Effect of the binder content on the catalytic performance of beta-based catalysts

Sánchez, Paula; Dorado, Fernando; Fúnez, Antonia; Jiménez, Vicente; Ramos, María Jesús; Valverde, J.L.

doi:10.1016/j.molcata.2007.03.076

Cited by 34 publications

(22 citation statements)

References 18 publications

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“…This means, solid-state ion-exchange of Na + , Mg 2+ in the zeolite may occur, thus reducing the Brønsted acid site density. The same conclusion was reached by the group of Dorado et al [31][32][33] while studying the influence of bentonite on the acidity and performance of BEA and ZSM-5 zeolites.…”

Section: New Binder Systemssupporting

confidence: 72%

An Overview on Zeolite Shaping Technology and Solutions to Overcome Diffusion Limitations

2018

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Synthetic zeolites are widely used as catalysts/carriers for many petrochemical reactions and in refining processes. These materials are usually synthesized in a powder form and must be shaped prior to use in industrial reactors. This review presents the state-of-the-art of the zeolite shaping technology describing the main modifications induced by the interactions between the zeolite and the binder. Additionally, a strategy is presented to overcome the diffusion limitations associated to the microporous structure of zeolites, consisting in the introduction of hierarchical porosity in the binder. Several developments in the field of hierarchical aluminas are summarized in this article, highlighting the possibility to design different ordered/disordered mesoporous and macroporous structures.

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Section: New Binder Systemssupporting

confidence: 72%

An Overview on Zeolite Shaping Technology and Solutions to Overcome Diffusion Limitations

2018

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“…4 shows the NH 3 -TPD profiles for all the catalysts here prepared. Total acidity was defined as the total acid site density, which was obtained by integration of the area under the curve [13]. Values of the corresponding total, weak and strong acid for all the catalysts are given in Table 3.…”

Section: Resultsmentioning

confidence: 99%

Influence of Alumina Binder Content on Catalytic Performance of Ni/HZSM-5 for Hydrodeoxygenation of Cyclohexanone

Kong

Liu

2014

PLoS ONE

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The influence of the amount of alumina binders on the catalytic performance of Ni/HZSM-5 for hydrodeoxygenation of cyclohexanone was investigated in a fixed-bed reactor. N2 sorption, X-ray diffraction, H2-chemisorption and temperature-programmed desorption of ammonia were used to characterize the catalysts. It can be observed that the Ni/HZSM-5 catalyst bound with 30 wt.% alumina binder exhibited the best catalytic performance. The high catalytic performance may be due to relatively good Ni metal dispersion, moderate mesoporosity, and proper acidity of the catalyst.

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“…However, binders can affect the physicochemical properties of catalyst and these changes can have a strong influence on the catalytic activity and selectivity [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Influence of Catalyst Binders on the Acidity and Catalytic Performance of HZSM-5 Zeolites for Methanol-to-Propylene (MTP) Process: Single and Binary Binder System

Lee

Ihm

2009

Top Catal

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The effect of the binders, such as silica, alumina, and aluminum phosphate solution (APS), was studied on the acidity and catalytic performance of HZSM-5 zeolite (SiO 2 /Al 2 O 3 = 80) in methanol-to-propylene (MTP) process. The strong acidity of catalyst increased slightly with alumina binder but decreased with silica and APS binders. It is noted that the catalyst with APS binder showed the highest bulk crush strength. Catalytic performance of the alumina or silica bound catalyst was comparable to that of pure HZSM-5 catalyst while that of APS bound catalyst was completely different depending on the binder content. Low content (10 wt%) of APS resulted in a dramatically enhanced propylene selectivity ([40 C mol%) due to the decrease in strong acidity. On the other hand with high content ([20 wt%) of APS, methanol was mostly dehydrated into dimethylether without further transformation into hydrocarbons even if the mechanical strength was significantly improved. The binary binder system was proposed not only to improve the mechanical strength of catalyst with small amount of APS binder but also to keep a high propylene selectivity. The catalyst bound with APS-and-alumina or APS-and-silica showed a comparable propylene selectivity to that of HZSM-5 with the 10 wt% of APS single binder while demonstrated much higher bulk crush strengths.

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Effect of the binder content on the catalytic performance of beta-based catalysts

Cited by 34 publications

References 18 publications

An Overview on Zeolite Shaping Technology and Solutions to Overcome Diffusion Limitations

An Overview on Zeolite Shaping Technology and Solutions to Overcome Diffusion Limitations

Influence of Alumina Binder Content on Catalytic Performance of Ni/HZSM-5 for Hydrodeoxygenation of Cyclohexanone

Influence of Catalyst Binders on the Acidity and Catalytic Performance of HZSM-5 Zeolites for Methanol-to-Propylene (MTP) Process: Single and Binary Binder System

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