的烟气脱硫很大程度上沉积。

    公开(公告)号：EP0199037A2

    公开(公告)日：1986-10-29

    申请号：EP86103119.3

    申请日：1986-03-08

    申请人： WALTHER & CIE. AKTIENGESELLSCHAFT

    发明人： Baer, Edmund, Dr.-Ing. ,  Bechthold, Horst, Dr.-Ing.

    IPC分类号： B01D53/34

    CPC分类号： B01D53/56 ,  B01D2251/20 ,  B01D2251/404 ,  B01D2251/604 ,  Y02A50/2345

    摘要： Die Erfindung betrifft ein Verfahren zur Abscheidung. von Stickstoffoxiden aus bereits weitgehend entschwefelten Rauchgasen. Der NO-Anteil der Stickstoffoxide wird unter Einsatz von Ozon oder anderen Oxidantien zur Verbesserung der Wasserlöslichkeit in NO 2 übergeführt und der gesamte entschwefelte und aufoxidierte Gasstrom anschließend einem Waschprozeß unterworfen. In dem nachgeschalteten Waschprozeß wird der Waschlösung als reduzierend wirkende Substanzen Alkali-bzw. Erdalkalisulfite zugesetzt, die das in der Waschlösung absorbierte NO 2 zu N 2 reduzieren, wobei die reduzierend wirkenden Substanzen zu den entsprechenden Sulfaten oxidiert werden.

    摘要翻译： 为了改善在水中的溶解性，所述氮氧化物的NO含量使用臭氧或其他氧化剂转化成NO 2，和总的脱硫，然后氧化气体流经受下游洗涤方法，其中碱金属亚硫酸盐或碱土金属 亚硫酸盐，其中在降低洗涤液到N2吸收的NO 2，被添加到洗涤液作为具有还原作用的物质和被氧化为相应的硫酸盐。