The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2
Abstract
Poisoning effects by alkali metal chlorides is one of the major reasons for the deactivation of SCR catalyst in biomass-fired plants. In this study, the influence of KCl on two vanadium-based catalysts with different promoters, V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2, was investigated. The catalytic activity of the fresh V2O5-WO3/TiO2 was higher than that of V2O5-Ce(SO4)(2)/TiO2 at low temperatures. V2O5-Ce(SO4)(2)/TiO2 performed better than V2O5-WO3/TiO2 when KCl was deposited on the catalyst surface. Both poisoned catalysts were efficiently regenerated by SO2 treatment. The characterization results show that the reducibility and acidity of the catalysts were weakened by KCl deposition but regenerated by SO2.
Keywords:
alkali-poisoning / KCl / NH3-SCR / SO2 regenerationSource:
Catalysts, 2020, 10, 2Publisher:
- MDPI, BASEL
Funding / projects:
- National Natural Science Foundation of China (NSFC) [51506015]
- Chongqing Technology Innovation and Application Demonstration Projects [cstc2018jscx-msyb0999]
- Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [2018CDQYDL0050, 2018CDJDDL0004]
- Open Fund of Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education of China [LLEUTS-2019002]
DOI: 10.3390/catal10020207
ISSN: 2073-4344
WoS: 000519998900065
Scopus: 2-s2.0-85079655701
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Nie, Hua AU - Li, Wei AU - Wu, Qirong AU - Rac, Vladislav AU - Rakić, Vesna AU - Du, Xuesen PY - 2020 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5343 AB - Poisoning effects by alkali metal chlorides is one of the major reasons for the deactivation of SCR catalyst in biomass-fired plants. In this study, the influence of KCl on two vanadium-based catalysts with different promoters, V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2, was investigated. The catalytic activity of the fresh V2O5-WO3/TiO2 was higher than that of V2O5-Ce(SO4)(2)/TiO2 at low temperatures. V2O5-Ce(SO4)(2)/TiO2 performed better than V2O5-WO3/TiO2 when KCl was deposited on the catalyst surface. Both poisoned catalysts were efficiently regenerated by SO2 treatment. The characterization results show that the reducibility and acidity of the catalysts were weakened by KCl deposition but regenerated by SO2. PB - MDPI, BASEL T2 - Catalysts T1 - The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2 IS - 2 VL - 10 DO - 10.3390/catal10020207 ER -
@article{ author = "Nie, Hua and Li, Wei and Wu, Qirong and Rac, Vladislav and Rakić, Vesna and Du, Xuesen", year = "2020", abstract = "Poisoning effects by alkali metal chlorides is one of the major reasons for the deactivation of SCR catalyst in biomass-fired plants. In this study, the influence of KCl on two vanadium-based catalysts with different promoters, V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2, was investigated. The catalytic activity of the fresh V2O5-WO3/TiO2 was higher than that of V2O5-Ce(SO4)(2)/TiO2 at low temperatures. V2O5-Ce(SO4)(2)/TiO2 performed better than V2O5-WO3/TiO2 when KCl was deposited on the catalyst surface. Both poisoned catalysts were efficiently regenerated by SO2 treatment. The characterization results show that the reducibility and acidity of the catalysts were weakened by KCl deposition but regenerated by SO2.", publisher = "MDPI, BASEL", journal = "Catalysts", title = "The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2", number = "2", volume = "10", doi = "10.3390/catal10020207" }
Nie, H., Li, W., Wu, Q., Rac, V., Rakić, V.,& Du, X.. (2020). The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2. in Catalysts MDPI, BASEL., 10(2). https://doi.org/10.3390/catal10020207
Nie H, Li W, Wu Q, Rac V, Rakić V, Du X. The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2. in Catalysts. 2020;10(2). doi:10.3390/catal10020207 .
Nie, Hua, Li, Wei, Wu, Qirong, Rac, Vladislav, Rakić, Vesna, Du, Xuesen, "The Poisoning of V2O5-WO3/TiO2 and V2O5-Ce(SO4)(2)/TiO2 SCR Catalysts by KCl and The Partial Regeneration by SO2" in Catalysts, 10, no. 2 (2020), https://doi.org/10.3390/catal10020207 . .