Mechanistic investigation of Sm doping effects on SO2 resistance of W-Zr-ZSM-5 catalyst for NH3-SCR

Feng, Shuo; Kong, Wenwen; Wang, Yanli; Xing, Yuye; Wang, Zhuozhi; Ma, Jun; Shen, Boxiong; Chen, Long; Yang, Jiancheng; Li, Zhaoming; Zhang, Chenguang

doi:10.1016/j.fuel.2023.129139

Cited by 8 publications

(2 citation statements)

References 65 publications

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“…For the optimized CuÀ ZSM-5-ZrO 2 (2 wt %) catalyst, a high level of catalytic recovery of NO x conversion was reported (below 300 °C), comparable with the non-poisoned catalyst. [85] Other catalysts including CoÀ Mn/ZSM-5, [72] Gd-MnO x /ZSM-5, [86] FeÀ WÀ Ni/ZSM-5 [87] or WÀ Zr/ZSM-5 [88,89] showed strong resistance against poisoning in SO 2 and H 2 O. Here the NO conversion did not change in the presence of 5 vol.…”

Section: Effects Of Sulfur Poisoning and Hydrothermal Stabilitymentioning

confidence: 94%

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Jabłońska,

Potter,

Beale

2024

ChemCatChem

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Transition metal‐containing MFI‐based catalysts are widely investigated in the selective catalytic reduction of NOx with ammonia (NH3‐SCR‐DeNOx), and the selective catalytic oxidation of ammonia (NH3‐SCO) into nitrogen and water vapor. While MFI‐based catalysts are less intensively studied than smaller pore zeolites (i.e., chabazite, CHA) they are still used commercially for these processes and are of great interest for future study in particular to better understand structure‐activity relationships. Hierarchically porous MFI catalysts (containing both micropores and mesopores) often show enhanced catalytic properties compared to conventional (microporous) materials in both NH3‐SCR‐DeNOx and NH3‐SCO. Thus, a critical overview of the current understanding of the salient physico‐chemical properties that influence the performance of these catalysts is examined. Furthermore, strategies for the development of ZSM‐5 based catalysts with enhanced catalytic lifetime, supported by the investigations of reaction mechanisms are reviewed and discussed.

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Section: Effects Of Sulfur Poisoning and Hydrothermal Stabilitymentioning

confidence: 94%

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Jabłońska,

Potter,

Beale

2024

ChemCatChem

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“…This kind of catalyst illustrates remarkable sulfur resistance due to its special distribution and species of metal ions and its characteristic pore structures. Moreover, the introduction of other specific metal ions or oxides can enhance the sulfur resistance of ZSM-5 [71][72][73]. Improving the sulfur resistance can prolong the service life of a catalyst by slowing down the reaction between the sulfide and the active site on the catalyst surface.…”

Section: Effect Of Multiple Metal Ions On Zsm-5 Catalystsmentioning

confidence: 99%

Research Progress of the Selective Catalytic Reduction with NH3 over ZSM-5 Zeolite Catalysts for NOx Removal

Pan,

He,

Huang

et al. 2023

Catalysts

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Nitrogen oxides (NOx) are very common air pollutants that are harmful to the environment and human bodies. Selective catalytic reduction with ammonia (NH3-SCR) is considered an effective means to remove NOx emissions due to its good environmental adaptability, high catalytic activity, and remarkable selectivity. In this paper, the preparation methods, types, advantages, and challenges of ZSM-5 catalysts are reviewed. Special attention is paid to the catalytic properties and influence factors of ZSM-5 catalysts for NH3-SCR. The SCR performances of ZSM-5 catalysts doped with single or multiple metal ions are also reviewed. In addition, the environmental adaptabilities (sulfur resistance, alkali resistance, water resistance, and hydrothermal stability) of ZSM-5 catalysts are discussed, and the development of ZSM-5 catalysts in denitrification is summarized.

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High-temperature selective reduction of NOx into N2 catalyzed by different ion-doped titania

Wang,

et al. 2024

Chemical Engineering Journal

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Mechanistic investigation of Sm doping effects on SO2 resistance of W-Zr-ZSM-5 catalyst for NH3-SCR

Cited by 8 publications

References 65 publications

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Research Progress of the Selective Catalytic Reduction with NH3 over ZSM-5 Zeolite Catalysts for NOx Removal

High-temperature selective reduction of NOx into N2 catalyzed by different ion-doped titania

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Mechanistic investigation of Sm doping effects on SO2 resistance of W-Zr-ZSM-5 catalyst for NH3-SCR

Cited by 8 publications

References 65 publications

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH3‐SCR‐DeNOx and NH3 oxidation

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH3‐SCR‐DeNOx and NH3 oxidation

Research Progress of the Selective Catalytic Reduction with NH3 over ZSM-5 Zeolite Catalysts for NOx Removal

High-temperature selective reduction of NOx into N2 catalyzed by different ion-doped titania

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Product

Resources

About

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation