Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts: Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts (2024)

Meng, L., Vanbutsele, G., Pestman, R., Godin, A., Romero Hidalgo, D. E., van Hoof, A. J. F., Gao, L., Kimpel, T., Chai, J., Martens, J. A. (2020). Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts: Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts. Journal of Catalysis, 389, 544-555. https://doi.org/10.1016/j.jcat.2020.06.031

Meng, Lingqian ; Vanbutsele, G. ; Pestman, Robert et al. / Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts : Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts. In: Journal of Catalysis. 2020 ; Vol. 389. pp. 544-555.

@article{5976e60b92ef428a98a660ca2df72d83,

title = "Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts: Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts",

abstract = "The influence of zeolite domain size, acidity, and metal type on n-decane and n-nonadecane hydroconversion was investigated for bifunctional Pd(Pt)/ZSM-5 zeolite (bulk, desilicated, thin and thick nanosheets). Decreasing the size of zeolitic domains to a few nanometers results in lower overall activity, higher skeletal isomerization yield, and an imbalance between metal and acid functions. These changes are attributed to a lower pore occupancy of olefinic intermediates due to the substantially larger external surface of nanosheets and higher desorption rates. Well-balanced bifunctional behavior and higher activity of nanosheet ZSM-5 can be achieved by strengthening the metal function or lowering the acidity. The influence on the isomerized and cracked product fractions is also discussed. Hydroconversion of n-nonadecane gave low yields of skeletal isomers over all Pd-loaded ZSM-5 catalysts and led to significant over-cracking due to the long intracrystalline residence times of the long hydrocarbon reactant.",

keywords = "Acidity, Mechanism, n-paraffins hydroconversion, Nanosheet, ZSM-5",

author = "Lingqian Meng and G. Vanbutsele and Robert Pestman and A. Godin and {Romero Hidalgo}, {Douglas E.} and {van Hoof}, {Arno J.F.} and Lu Gao and Tobias Kimpel and Jiachun Chai and Martens, {Johan A.} and Hensen, {Emiel J.M.}",

year = "2020",

month = sep,

doi = "10.1016/j.jcat.2020.06.031",

language = "English",

volume = "389",

pages = "544--555",

journal = "Journal of Catalysis",

issn = "0021-9517",

publisher = "Academic Press Inc.",

}

Meng, L, Vanbutsele, G, Pestman, R, Godin, A, Romero Hidalgo, DE, van Hoof, AJF, Gao, L, Kimpel, T, Chai, J, Martens, JA 2020, 'Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts: Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts', Journal of Catalysis, vol. 389, pp. 544-555. https://doi.org/10.1016/j.jcat.2020.06.031

Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts: Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts. / Meng, Lingqian; Vanbutsele, G.; Pestman, Robert et al.
In: Journal of Catalysis, Vol. 389, 09.2020, p. 544-555.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts

T2 - Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts

AU - Meng, Lingqian

AU - Vanbutsele, G.

AU - Pestman, Robert

AU - Godin, A.

AU - Romero Hidalgo, Douglas E.

AU - van Hoof, Arno J.F.

AU - Gao, Lu

AU - Kimpel, Tobias

AU - Chai, Jiachun

AU - Martens, Johan A.

AU - Hensen, Emiel J.M.

PY - 2020/9

Y1 - 2020/9

N2 - The influence of zeolite domain size, acidity, and metal type on n-decane and n-nonadecane hydroconversion was investigated for bifunctional Pd(Pt)/ZSM-5 zeolite (bulk, desilicated, thin and thick nanosheets). Decreasing the size of zeolitic domains to a few nanometers results in lower overall activity, higher skeletal isomerization yield, and an imbalance between metal and acid functions. These changes are attributed to a lower pore occupancy of olefinic intermediates due to the substantially larger external surface of nanosheets and higher desorption rates. Well-balanced bifunctional behavior and higher activity of nanosheet ZSM-5 can be achieved by strengthening the metal function or lowering the acidity. The influence on the isomerized and cracked product fractions is also discussed. Hydroconversion of n-nonadecane gave low yields of skeletal isomers over all Pd-loaded ZSM-5 catalysts and led to significant over-cracking due to the long intracrystalline residence times of the long hydrocarbon reactant.

AB - The influence of zeolite domain size, acidity, and metal type on n-decane and n-nonadecane hydroconversion was investigated for bifunctional Pd(Pt)/ZSM-5 zeolite (bulk, desilicated, thin and thick nanosheets). Decreasing the size of zeolitic domains to a few nanometers results in lower overall activity, higher skeletal isomerization yield, and an imbalance between metal and acid functions. These changes are attributed to a lower pore occupancy of olefinic intermediates due to the substantially larger external surface of nanosheets and higher desorption rates. Well-balanced bifunctional behavior and higher activity of nanosheet ZSM-5 can be achieved by strengthening the metal function or lowering the acidity. The influence on the isomerized and cracked product fractions is also discussed. Hydroconversion of n-nonadecane gave low yields of skeletal isomers over all Pd-loaded ZSM-5 catalysts and led to significant over-cracking due to the long intracrystalline residence times of the long hydrocarbon reactant.

KW - Acidity

KW - Mechanism

KW - n-paraffins hydroconversion

KW - Nanosheet

KW - ZSM-5

UR - http://www.scopus.com/inward/record.url?scp=85088116902&partnerID=8YFLogxK

U2 - 10.1016/j.jcat.2020.06.031

DO - 10.1016/j.jcat.2020.06.031

M3 - Article

AN - SCOPUS:85088116902

SN - 0021-9517

VL - 389

SP - 544

EP - 555

JO - Journal of Catalysis

JF - Journal of Catalysis

ER -

Meng L, Vanbutsele G, Pestman R, Godin A, Romero Hidalgo DE, van Hoof AJF et al. Mechanistic Aspects of n-Paraffins Hydrocracking: Influence of Zeolite Morphology and Acidity of Pd(Pt)/ZSM-5 Catalysts: Influence of zeolite morphology and acidity of Pd(Pt)/ZSM-5 catalysts. Journal of Catalysis. 2020 Sept;389:544-555. doi: 10.1016/j.jcat.2020.06.031