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- Title
Application of Mesoporous/Hierarchical Zeolites as Catalysts for the Conversion of Nitrogen Pollutants: A Review.
- Authors
Rutkowska, Małgorzata; Chmielarz, Lucjan
- Abstract
Mesoporous/hierarchical zeolites (HZs) are a relatively new group of materials, and interest in their application in catalysis is continuously growing. This paper presents recent achievements in the application of mesoporous zeolites in catalytic reactions of nitrogen pollutant conversion. The analysis presented includes processes such as selective catalytic reduction of NOx with ammonia (NH3-SCR, DeNOx), selective catalytic oxidation of ammonia (NH3-SCO, AMOx), and catalytic decomposition of N2O. Different zeolite topologies and methods of their modification focused on mesoporosity generation (e.g., desilication, dealumination, steaming, self-assembly techniques, and application of hard and soft templates) are reviewed and compared with respect to catalytic processes. Special attention is paid to the role of porous structure and acidity, as well as the form of deposited transition metals, in the catalytic activation of modified zeolites in the elimination of nitrogen pollutants from flue gases.
- Subjects
ZEOLITES; POLLUTANTS; SELECTIVE catalytic oxidation; FLUE gases; CATALYTIC reduction; CATALYSTS
- Publication
Catalysts (2073-4344), 2024, Vol 14, Issue 5, p290
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal14050290