会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • DEVICE AND METHOD FOR ELIMINATING NOX AND N2O
    • 去除NOX和N2O的装置和方法
    • WO2013087181A3
    • 2013-08-22
    • PCT/EP2012005082
    • 2012-12-08
    • THYSSENKRUPP UHDE GMBH
    • SCHWEFER MEINHARDSIEFERT ROLFPINNOW STEFAN
    • B01D53/86
    • B01D53/869B01D53/8628B01D53/8631B01D53/8696B01D2255/1025B01D2255/20738B01D2255/20746B01D2255/20753B01D2255/20761B01D2255/50B01D2255/9202B01D2257/402B01D2257/404Y02C20/10
    • A device and a method are described for lowering the content of NOx and N2O in gases. The device comprises: A) a container (1) and, arranged therein, B) two reaction steps connected one after the other for removing NOx (DeNOx stage) by reducing NOx with a nitrogen-containing reducing agent and, downstream thereof, for removing N2O by catalytic decomposition of N2O to N2 and O2 (DeN2O stage), which each consist of one or more catalyst beds (7, 8) and through which the gas that is to be purified flows, wherein C) the at least one catalyst bed of the DeNOx stage (7) contains a catalyst for reducing NOx with nitrogen-containing reducing agents which catalyst contains zeolites doped with transition metals, including the lanthanides, D) the at least one catalyst bed of the DeN2O-stage (8) contains a catalyst for decomposing N2O into N2 and O2, which contains one or more catalytically active compounds of elements selected from groups 5 to 11 of the Periodic Table of the Elements with the exception of iron-doped zeolites, and E), upstream of the DeNOx stage (7), a device for introducing a nitrogen-containing reducing agent into the stream of the NOx and N2O-containing gas is provided. The combination used according to the invention of catalysts permits a very simple structure and a very economic operation of the reactor.
    • 公开了一种用于降低气体中NOx和N2O水平的设备和方法。 该装置包括:A)一个容器(1)和设置在其中的B)两个串联连接的反应阶段为通过含NOx的具有氮还原剂的还原NOx的去除(脱硝阶段),以及下游,用于通过催化分解去除N2O的 N2O成N 2和O 2(DeN2O阶段),每个由一个或多个催化剂床(7,8),并且通过由所述气体流至待清洁,其中C)的脱硝阶段(7)的至少一个催化剂床 用于NO x的与过渡金属含有含氮还原剂,包括镧系元素还原的催化剂,掺杂的,d)沸石,所述DeN2O级的至少一个催化剂床(8)中包含N 2 O的分解催化剂成N 2和O 2, 选自周期表第5至11族的一种或多种催化活性化合物 除与铁掺杂的沸石的元素包含,和含N2O-E)(前的脱硝阶段7)用于引入在NOx和的流被提供含氮还原剂的装置的气体。 用于本发明的催化剂的组合允许反应器的非常简单的构造和非常经济的操作。