Effect of preparation procedure on the catalytic properties of Fe-ZSM-5 as SCR catalyst
Journal article, 2013

Fe-ZSM-5 catalysts, prepared by different methods, have been characterized by BET, ICP-AES, XRD, XPS, NH3-TPD and NO-TPD and evaluated for NOx reduction according to standard NH3-SCR, NH3 oxidation and NO oxidation, in absence and presence of water. The presence of water has a significant influence on both the SCR and oxidation reactions. The most active catalyst for NH3-SCR is prepared by ion exchange using FeCl2 as iron precursor. The XPS results indicate that Fe2+ ions are the main active sites for the SCR reactions, while Fe3+ ions are the primarily active sites for oxidation of ammonia.

Environmental catalysis

Ion-exchange

Ammonia oxidation

Incipient wetness impregnation

Exhaust after-treatment

Selective catalytic reduction

Author

Alexander Shishkin

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Per-Anders Carlsson

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Hanna Härelind

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Magnus Skoglundh

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Topics in Catalysis

1022-5528 (ISSN) 1572-9028 (eISSN)

Vol. 56 9-10 567-575

Driving Forces

Sustainable development

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Transport

Energy

Materials Science

Subject Categories

Physical Chemistry

Chemical Process Engineering

DOI

10.1007/s11244-013-0016-3

More information

Latest update

10/28/2018