发明授权
US06176079B1 Process and apparatus for reducing nitrogen-oxide emissions in exhaust gas
失效
用于减少废气中氮氧化物排放的方法和装置
- 专利标题： Process and apparatus for reducing nitrogen-oxide emissions in exhaust gas
- 专利标题（中）： 用于减少废气中氮氧化物排放的方法和装置
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申请号： US09307731申请日： 1999-05-10
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公开(公告)号： US06176079B1公开(公告)日： 2001-01-23
- 发明人: Brigitte Konrad , Bernd Krutzsch , Dirk Voigtlaender
- 申请人： Brigitte Konrad , Bernd Krutzsch , Dirk Voigtlaender
- 优先权： DE19820828 19980509
- 主分类号： F01N300
- IPC分类号： F01N300
摘要：
A method of cleaning an exhaust gas from a combustion system that is operated alternately in lean and rich conditions includes intermediately storing nitrogen oxides during lean operation; releasing the stored nitrogen oxides, thereby producing ammonia and storing the ammonia during rich operation; releasing the ammonia, thereby reducing nitrogen oxides in a subsequent lean condition.
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