发明名称 |
Exhaust Gas Catalytic Converter System And Method For Operating An Exhaust Gas Catalytic Converter |
摘要 |
A method is disclosed for operating an exhaust gas catalytic converter designed to reduce nitrogen oxides in an exhaust gas flow using a solution that contains urea and that reacts to form at least ammonia in the exhaust gas flow. The method may include: introducing an amount of the solution containing urea upstream of the exhaust gas catalytic converter until an ammonia slip through the exhaust gas catalytic converter; determining a first actual value of the loading state of the catalytic converter with ammonia at the time of the slip; determining a first estimated value of the loading state at the time of the slip by means of a dynamic model for the loading; subsequently draining the ammonia from the catalytic converter; determining a second actual value of the loading state of the exhaust gas catalytic converter with the solution containing urea when the catalytic converter is drained as specified.
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申请公布号 |
US2013287657(A1) |
申请公布日期 |
2013.10.31 |
申请号 |
US201213979267 |
申请日期 |
2012.01.05 |
申请人 |
RODATZ PAUL;NIENHOFF MICHAEL |
发明人 |
RODATZ PAUL;NIENHOFF MICHAEL |
分类号 |
B01D53/94 |
主分类号 |
B01D53/94 |
代理机构 |
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代理人 |
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地址 |
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