Alkali metal/alkaline earth lean NOx catalyst
    6.
    发明授权
    Alkali metal/alkaline earth lean NOx catalyst 失效
    碱金属/碱土稀土氧化物催化剂

    公开(公告)号:US06624113B2

    公开(公告)日:2003-09-23

    申请号:US09805677

    申请日:2001-03-13

    IPC分类号: B01J2302

    摘要: One embodiment of a non-precious metal catalyst for treating an exhaust gas stream comprises an alkali metal oxide component comprising lithium oxide, in combination with an alkaline earth support component, wherein the alkaline earth support component is an alkaline earth zeolite catalyst, an alkaline earth alumina catalyst, or a mixture thereof. Another embodiment of a non-precious metal catalyst for treating an exhaust gas stream comprises a substrate supporting a coating having more than about 6 weight percent of a lithium oxide component in combination with less than about 49 weight percent of an barium zeolite catalyst component and less than about 42 weight percent of a barium alumina catalyst component and not more than about 7 weight percent of a ceramic oxide binder.

    摘要翻译: 用于处理废气流的非贵金属催化剂的一个实施方案包括与碱土金属载体组分组合的包含氧化锂的碱金属氧化物组分,其中碱土金属载体组分是碱土金属沸石催化剂,碱土金属 氧化铝催化剂或其混合物。 用于处理废气流的非贵金属催化剂的另一个实施方案包括支撑具有大于约6重量%的氧化锂组分与少于约49重量%的钡沸石催化剂组分的少于约6重量% 约42重量%的钡氧化铝催化剂组分和不超过约7重量%的陶瓷氧化物粘合剂。

    Gas treatment device comprising SMSI material and methods for making and using the same
    8.
    发明授权
    Gas treatment device comprising SMSI material and methods for making and using the same 有权
    包含SMSI材料的气体处理装置及其制造和使用方法

    公开(公告)号:US06774080B2

    公开(公告)日:2004-08-10

    申请号:US10303616

    申请日:2002-11-25

    IPC分类号: B01J3100

    摘要: A gas treatment device, comprises a substrate disposed within a shell. The substrate comprises a catalyst composition comprising a support, a catalyst, and a sufficient amount of SMSI material such that, upon exposure to a gas stream (at a gas treatment device operating temperature), less than or equal to about 35 wt % of hydrocarbons in the gas stream are burned. A method for forming a gas treatment device, comprises applying a slurry to a substrate, wherein the slurry comprises a support and a sufficient amount of SMSI material such that, upon exposure to a gas stream at a gas treatment device operating temperature, greater than or equal to about 50 wt % of hydrocarbons in the gas stream are cracked to a light fraction; applying a catalyst to the substrate; calcining the catalyst; and disposing the calcined substrate into a shell, with a retention material disposed between the shell and the calcined substrate.

    摘要翻译: 一种气体处理装置,包括设置在壳体内的基板。 底物包括催化剂组合物,其包含载体,催化剂和足量的SMSI材料,使得当暴露于气流(在气体处理装置工作温度下)时,小于或等于约35重量%的烃 一种用于形成气体处理装置的方法,包括将浆料施加到基材上,其中所述浆料包含载体和足量的SMSI材料,使得在气体处理下暴露于气流时 装置工作温度大于或等于约50重量%的气流中的烃被破裂成轻馏分; 将催化剂施加到基材上; 煅烧催化剂; 并将煅烧的基底设置在壳体中,其中保留材料设置在壳体和煅烧的基底之间。