Economic viability and overall performance analysis of optimized Cu-Fe-ZSM-5 catalyst for NOx and particulate matter removal using NH3-SCR

•Sulphur poisoning resistance shown by the bimetallic catalyst was remarkable considering that the catalyst was loaded with only 3% by weight of Cu and Fe together.•The Cu-Fe synergy as an NH3-SCR catalyst for wider temperature range is strengthened and validated through emission coefficient and N2...

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Bibliographic Details
Published in:Fuel (Guildford) 2025-02, Vol.381, p.133435, Article 133435
Main Authors: Shirke, Shivani, Chou, Feng-Chih, Wang, Yu-Zheng, Lin, Yuan-Chung
Format: Article
Language:English
Subjects:
Cost-benefit analysis
Cu-Fe-ZSM-5
Emission coefficient
NH3-SCR
Sulphur poisoning
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Summary:•Sulphur poisoning resistance shown by the bimetallic catalyst was remarkable considering that the catalyst was loaded with only 3% by weight of Cu and Fe together.•The Cu-Fe synergy as an NH3-SCR catalyst for wider temperature range is strengthened and validated through emission coefficient and N2 selectivity outcomes.•A primary level cost benefit analysis for the small scale mass production of the zeolite and catalyst was prepared. The necessity of a broader working temperature range of NH3-SCR catalysts has been considered as the need of the hour to tackle air pollutants like NOx and particulate matter (PM). The catalysts currently being used pose varied difficulties in the form of sulphur poisoning, inadequate temperature range, catalyst regeneration etc. An innovative and economic bimetallic combination of Cu-Fe on ZSM-5 with minimum weight percentage of metals and optimum efficiency has been synthesized in this study. In this research, we further focus on this Cu-Fe combination, to understand its feasibility for commercial applications. This bimetallic combination, used on the self-synthesized zeolite (ZSM-5), showed a consistent NOx removal efficiency of above 90% over the entire test temperature range, when compared with a commercially available zeolite. This Cu-Fe combination catalyst performed outstandingly in resisting sulphur poisoning and had NOx and PM emission coefficients well below the standard emissions control of Taiwan. It showed a good N2 selectivity as well. The study also analyses the cost-benefit ratio for the production of this catalyst for industrial applications with an annual net profit of around 14,66,124.09 USD for five parallel units.
ISSN:0016-2361
DOI:10.1016/j.fuel.2024.133435