Patent · US Active

SCR catalyst system and method for the operation thereof

US8551433B2 · kind B2 · utility

0Cited by

1References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Fritsch · Eggstätt, DE
Andreas Holzeder · Zusmarshausen, DE

Key dates

Filing date	Sep 14, 2012
Grant date	Oct 8, 2013
Priority date	—
Expiry date	Sep 14, 2032

Classification

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

Abstract

A SCR catalyst system, comprising a first SCR catalyst (1) and a second SCR catalyst (2) which is disposed in the exhaust gas tract downstream of the first SCR catalyst (1). At least one metering device (12) for metering in a reducing agent solution is disposed in the exhaust gas tract upstream of a first SCR catalysis element (13) of said first SCR catalyst (1). The SCR catalyst system does not require a device for metering a reducing agent solution into a second SCR catalysis element (21) of the second SCR catalyst (2).

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