Catalyst for purifying exhaust emission from internal combustion engine, method for preparation thereof and method for purifying exhaust emission from internal combustion engine
US7740817B2 · kind B2 · utility
13Cited by
22References
24Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 14, 2003 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Sep 2, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst which efficiently removes particulate matter, SOF, sulfate, and SOOT and the like from the exhaust gas from such an internal combustion engine as a diesel engine without inducing a rise in the back pressure of the engine is provided. The catalyst for the purification of the exhaust gas of an internal combustion engine is formed by using an open flow honeycomb containing in the channel walls thereof such pores as possess an average diameter in the range of 10-40 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.