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
DOI:
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发表时间:
1988
期刊:
影响因子:
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通讯作者:
S. Hall
中科院分区:
文献类型:
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作者:
S. Hall
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.