Resource utilization strategy based on the deactivation mechanism of V2O5-WO3/TiO2 catalyst

[Display omitted] •The synergistic effects of multiple factors on the SCR performance of VWTi catalysts were reviewed.•Summarizes the research progress in enhancing the catalytic performance of catalysts.•Discusses the technological progress of resource utilization of spent VWTi catalysts.•Prospects the research significance of secondary reactions during flue gas migration on catalyst deactivation. The NH3-SCR technology using V2O5-WO3/TiO2 (VWTi) catalyst has been widely used to reduce nitrogen oxide emissions from coal-fired power plants. However, the instability of working conditions and complex flue gas components impair catalyst performance and even lead to catalyst deactivation. This article first briefly summarizes the research results on the structure–activity relationship of VWTi catalysts in recent years. Then, we focused on summarizing the synergistic effects of various factors on the SCR performance of VWTi catalysts aiming to provide a comprehensive understanding of its antitoxicity properties. At the same time, this article introduces methods to extend catalyst life, such as improving anti-poisoning resistance and developing new regeneration technologies. Finally, this article reviews the research on resource utilization of spent VWTi catalysts, including regeneration methods and element extraction technology. This knowledge provides a theoretical basis for solving problems in practical applications of catalysts.