Method and apparatus for combination catalyst for reduction of NOx in combustion products
US7803338B2 · kind B2 · utility
31Cited by
46References
15Claims
0Family size
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Key dates
| Filing date | Jun 21, 2005 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Jul 20, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2370/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for catalytically processing a gas stream passing therethrough to reduce the presence of NOx therein, wherein the apparatus includes a first catalyst composed of a silver containing alumina that is adapted for catalytically processing the gas stream at a first temperature range, and a second catalyst composed of a copper containing zeolite located downstream from the first catalyst, wherein the second catalyst is adapted for catalytically processing the gas stream at a lower second temperature range relative to the first temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.