Improved methanol-to-olefin reaction selectivity and catalyst life by CeO 2 coating of ferrierite zeolite

Park, Sung Jun; Jang, Hoi Gu; Lee, Kwan Young; Cho, Sung June

doi:10.1016/j.micromeso.2017.08.003

Cited by 20 publications

(9 citation statements)

References 29 publications

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“…Amazingly, the catalytic performance of MTO over ferrierite zeolite was improved by CeO2 coating. A product distribution of almost 90% higher olefins and free aromatics was obtained [31]. In the near future, fundamental investigations on hierarchical, nano-, and meso-structured materials would further be established, and in-depth understanding of MTO mechanisms would be revealed, whereas the projection for further MTO catalyst innovation is expected to be on the rise.…”

Section: Conclusion and Prospectsmentioning

confidence: 98%

Effect of ZSM-5 Acidity in Enhancement of Methanol-to-Olefins Process

Hambali

Jalil

Siang

et al. 2019

JEST

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The skyrocketing demand for olefins especially propylene, have necessitated continuous efforts in finding alternate route for olefins production. Hence, methanol to olefins (MTO) was recognized as a feasible process since methanol could simply be mass produced from any gasifiable carbon-based feedstock, such as natural gas, coal, and biomass. Essentially, obtaining a more stable catalyst would improve economy of the MTO process. Acidity of catalyst has major influence in MTO, thus it is an indispensable parameter for conversion of methanol into value-added products. The present paper discusses the reactions involved in MTO process and the effect of acidity in enhancement of light olefin selectivity and catalytic stability. The paper also captured perspectives of crucial research and future direction for catalysts development and technologies that can potentiallly boost olefin production and make it competitive with the conventional olefin production processes.

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Section: Conclusion and Prospectsmentioning

confidence: 98%

Effect of ZSM-5 Acidity in Enhancement of Methanol-to-Olefins Process

Hambali

Jalil

Siang

et al. 2019

JEST

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“…The n-butene yields constituted 70-80% of the hydrocarbons with four carbon atoms for 720NHA (FER) (Figure 3a), exceeding those for 840NHA (MFI) and 940HOA (BEA). Park et al reported the selectivity order of pentene + hexene > butene > propylene for the methanol-to-olefin (MTO) reaction using commercial ferrierite zeolites [30]. ZSM-22 (TON) with medium-pore (10-ring) is excellent for the synthesis of hydrocarbons with four or more carbon atoms, but its highest yields are for hydrocarbons with five or six carbon atoms [31,32].…”

Section: Effects Of Calcination Temperaturementioning

confidence: 99%

n-Butene Synthesis in the Dimethyl Ether-to-Olefin Reaction over Zeolites

2021

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Zeolite catalysts that could allow the efficient synthesis of n-butene, such as 1-butene, trans-2-butene, and cis-2-butene, in the dimethyl ether (DME)-to-olefin (DTO) reaction were investigated using a fixed-bed flow reactor. The zeolites were characterized by N2 adsorption and desorption, X-ray diffraction (XRD), thermogravimetry (TG), and NH3 temperature-programmed desorption (NH3-TPD). A screening of ten available zeolites indicated that the ferrierite zeolite with NH4+ as the cation showed the highest n-butene yield. The effect of the temperature of calcination as a pretreatment method on the catalytic performance was studied using three zeolites with suitable topologies. The calcination temperature significantly affected DME conversion and n-butene yield. The ferrierite zeolite showed the highest n-butene yield at a calcination temperature of 773 K. Multiple regression analysis was performed to determine the correlation between the six values obtained using N2 adsorption/desorption and NH3-TPD analyses, and the n-butene yield. The contribution rate of the strong acid site alone as an explanatory variable was 69.9%; however, the addition of micropore volume was statistically appropriate, leading to an increase in the contribution rate to 76.1%. Insights into the mechanism of n-butene synthesis in the DTO reaction were obtained using these parameters.

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“…Zeolites are crystalline microporous materials which have been widely applied on an industrial scale in heterogeneous catalysis, adsorption, separation and ion exchange in the past decades [ 1 , 2 , 3 , 4 , 5 ]. Among them, Ferrierite (FER) zeolite is one of the industrialized types, which has excellent catalytic properties in skeletal isomerization of n-alkene, methanol to olefin, N 2 O decomposition, CO 2 hydrogenation, dehydration of methanol or ethanol, dimethyl ether carbonylation, and so on [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Advances in the Synthesis of Ferrierite Zeolite

Zhu

et al. 2020

Molecules

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As one of the most important porous materials, zeolites with intricate micropores have been widely employed as catalysts for decades due to their large pore volume, high surface area, and good thermal and hydrothermal stabilities. Among them, ferrierite (FER) zeolite with a two-dimensional micropore structure is an excellent heterogeneous catalyst for isomerization, carbonylation, cracking, and so on. In the past years, considering the important industrial application of FER zeolite, great efforts have been made to improve the synthesis of FER zeolite and thus decrease the synthesis cost and enhance catalytic performance. In this review, we briefly summarize the advances in the synthesis of FER zeolite including the development of synthesis routes, the use of organic templates, organotemplate-free synthesis, the strategies of morphology control, and the creation of intra-crystalline mesopores. Furthermore, the synthesis of hetero-atomic FER zeolites such as Fe-FER and Ti-FER has been discussed.

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Improved methanol-to-olefin reaction selectivity and catalyst life by CeO 2 coating of ferrierite zeolite

Cited by 20 publications

References 29 publications

Effect of ZSM-5 Acidity in Enhancement of Methanol-to-Olefins Process

Effect of ZSM-5 Acidity in Enhancement of Methanol-to-Olefins Process

n-Butene Synthesis in the Dimethyl Ether-to-Olefin Reaction over Zeolites

Advances in the Synthesis of Ferrierite Zeolite

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