Cu‐SSZ‐13 Catalysts Designed Through Interzeolite Conversion Process From Different Structure Types of Zeolites for NH3‐SCR‐DeNOx: Structure‐Property Activity Relationships and Intermediates Determination
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DOI: 10.1002/cctc.202501017
Abstract: The intermediates and their respective role in reduction and oxidation cycles in the selective catalytic reduction of NOxx with ammonia reaction mechanism (NH3‐SCR‐DeNOx) are widely and controversially discussed. To finally clear up the discussion, a… read more here.
Keywords: scr denox; ssz; structure; nh3 scr ... See more keywords
Effects of regeneration conditions on sulfated CuSSZ-13 catalyst for NH3-SCR
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DOI: 10.1007/s11814-019-0307-x
Abstract: To understand the role of regeneration conditions on sulfur-poisoned Cu/SSZ-13 catalysts for NH3-SCR, the physicochemical characterizations and NO2 conversions were investigated. The sulfur-poisoned Cu/SSZ-13 catalysts were treated at different conditions as a function of temperature… read more here.
Keywords: regeneration conditions; nh3 scr; effects regeneration; regeneration ... See more keywords
Precise control of post-treatment significantly increases hydrothermal stability of in-situ synthesized cu-zeolites for NH3-SCR reaction
Sign Up to like & getrecommendations! Published in 2020 at "Applied Catalysis B: Environmental"
DOI: 10.1016/j.apcatb.2020.118655
Abstract: Abstract The origin of the beneficial effects of post-treatment processing with HNO3 and NH4NO3 solutions on the catalytic performance of copper-amine templated zeolites used in the NH3-SCR reaction was investigated. By careful design and optimization… read more here.
Keywords: nh3 scr; treatment; ssz catalysts; scr reaction ... See more keywords
Si/Al Ratio Determines the SCR Performance of Cu-SSZ-13 Catalysts in the Presence of NO2.
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DOI: 10.1021/acs.est.2c03813
Abstract: A comparative study was performed to investigate the NH3-selective catalytic reduction (SCR) reaction activity of Cu-SSZ-13 zeolites having Si/Al ratios (SARs) of 5, 18, and 30. Remarkably, the Cu-SSZ-13 zeolite catalysts exhibited completely opposite behaviors… read more here.
Keywords: ssz; ratio determines; ssz catalysts; performance ssz ... See more keywords
Hydrothermal Aging Alleviates the Phosphorus Poisoning of Cu-SSZ-39 Catalysts for NH3-SCR Reaction.
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DOI: 10.1021/acs.est.2c08876
Abstract: As a new type of catalyst with the potential for commercial application in NOx removal from diesel engine exhausts, Cu-SSZ-39 catalysts must have excellent resistance to complex and harsh conditions. In this paper, the effects… read more here.
Keywords: phosphorus poisoning; hydrothermal aging; low temperature; aging treatment ... See more keywords
Effect of Ion-Exchange Sequences on Catalytic Performance of Cerium-Modified Cu-SSZ-13 Catalysts for NH3-SCR
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DOI: 10.3390/catal11080997
Abstract: Cerium-modified Cu-SSZ-13 catalysts were prepared by an aqueous ion-exchange method, and Ce and Cu were incorporated through different ion-exchange sequences. The results of NH3-SCR activity evaluations displayed that Cu1(CeCu)2 catalyst presented excellent catalytic activity, and… read more here.
Keywords: modified ssz; ion exchange; cerium modified; ssz catalysts ... See more keywords