The Toad in the Garden: Thatcherism among the Theorists'in

The Toad in the Garden: Thatcherism among the Theorists'in
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花园里的蟾蜍:理论家中的撒切尔主义

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发表时间:
1988
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通讯作者:
S. Hall
S. Hall
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作者:
S. Hall

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提出了一种系统,用于净化来自内燃机的废气,优选地减少来自内燃机的废气中的氮氧化物,其中氮被选择性地形成为实质上唯一含氮的产物。废气在高温下与还原气氛中的贵金属接触,其中氮氧化物被选择性地转化为氮,作为实质上唯一含氮的产物,和/或与氧化气氛中的贵金属接触,其中一氧化碳和未燃烧的碳氢化合物被转化为二氧化碳和水,所述贵金属被膨胀在微孔玻璃体上。在优选实施方案中,废气在高温下在还原气氛中与支撑在微孔玻璃体上的钌接触,该微孔玻璃体包括浸出的、相分离的碱硼硅酸盐。
A system is proposed for the purification of exhaust gases from internal combustion engines, preferably the reduction of nitrogen oxides in exhaust gases from internal combustion engines in which nitrogen is selectively formed as substantially the only nitrogen-containing product. The exhaust gas is contacted at an elevated temperature with a noble metal in a reducing atmosphere, wherein nitrogen oxides are selectively converted to nitrogen as substantially the only nitrogen containing product, and/or is contacted with a noble metal in an oxidizing atmosphere, wherein carbon monoxide and unburned hydrocarbons are converted to carbon dioxide and water, said noble metal being distended on a microporous glass body. In a preferred embodiment the exhaust gas is contacted at an elevated temperature in a reducing atmosphere with ruthenium supported on a microporous glass body comprising a leached, phase-separated alkali borosilicate.