ECN publication
Ceramic honeycombs coated with zeolite ZSM-5 for NOx abatement
Published by: Publication date:
ECN 1995
ECN report number: Document type:
ECN-RX--95-022 Other
Number of pages: Full text:
17 Download PDF  

A pentasil type of zeolite, ZSM-5, containing one of the cations: Na, Coor Cu in their structure, was wash-coated on a cordierite ceramic honeycomb using an alumina or silica binder. Binder content in the wash-coat was varied from 14 to 22 wt.%. A wash-coat with approximately 16 - 20 wt % binder gave the highest loading and good binding to the cordierite surface. Catalytic activity was measured on some samples of zeolite based honeycombs with a different cation loading and different binder. The highest NOx abatement, approximately 80 %, was measured for the Cu-ZSM-5 catalyst coated with the silica binder and the Co-ZSM-5 catalyst coated with the alumina binder. 8 figs., 1 tab., 8 refs.

Back to List