Apparatus and process for the catalytic NOx-reduction in oxygen-containing engine exhaust gases

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专利权人:

MAN NUTZFAHRZEUGE AKTIENGESELLSCHAFT

发明人:

EBERHARD, JACOB, DR.

申请号：

EP19980111235

公开号：

EP0896831(A1)

申请日:

1998.06.18

申请国别(地区):

欧洲专利局

年份:

1999

代理人:

摘要：

Catalytic reduction of nitrogen oxides (NOx) in engine exhaust gases containing oxygen (O2), using urea as reducing agent, uses a coating on the vaporizer (6) to give it significant NOx reduction activity, so that it reduces the load on the subsequent reduction catalyst or completely replaces this and reduces NOx at 150-650 degrees C. Also claimed is apparatus with a coated vaporizer giving this result.

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