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公开(公告)号:EP4229282A1
公开(公告)日:2023-08-23
申请号:EP21791033.0
申请日:2021-10-19
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公开(公告)号:EP3557016B1
公开(公告)日:2020-10-28
申请号:EP19170412.1
申请日:2019-04-19
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3.
公开(公告)号:EP4215728A1
公开(公告)日:2023-07-26
申请号:EP23151941.4
申请日:2023-01-17
发明人: TSINOGLOU, Dimitrios , PIDRIA, Marco Federico , KOIRALA, Rajesh , WACHTER, Ralph , MERLONE BORLA, Edoardo
IPC分类号: F01N3/20 , F01N3/36 , F01N13/00 , B01D53/94 , B01J29/072 , B01J29/076 , F01N9/00
摘要: An exhaust gas after-treatment system for a Diesel engine including a first Selective Reduction Catalyst SCR (SCR1) coupled with a second SCR (SCR2) of the iron-zeolite arranged immediately downstream of the first SCR according to a gas stream circulation and a urea based reducing agent doser (INJ1) arranged immediately upstream of the first SCR, according to said gas stream circulation, and hydrocarbons introducing means arranged to introduce hydrocarbons in the after-treatment system in order to cooperate with said second SCR to convert N2O produced by said first SCR.
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公开(公告)号:EP4215727A1
公开(公告)日:2023-07-26
申请号:EP23151810.1
申请日:2023-01-16
发明人: TSINOGLOU, Dimitrios , PIDRIA, Marco Federico , KOIRALA, Rajesh , MERLONE BORLA, Edoardo , WACHTER, Ralph
IPC分类号: F01N3/20 , F01N3/36 , F01N13/00 , B01D53/94 , B01J29/072 , B01J29/076 , F01N9/00
摘要: An exhaust gas after-treatment device for a Diesel engine including a first Selective Reduction Catalyst SCR (SCR1) of the titania-vanadia coupled with a second SCR (SCR2) of the iron-zeolite arranged immediately downstream of the first SCR according to a gas stream circulation and wherein one urea based reducing agent doser (INJ1) is arranged immediately upstream of the first SCR, according to said gas stream circulation. Optionally an additional hydrocarbon doser (INJ2) being between the first and the second SCRs, which raises the exhaust gas temperature for the SCRs.
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