Patent · US Active

Emissions treatment systems and methods with catalyzed SCR filter and downstream SCR catalyst

US8544260B2 · kind B2 · utility

25Cited by

6References

32Claims

0Family size

Assignee

BASF SE

Inventors

R. Samuel Boorse · Skillman, US
Kenneth E. Voss · Iselin, US
Martin Dieterle · Ludwigshafen, DE

Key dates

Filing date	Dec 21, 2009
Grant date	Oct 1, 2013
Priority date	—
Expiry date	May 9, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

Emissions treatment systems and methods for treating an engine exhaust gas stream containing NOx and particulate matter are disclosed including a particulate filter comprising a first SCR catalyst for NOx conversion a second SCR catalyst for NOx conversion on a substrate disposed downstream of the particulate filter. The system NOx conversion and the system back pressure increase lie within a targeted operational window.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.