Ni catalyst on ZSM-22 nanofibers bundles with good catalytic performance in the hydroisomerization of n-dodecane

Zhang, Lei; Gao, Yifei; Bai, Xuerui; He, Liwen; Fu, Wenqian; Tang, Tiandi

doi:10.1016/j.fuel.2023.129885

Cited by 15 publications

(3 citation statements)

References 57 publications

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“…The maximum yield of isomeric hexadecane reached 80.2% due to the synergistic effect of the larger ratio of the metal center to acid center and the improved hydrogen activation ability caused by more exposed Pd(111) crystal planes. Zhang et al 7 successfully synthesized nanofiber bundle ZSM-22 without any additives and used it to prepare nickel catalyst for hydroisomerization of n-dodecane. ZSM-22 coated with nanofibers had a good crystal structure and suitable acidity, which led to good synergistic catalysis between metal and acidic functions of Ni/ZSM-22 catalyst.…”

Section: Al 2 O 3 and Its Compositementioning

confidence: 99%

“…5 Among them, the acidic carrier is responsible for providing acidic sites for isomerization of an olefin intermediate skeleton, while the metal component is responsible for providing metal sites with hydrogenation/dehydrogenation function. 6,7 Through the unremitting efforts of researchers, various materials have been developed to be used as supports of hydroisomerization catalysts, such as amorphous silica−alumina oxides, alumina, and its composite supports, acidic metal oxides, acidified MOF, silica−alumina zeolites, and SAPO series molecular sieves. 8−12 Among them, the most commonly used supports are silica−alumina zeolites and SAPO series molecular sieves.…”

Section: Introductionmentioning

confidence: 99%

“…The catalyst for hydroisomerization of n -alkanes is a bifunctional catalyst, which is mainly composed of acidic support and metal components . Among them, the acidic carrier is responsible for providing acidic sites for isomerization of an olefin intermediate skeleton, while the metal component is responsible for providing metal sites with hydrogenation/dehydrogenation function. , …”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Modification, and Performance Regulation of SAPO-11 Molecular Sieve and Development of n-Alkane Hydroisomerization Catalyst: A Mini-Review

Dai,

Cheng,

Liu

et al. 2024

Energy Fuels

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Hydroisomerization catalyst is the key of the hydroisomerization process, which is a bifunctional catalyst composed of acidic support and metal components. In this work, the research progress of hydroisomerization catalysts was reviewed first from two aspects: support and metal components. The supports and metal components used to prepare hydroisomerization catalysts in recent years were introduced, and their advantages/disadvantages were summarized. SAPO-11 molecular sieve is the most commonly used and suitable support for hydroisomerization catalyst. The synthesis methods and influencing factors of SAPO-11 molecular sieves were introduced in detail, and the research progress of modification of SAPO-11 molecular sieves was summarized. Meanwhile, the effects of pore structure, acidity, and crystal size of SAPO-11 molecular sieve on SAPO-11-based hydroisomerization catalyst and their regulation methods were emphatically introduced. Finally, the development direction of n-alkane (carbon number ≤ 16) hydroisomerization catalyst and the synthesis prospect of SAPO-11 molecular sieve were summarized and prospected. This review is helpful to understand the development status of supports and metal components of hydroisomerization catalysts as well as the research status and development prospect of the synthesis of SAPO-11 molecular sieve. The future development direction of the hydroisomerization catalyst and SAPO-11 molecular sieve was summarized and put forward. It is expected to provide a reference for researchers in this field.

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Section: Al 2 O 3 and Its Compositementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis, Modification, and Performance Regulation of SAPO-11 Molecular Sieve and Development of n-Alkane Hydroisomerization Catalyst: A Mini-Review

Dai,

Cheng,

Liu

et al. 2024

Energy Fuels

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Ni/ZSM‐23 Catalysts: Effect of Impregnating Solvent on the Hydroisomerization of n‐Hexadecane

Wang,

Yan,

Shao

et al. 2024

ChemistrySelect

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Bifunctional catalysts are widely used in the hydroisomerization of long‐chain n‐alkanes, which are of great significance in the production of high value‐added chemicals. Herein, the Ni/ZSM‐23‐W and Ni/ZSM‐23‐EG catalysts were prepared using water and ethylene glycol, respectively. The catalysts were characterized using XRD, SEM, TEM, NH3‐TPD, Py–IR, H2‐TPR, H2‐TPD, ICP–OES, and XPS, and their catalytic performance was evaluated by conducting the hydroisomerization of n‐hexadecane as a model reaction. It was revealed that the polarity of the impregnating solvent has a significant impact on the dispersion of Ni nanoparticles. When employing ethylene glycol as a solvent, a strong interaction occurred between NiOx and ZSM‐23 in the Ni/ZSM‐23‐EG catalyst, which facilitated the formation of small‐sized and well‐dispersed Ni nanoparticles. Consequently, the Ni/ZSM‐23‐EG catalyst demonstrated a strong hydrogenation capacity, yielding an impressive 72.9% of iso‐hexadecanes yield.

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The promoting role of framework Ti(IV) in enhancing the hydrodeoxygenation performance of palmitic acid over a mesoporous TS-1 supported Ni catalyst

Zhang,

Fu,

Huang

et al. 2024

Applied Catalysis A: General

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Ni catalyst on ZSM-22 nanofibers bundles with good catalytic performance in the hydroisomerization of n-dodecane

Cited by 15 publications

References 57 publications

Synthesis, Modification, and Performance Regulation of SAPO-11 Molecular Sieve and Development of n-Alkane Hydroisomerization Catalyst: A Mini-Review

Synthesis, Modification, and Performance Regulation of SAPO-11 Molecular Sieve and Development of n-Alkane Hydroisomerization Catalyst: A Mini-Review

Ni/ZSM‐23 Catalysts: Effect of Impregnating Solvent on the Hydroisomerization of n‐Hexadecane

The promoting role of framework Ti(IV) in enhancing the hydrodeoxygenation performance of palmitic acid over a mesoporous TS-1 supported Ni catalyst

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