Co-based MOR/ZSM-5 composite zeolites over a solvent-free synthesis strategy for improving gasoline selectivity

Cheng, Shilin; Mazonde, Brighton; Javed, Mudassar; Dai, Peiyao; Cao, Yingnan; Tu, Sisi; Wu, Jiayi; Lu, Chao; Xing, Chuang; Shan, Shengdao

doi:10.1016/j.fuel.2018.03.042

Cited by 23 publications

(9 citation statements)

References 33 publications

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“…Xiao et al [51,52] reported a solid-state synthesis method for zeolite, in which the initial solid raw material was ground and mixed without adding any reaction solvent. At present, LTA, BEA, MFI, CHA, and ITQ zeolites as well as MOR/ZSM-5 zeolite composites have been achieved [54][55][56][57][58][59][60][61].…”

Section: Development Of Facile Synthesis Methodsmentioning

confidence: 99%

Advances in the Green Synthesis of Microporous and Hierarchical Zeolites: A Short Review

Pan

Yip

2019

Catalysts

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Hierarchical zeolites have been extensively studied due to their enhancement of intra-crystalline diffusion, which leads to the improved catalytic activity and resistance to coking-deactivation. Traditional synthesis strategies of hierarchical zeolites via post-treatment or directing synthesis with the aid of mesoporous template are often characterized by high energy consumption and substantial use of expensive and environmentally unfriendly organic templates. In the recent decade, new green synthesis protocols have been developed for the effective synthesis of conventional and hierarchical zeolites. In this review, the latest advancements on the green synthesis of hierarchical zeolites are summarized and discussed in detail.

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Section: Development Of Facile Synthesis Methodsmentioning

confidence: 99%

Advances in the Green Synthesis of Microporous and Hierarchical Zeolites: A Short Review

Pan

Yip

2019

Catalysts

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“…The nanosponge morphology of the zeolite involved large surface area and even mesopores leading to high accessibility of active acid sites and relatively easy diffusion of reactants and products via the mesopores. Figure 8A Other authors synthesized a Co-based composite zeolite, MOR/ZSM-5, using a solvent-free synthesis recipe for several crystallization periods [68]. Different morphologies were observed for different crystallization times, with the optimal time being 72 hours of crystallization at which perfect crystal structure was obtained.…”

Section: Synthesis Of Zeolitesmentioning

confidence: 99%

Synthesis and performance evaluation of hydrocracking catalysts: A review

Saab

Polychronopoulou

Zheng

et al. 2020

Journal of Industrial and Engineering Chemistry

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This review provides a comprehensive summary of current hydrocracking applications, and presents recent advances in the synthesis and structure/composition control of various nanomaterials used in hydrocracking catalysts. Although a wide range of feeds are considered in this review, particular focus is placed on hydrocracking of aromatic and paraffinic compounds.The significance, concepts and principles of the hydrocracking process are first discussed focusing on its wide range of industrial applications. Then, recent advances in the synthesis of hydrocracking catalysts are presented, including different types of zeolites and metal promoted catalysts. Finally, we compare the performances of a wide range of hydrocracking catalysts, and discuss how their intrinsic properties (e.g. surface area, porosity, acidity, morphology and structure) can be controlled to achieve optimal catalytic performance in hydrocracking of aromatic compounds, heavy petrochemicals, paraffinic hydrocarbons and vegetable oils.

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“…In terms of contact between active sites and of preparation methods, catalysts are grouped into supported [10,[18][19][20][21][22][23][24][25], encapsulated [10,26,27], and mixed catalysts. Catalysts of the lastmentioned type differ in the method for charging a pellet mixture [18,19,26,28,29] or comprise a pelletized mixture of components and binders [30,31]. As noted in most studies, the production effi ciency of fuel components correlates well with the proximity of FT synthesis sites to acid sites and can be adjusted by promotion.…”

Section: Doi: 101134/s096554412105008xmentioning

confidence: 99%

Combined Synthesis and Hydroprocessing of Hydrocarbons over Co/SiO2 + ZSM-5 + Al2O3 Catalysts Promoted by Nickel

et al. 2021

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The study investigates the effects of nickel introduction methods on the properties of a hybrid cobalt catalyst in a combination of Fischer–Tropsch synthesis and the hydroprocessing of the synthesized products. At 240°C, 2 MPa, and syngas WHSV 1000 h–1, the catalytic performances were compared, the products were analyzed for the hydrocarbon and fractional compositions, and the characteristics of the synthesized fuels were determined. Among the catalysts differing in nickel introduction method, the sample with a nickel-containing zeolite component prepared by ion exchange was found to have the highest hydrogenation activity, while the sample with a metal component generated by joint cobalt/nickel introduction [Co/SiO2 + Ni(i)/HZSM-5 + Al2O3] exhibited the highest isomerization activity.

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Co-based MOR/ZSM-5 composite zeolites over a solvent-free synthesis strategy for improving gasoline selectivity

Cited by 23 publications

References 33 publications

Advances in the Green Synthesis of Microporous and Hierarchical Zeolites: A Short Review

Advances in the Green Synthesis of Microporous and Hierarchical Zeolites: A Short Review

Synthesis and performance evaluation of hydrocracking catalysts: A review

Combined Synthesis and Hydroprocessing of Hydrocarbons over Co/SiO2 + ZSM-5 + Al2O3 Catalysts Promoted by Nickel

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