Catalytic decomposition and reduction of N2O over micro-mesoporous materials containing Beta zeolite nanoparticles

Rutkowska, Małgorzata; Chmielarz, Lucjan; Macina, Daniel; Piwowarska, Zofia; Dudek, Barbara; Adamski, Andrzej; Witkowski, Stefan; Sojka, Zbigniew; Obalová, Lucie; Oers, Cynthia J. Van; Cool, Pegie

doi:10.1016/j.apcatb.2013.05.005

Cited by 51 publications

(31 citation statements)

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“…Zeolite Beta (Si/Al∼21) was prepared via synthesis procedure described in our previous papers [29,30]. Zeolites Y (Si/Al∼16) and ZSM-5 (Si/Al∼16.5) were provided by Eka Chemicals.…”

Section: Catalysts Preparationmentioning

confidence: 99%

Hierarchically structured ZSM-5 obtained by desilication as new catalyst for DME synthesis from methanol

Rutkowska

Macina

Mirocha-Kubień

et al. 2015

Applied Catalysis B: Environmental

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“…Zeolite Beta (Si/Al∼21) was prepared via synthesis procedure described in our previous papers [29,30]. Zeolites Y (Si/Al∼16) and ZSM-5 (Si/Al∼16.5) were provided by Eka Chemicals.…”

Section: Catalysts Preparationmentioning

confidence: 99%

Hierarchically structured ZSM-5 obtained by desilication as new catalyst for DME synthesis from methanol

Rutkowska

Macina

Mirocha-Kubień

et al. 2015

Applied Catalysis B: Environmental

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“…The most efficient way of reduction of nitrogen oxides emission is their catalytic conversion [15,16]. Zeolites from MFI, FAU and BEA families (conventional [17] and micro-mesoporous [18,19]) modified with Fe, Cu and Co were found to be active and selective catalysts in the DeNO x process.…”

Section: Introductionmentioning

confidence: 99%

Cu and Fe modified derivatives of 2D MWW-type zeolites (MCM-22, ITQ-2 and MCM-36) as new catalysts for DeNO x process

Rutkowska

Díaz

Palomares

et al. 2015

Applied Catalysis B: Environmental

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Zeolites with MWW topology (MCM-22, ITQ-2 and MCM-36) exchanged with copper and iron were studied as catalysts for selective catalytic reduction of NO with ammonia. It was shown that delamination and pillaring of layered MCM-22 zeolite resulted in the formation of ITQ-2 and MCM-36, respectively. Both these materials were characterized by MWW topology and significant contribution of mesopores.In a series of the zeolite based catalyst the most promising results in a process of selective catalytic reduction of NO with ammonia were obtained for the copper doped samples (Cu-MCM-22 and Cu-ITQ-2), however catalytic performance of the studied catalytic systems strongly depends on type, content and form of deposited transition metal species. Moreover, both these catalysts were found to be catalytically stable in the DeNOx process after hydrothermal treatment.2

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“…The proportion of Al F is obviously decreased after alkaline treatment, which means that a great amount of Al F is extracted with the removal of Si in Fe-Seed-M and Fe-Com-M samples. 35 For this situation, the damage of framework must be very severe, which is proved by the TEM images of Fe-Seed-M and Fe-Com-M. As for the Fe-Solid-M sample, the percentage of Al F is at a close level. From the above characterization result, we have known that for H-Solid-P support, amorphous silica may be preferentially dissolved.…”

Section: Resultsmentioning

confidence: 94%

“…After alkaline treatment, the percentages of Al F are 86.2%, 74.6% and 64.5% in Fe‐Seed‐M, Fe‐Solid‐M, and Fe‐Com‐M samples, respectively. The proportion of Al F is obviously decreased after alkaline treatment, which means that a great amount of Al F is extracted with the removal of Si in Fe‐Seed‐M and Fe‐Com‐M samples . For this situation, the damage of framework must be very severe, which is proved by the TEM images of Fe‐Seed‐M and Fe‐Com‐M.…”

Section: Resultsmentioning

confidence: 97%

Comparison of alkaline pre‐treatment of MFI zeolites for N₂O decomposition: different zeolite sources

Chen

Zhong

et al. 2016

Greenhouse Gases

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Three MFI parent zeolites with different morphological properties by different synthesis method were adopted. Alkaline treatment using sodium hydroxide was introduced to modify the structure of MFI zeolites. After iron exchange, the catalytic performance of both parent and modified MFI zeolites were evaluated in the N 2 O decomposition. The physicochemical properties were systematically characterized with various technologies, such as N 2 adsorption-desorption, ICP, XRD, UV-Vis, 27 Al MAS-NMR, TEM. The experiment results prove that the Fe-modified MFI catalysts with alkaline pre-treatment show much better catalytic activity than Fe-exchanged parent MFI catalysts. The curves of catalytic activities could move to low temperature range by 50-100°C. Furthermore, in the presence of NO, the performance gap between Fe-Seed-M, Fe-Solid-M, and Fe-Com-M three samples is obviously reduced. Amongst, for the Fe-Solid-M sample synthesized by the solvent-free method, 90% N 2 O conversion could be attained at 500°C, which shows potential to be applied the real condition. It is believed the hierarchical properties and the removal of amorphous substance is beneficial to the diffusion of ion exchange process. Therefore, the increase of active iron sites contributes to the improvement of catalytic performance. C

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Catalytic decomposition and reduction of N2O over micro-mesoporous materials containing Beta zeolite nanoparticles

Cited by 51 publications

References 50 publications

Hierarchically structured ZSM-5 obtained by desilication as new catalyst for DME synthesis from methanol

Hierarchically structured ZSM-5 obtained by desilication as new catalyst for DME synthesis from methanol

Cu and Fe modified derivatives of 2D MWW-type zeolites (MCM-22, ITQ-2 and MCM-36) as new catalysts for DeNO x process

Comparison of alkaline pre‐treatment of MFI zeolites for N₂O decomposition: different zeolite sources

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Catalytic decomposition and reduction of N2O over micro-mesoporous materials containing Beta zeolite nanoparticles

Cited by 51 publications

References 50 publications

Hierarchically structured ZSM-5 obtained by desilication as new catalyst for DME synthesis from methanol

Hierarchically structured ZSM-5 obtained by desilication as new catalyst for DME synthesis from methanol

Cu and Fe modified derivatives of 2D MWW-type zeolites (MCM-22, ITQ-2 and MCM-36) as new catalysts for DeNO x process

Comparison of alkaline pre‐treatment of MFI zeolites for N2O decomposition: different zeolite sources

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Comparison of alkaline pre‐treatment of MFI zeolites for N₂O decomposition: different zeolite sources