Hydroisomerization and cracking of n-octane and C8 isomers on Ni-containing zeolites

Alois Lugstein; Andreas Jentys; Hannelore Vinek

doi:10.1016/s0926-860x(98)00231-2

Hydroisomerization and cracking of n-octane and C₈ isomers on Ni-containing zeolites

Alois Lugstein, Andreas Jentys, Hannelore Vinek

Technical University of Vienna

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

59 Scopus citations

Abstract

The hydrocracking and hydroisomerization of n-octane, 2,5-dimethylhexane and 2,2,4-trimethylpentane on Ni-containing ZSM-5, mordenite and beta catalysts was investigated at 20 bar hydrogen pressure and a temperature of 533 K. The activity decreased in the sequence ZSM-5≫BETA≈MOR for the n-octane conversion and increased in this sequence for the conversion of 2,5-dimethylhexane and 2,2,4-trimethylpentane. The selectivity for isomerization of n-octane and 2,5-dimethylhexane was the highest on NiHBETA and the lowest on NiHZSM-5. The trends in the activity and selectivity were explained by the accessibility of the acid sites, estimated by adsorption of probe molecules followed by IR spectroscopy, and by a simulation of the space available in the pores of these zeolites.

Original language	English
Pages (from-to)	119
Number of pages	1
Journal	Applied Catalysis A: General
Volume	176
Issue number	1
DOIs	https://doi.org/10.1016/s0926-860x(98)00231-2
State	Published - 1999
Externally published	Yes

Keywords

Beta catalysts
Hydrocracking
Hydroisomerization
Mordenite
ZSM-5
Zeolites
n-Octane

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10.1016/s0926-860x(98)00231-2

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title = "Hydroisomerization and cracking of n-octane and C8 isomers on Ni-containing zeolites",

abstract = "The hydrocracking and hydroisomerization of n-octane, 2,5-dimethylhexane and 2,2,4-trimethylpentane on Ni-containing ZSM-5, mordenite and beta catalysts was investigated at 20 bar hydrogen pressure and a temperature of 533 K. The activity decreased in the sequence ZSM-5≫BETA≈MOR for the n-octane conversion and increased in this sequence for the conversion of 2,5-dimethylhexane and 2,2,4-trimethylpentane. The selectivity for isomerization of n-octane and 2,5-dimethylhexane was the highest on NiHBETA and the lowest on NiHZSM-5. The trends in the activity and selectivity were explained by the accessibility of the acid sites, estimated by adsorption of probe molecules followed by IR spectroscopy, and by a simulation of the space available in the pores of these zeolites.",

keywords = "Beta catalysts, Hydrocracking, Hydroisomerization, Mordenite, ZSM-5, Zeolites, n-Octane",

author = "Alois Lugstein and Andreas Jentys and Hannelore Vinek",

note = "Funding Information: The work was supported by “{\"O}sterreichische Nationalbank” under project JF 5410 and by “Fonds zur F{\"o}rderung der Wissenschaftlichen Forschung” under project FWF P11 749. We thank Klaus Kleestorfer for the simulation of the framework of zeolites and Degussa for providing the zeolite beta.",

year = "1999",

doi = "10.1016/s0926-860x(98)00231-2",

language = "English",

volume = "176",

pages = "119",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier B.V.",

number = "1",

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TY - JOUR

T1 - Hydroisomerization and cracking of n-octane and C8 isomers on Ni-containing zeolites

AU - Lugstein, Alois

AU - Jentys, Andreas

AU - Vinek, Hannelore

N1 - Funding Information: The work was supported by “Österreichische Nationalbank” under project JF 5410 and by “Fonds zur Förderung der Wissenschaftlichen Forschung” under project FWF P11 749. We thank Klaus Kleestorfer for the simulation of the framework of zeolites and Degussa for providing the zeolite beta.

PY - 1999

Y1 - 1999

N2 - The hydrocracking and hydroisomerization of n-octane, 2,5-dimethylhexane and 2,2,4-trimethylpentane on Ni-containing ZSM-5, mordenite and beta catalysts was investigated at 20 bar hydrogen pressure and a temperature of 533 K. The activity decreased in the sequence ZSM-5≫BETA≈MOR for the n-octane conversion and increased in this sequence for the conversion of 2,5-dimethylhexane and 2,2,4-trimethylpentane. The selectivity for isomerization of n-octane and 2,5-dimethylhexane was the highest on NiHBETA and the lowest on NiHZSM-5. The trends in the activity and selectivity were explained by the accessibility of the acid sites, estimated by adsorption of probe molecules followed by IR spectroscopy, and by a simulation of the space available in the pores of these zeolites.

AB - The hydrocracking and hydroisomerization of n-octane, 2,5-dimethylhexane and 2,2,4-trimethylpentane on Ni-containing ZSM-5, mordenite and beta catalysts was investigated at 20 bar hydrogen pressure and a temperature of 533 K. The activity decreased in the sequence ZSM-5≫BETA≈MOR for the n-octane conversion and increased in this sequence for the conversion of 2,5-dimethylhexane and 2,2,4-trimethylpentane. The selectivity for isomerization of n-octane and 2,5-dimethylhexane was the highest on NiHBETA and the lowest on NiHZSM-5. The trends in the activity and selectivity were explained by the accessibility of the acid sites, estimated by adsorption of probe molecules followed by IR spectroscopy, and by a simulation of the space available in the pores of these zeolites.

KW - Beta catalysts

KW - Hydrocracking

KW - Hydroisomerization

KW - Mordenite

KW - ZSM-5

KW - Zeolites

KW - n-Octane

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U2 - 10.1016/s0926-860x(98)00231-2

DO - 10.1016/s0926-860x(98)00231-2

M3 - Article

AN - SCOPUS:9344229211

SN - 0926-860X

VL - 176

SP - 119

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

IS - 1

ER -

Hydroisomerization and cracking of n-octane and C₈ isomers on Ni-containing zeolites

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