Porous material, method and arrangement for catalytic conversion of exhaust gases
US6887815B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Sep 27, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/186
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Porous material (1) for catalytic conversion of exhaust gases including a carrier with a first porous structure (2, 2′), and an oxidation catalyst (OX) which in the presence of oxygen (O2), according to a first reaction (3), has the ability to catalyze oxidation of nitrogen monoxide (NO) into nitrogen dioxide (NO2) and, according to a second reaction (4, 4′), to catalyze oxidation of a reducing agent (HC), which oxidation catalyst (OX) is enclosed inside the first porous structure (2, 2′). The invention is characterized in that the oxidation catalyst (OX) includes iron (Fe) and silver (Ag) loaded on a zeolite. The invention also relates to a method and an arrangement and a catalytic conversion device that utilizes the porous material, and indicates an advantageous use of the porous material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.