Patent · US Active

Emission treatment catalysts, systems and methods

US9993771B2 · kind B2 · utility

6Cited by

27References

21Claims

0Family size

Assignee

BASF SE

Inventors

Kenneth E. Voss · Iselin, US
Kevin A. Hallstrom · Iselin, US
Sanath Kumar · Woodbridge, US
Susanne Stiebels · Adenbüttel, DE
Marius Vaarkamp · Utrecht, NL

Key dates

Filing date	Jun 15, 2009
Grant date	Jun 12, 2018
Priority date	—
Expiry date	Nov 23, 2032

Classification

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

Abstract

Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described.

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