Green synthesis of shaped nano-ZSM-5 toward more efficient methanol-to-hydrocarbon conversion

Bu, Lingzhen; Wang, Yaquan; Liu, Wenrong; Chu, Kailiang; Guo, Niandong; Huang, Yitong; Qu, Liping; Su, Xuemei; Zhang, Xian; Li, Yaoning

doi:10.1016/j.apcata.2023.119393

Cited by 6 publications

(3 citation statements)

References 70 publications

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“…This method includes the inducing and orientation of crystals growth by adding into the gel a minor amount of the same targeted zeolite structure as a seed. This method has been shown to be successful in syntheses of zeolite frameworks such as MFI [200][201][202][203], MTW [64,204], MEL [205], FAU [206], MOR [207], CHA [208], and MRE [209].…”

Section: Cost-effective and Eco-friendly Synthesis Approachesmentioning

confidence: 99%

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Aljajan,

Stytsenko,

Rubtsova

et al. 2023

Catalysts

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Upgrading the properties of diesel fractions is considered one of the crucial processes in the petrochemical industry; and for this purpose in laboratory-scale researching it is studied on the base of the hydroisomerization of n-hexadecane as a main model reaction. Recently, zeolite-based bifunctional catalysts have proven their efficiency due to their remarkable acidity, shape-selectivity and relative resistance to deactivation. In this review, different topological-type zeolite-based catalysts, the mechanism of their catalytic effect in n-C16 isomerization, and the principles of shape-selectivity are reviewed. A comparison of their structural-operational characteristics is made. The impact of some feedstock impurities on the catalyst’s performance and deactivation due to carbonaceous deposits as well as various modern eco-friendly cost-effective synthesis techniques are also discussed.

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Section: Cost-effective and Eco-friendly Synthesis Approachesmentioning

confidence: 99%

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Aljajan,

Stytsenko,

Rubtsova

et al. 2023

Catalysts

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“…13,20,21 Recent advancements in seed-assisted approaches have revolutionized zeolite synthesis, reducing or eliminating the need for OSDAs and thus opening new frontiers in zeolite production. 22,23 A small-pore zeolite P has a gismondine (GIS)-type framework topology with two intersecting channels of 0.31 × 0.44 nm and 0.26 × 0.49 nm in [1 0 0] and [0 1 0] directions, respectively. 24 McCusker et al illustrated that the GIS-type framework could be characterized as a stacking arrangement of two-dimensional arrays of double crankshaft chains (dccs).…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, alternative techniques have emerged to address these challenges, such as recycling unused chemicals, ionothermal synthesis, microwave and sonication-based approaches, and seed-assisted methods. , Traditionally, seed-assisted synthesis has played a crucial role in reducing zeolite synthesis time. Recently, several studies have reported that an ultrafast synthesis route using seeds has enabled the rapid preparation of a variety of industrially vital zeolites, including ZSM-5 and SSZ-13, often within hours or even minutes. − Moreover, it is well established that using seeds in zeolite synthesis improves the crystallization kinetics, suppresses impurity formation, and, as mentioned, enables precise control of particle size and morphology. ,, Recent advancements in seed-assisted approaches have revolutionized zeolite synthesis, reducing or eliminating the need for OSDAs and thus opening new frontiers in zeolite production. , …”

Section: Introductionmentioning

confidence: 99%

Nanosized Zeolite P for Enhanced CO₂ Adsorption Kinetics

Al Atrach,

Aitblal,

Amedlous

et al. 2024

ACS Appl. Mater. Interfaces

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Downsizing zeolite crystals is a rational solution to address the challenge of slow adsorption rates for industrial applications. In this work, we report an environmentally friendly seed-assisted method for synthesizing nanoscale zeolite P, which has been shown to be promising for binary separations. The potassium-exchanged form of nanoagglomerates demonstrates dramatically enhanced CO 2 adsorption capacity, improved diffusion rate, and separation performance. Singlecomponent CO 2 adsorption at equilibrium demonstrated higher CO 2 uptake and faster adsorption kinetics (ca. 1400 s vs >130000 s) for nanosized zeolite (KP1) compared to its micron-sized (KP2) counterpart. The diffusion kinetics analysis revealed the relation between the crystal size and the transport mechanism. The micron-sized KP2 sample was primarily governed by a surface barrier resistance mechanism, while in KP1, the diffusion process involved both intracrystalline and surface barrier resistance, facilitating the surface diffusion process and enhancing the overall diffusion rate. Breakthrough curve analysis confirmed these findings as fast and efficient CO 2 /N 2 and CO 2 /CH 4 separations recorded for the nanosized sample. The results showed remarkably enhanced breakthrough time for KP2 vs KP1 in CO 2 /N 2 (1.0 vs 10.9 min) and CO 2 /CH 4 (1.1 vs 9.9 min) mixtures, along with much higher adsorption capacity for CO 2 /N 2 (0.18 vs 1.33 mmol/g) and CO 2 /CH 4 (0.18 vs 1.21 mmol/ g) mixtures. The set of experimental data demonstrates the importance of zeolite crystal engineering for improving the gas separation performance of processes involving CO 2 , N 2 , and CH 4 .

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Facile synthesis of rodlike ZSM-5 zeolite microspheres and catalytic performance in methanol to propylene reaction

Chen,

Li,

et al. 2024

J Porous Mater

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Green synthesis of shaped nano-ZSM-5 toward more efficient methanol-to-hydrocarbon conversion

Cited by 6 publications

References 70 publications

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Nanosized Zeolite P for Enhanced CO₂ Adsorption Kinetics

Facile synthesis of rodlike ZSM-5 zeolite microspheres and catalytic performance in methanol to propylene reaction

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Green synthesis of shaped nano-ZSM-5 toward more efficient methanol-to-hydrocarbon conversion

Cited by 6 publications

References 70 publications

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Hydroisomerization Catalysts for High-Quality Diesel Fuel Production

Nanosized Zeolite P for Enhanced CO2 Adsorption Kinetics

Facile synthesis of rodlike ZSM-5 zeolite microspheres and catalytic performance in methanol to propylene reaction

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Product

Resources

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Nanosized Zeolite P for Enhanced CO₂ Adsorption Kinetics