公开(公告)号：US20200263586A1

公开(公告)日：2020-08-20

申请号：US16869622

申请日：2020-05-08

Applicant: BASF Corporation

Inventor： Kevin Hallstrom ,  David Youngren ,  Yuejin Li

IPC: F01N3/28 ,  F01N3/20 ,  F01N3/035 ,  F01N3/08 ,  B01D53/94 ,  B01J35/04 ,  B01J23/89 ,  B01J29/76 ,  B01J37/02

Abstract: The present disclosure is directed to a system for treating an exhaust gas stream from an engine, which includes a diesel oxidation catalyst (DOC) located downstream of the engine and adapted for oxidation of hydrocarbons and carbon monoxide, an injector adapted for the addition of a reductant to the exhaust gas stream located downstream of the DOC, a catalyzed soot filter (CSF) located downstream of the injector, and a selective catalytic reduction component adapted for the oxidation of nitrogen oxides located downstream of the CSF. The CSF is adapted for oxidizing hydrocarbons and includes a selective oxidation catalyst composition on a filter with high selectivity ratio for hydrocarbon oxidation: ammonia oxidation (e.g., at least 0.6).

公开(公告)号：US20230027701A1

公开(公告)日：2023-01-26

申请号：US17935179

申请日：2022-09-26

Applicant: BASF CORPORATION

Inventor： Kevin Hallstrom ,  David Youngren ,  Yuejin Li

IPC: F01N3/28 ,  B01D53/94 ,  B01J23/89 ,  B01J29/76 ,  B01J35/04 ,  B01J37/02 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20

Abstract: The present disclosure is directed to a system for treating an exhaust gas stream from an engine, which includes a diesel oxidation catalyst (DOC) located downstream of the engine and adapted for oxidation of hydrocarbons and carbon monoxide, an injector adapted for the addition of a reductant to the exhaust gas stream located downstream of the DOC, a catalyzed soot filter (CSF) located downstream of the injector, and a selective catalytic reduction component adapted for the oxidation of nitrogen oxides located downstream of the CSF. The CSF is adapted for oxidizing hydrocarbons and includes a selective oxidation catalyst composition on a filter with high selectivity ratio for hydrocarbon oxidation:ammonia oxidation (e.g., at least 0.6).

公开(公告)号：US11486288B2

公开(公告)日：2022-11-01

申请号：US16869622

申请日：2020-05-08

Applicant: BASF Corporation

Inventor： Kevin Hallstrom ,  David Youngren ,  Yuejin Li

IPC: F01N3/28 ,  B01D53/94 ,  B01J23/89 ,  B01J29/76 ,  B01J35/04 ,  B01J37/02 ,  F01N3/035 ,  F01N3/08 ,  F01N3/20

Abstract: The present disclosure is directed to a system for treating an exhaust gas stream from an engine, which includes a diesel oxidation catalyst (DOC) located downstream of the engine and adapted for oxidation of hydrocarbons and carbon monoxide, an injector adapted for the addition of a reductant to the exhaust gas stream located downstream of the DOC, a catalyzed soot filter (CSF) located downstream of the injector, and a selective catalytic reduction component adapted for the oxidation of nitrogen oxides located downstream of the CSF. The CSF is adapted for oxidizing hydrocarbons and includes a selective oxidation catalyst composition on a filter with high selectivity ratio for hydrocarbon oxidation:ammonia oxidation (e.g., at least 0.6).