CATALISADOR E PROCESSO PARA A DIMINUICAO DE OXIDOS DE NITROGENIO EM GAS DE ESCAPE POBRE DE MOTORES AUTOMOTIVOS
The invention relates to a catalyst for decreasing nitrogen oxide in the lean exhaust gas of automobile engines. On a structurally reinforcing body, it contains a first catalytic coating of a high surface area aluminium oxide and/or cerium oxide impregnated with a mixture of iridium and platinum as...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | Portuguese |
Published |
08.09.1993
|
Edition | 5 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to a catalyst for decreasing nitrogen oxide in the lean exhaust gas of automobile engines. On a structurally reinforcing body, it contains a first catalytic coating of a high surface area aluminium oxide and/or cerium oxide impregnated with a mixture of iridium and platinum as catalytically active noble metal components. On the first layer is applied a second catalytic coating of a zeolite which contains copper and/or iron and is of the mordenite type. |
---|---|
Bibliography: | Application Number: BR19939300731 |