Carbon-Carbon Bond Cleavage and Dehydrogenation of Isobutane Over HZSM-5 at Low Pressures and Temperatures

Cam Le Minh; Abdullah K Alanazi; David J Miron; Trevor C Brown

doi:10.1007/s10562-012-0921-2

Carbon-Carbon Bond Cleavage and Dehydrogenation of Isobutane Over HZSM-5 at Low Pressures and Temperatures

Cam Le Minh, Abdullah K Alanazi, David J Miron, Trevor C Brown

School of Science & Technology

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

9 Citations (Scopus)

Abstract

Carbon-carbon bond cleavage and dehydrogenation are observed following low-pressure activation of isobutane over HZSM-5. Temperature-dependent rate parameters were determined by flexible least squares modelling of the propene and isobutene formation data. Apparent activation energies are 73.9 ± 2.4 kJ mol⁻¹ (C-C bond cleavage) and 62.8 ± 1.0 kJ mol⁻¹ (dehydrogenation). Such low energy barriers under molecular flow conditions suggest activation steps that are obscured by higher-pressure catalysis.

Original language	English
Pages (from-to)	1470-1473
Journal	Catalysis Letters
Volume	142
Issue number	12
DOIs	https://doi.org/10.1007/s10562-012-0921-2
Publication status	Published - 2012

Keywords

Catalysis and Mechanisms of Reactions
Physical Chemistry of Materials
Chemical Characterisation of Materials

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https://hdl.handle.net/1959.11/12042

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title = "Carbon-Carbon Bond Cleavage and Dehydrogenation of Isobutane Over HZSM-5 at Low Pressures and Temperatures",

abstract = "Carbon-carbon bond cleavage and dehydrogenation are observed following low-pressure activation of isobutane over HZSM-5. Temperature-dependent rate parameters were determined by flexible least squares modelling of the propene and isobutene formation data. Apparent activation energies are 73.9 ± 2.4 kJ mol⁻¹ (C-C bond cleavage) and 62.8 ± 1.0 kJ mol⁻¹ (dehydrogenation). Such low energy barriers under molecular flow conditions suggest activation steps that are obscured by higher-pressure catalysis.",

keywords = "Catalysis and Mechanisms of Reactions, Physical Chemistry of Materials, Chemical Characterisation of Materials",

author = "\{Le Minh\}, Cam and Alanazi, \{Abdullah K\} and Miron, \{David J\} and Brown, \{Trevor C\}",

year = "2012",

doi = "10.1007/s10562-012-0921-2",

language = "English",

volume = "142",

pages = "1470--1473",

journal = "Catalysis Letters",

issn = "1011-372X",

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number = "12",

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TY - JOUR

T1 - Carbon-Carbon Bond Cleavage and Dehydrogenation of Isobutane Over HZSM-5 at Low Pressures and Temperatures

AU - Le Minh, Cam

AU - Alanazi, Abdullah K

AU - Miron, David J

AU - Brown, Trevor C

PY - 2012

Y1 - 2012

N2 - Carbon-carbon bond cleavage and dehydrogenation are observed following low-pressure activation of isobutane over HZSM-5. Temperature-dependent rate parameters were determined by flexible least squares modelling of the propene and isobutene formation data. Apparent activation energies are 73.9 ± 2.4 kJ mol⁻¹ (C-C bond cleavage) and 62.8 ± 1.0 kJ mol⁻¹ (dehydrogenation). Such low energy barriers under molecular flow conditions suggest activation steps that are obscured by higher-pressure catalysis.

AB - Carbon-carbon bond cleavage and dehydrogenation are observed following low-pressure activation of isobutane over HZSM-5. Temperature-dependent rate parameters were determined by flexible least squares modelling of the propene and isobutene formation data. Apparent activation energies are 73.9 ± 2.4 kJ mol⁻¹ (C-C bond cleavage) and 62.8 ± 1.0 kJ mol⁻¹ (dehydrogenation). Such low energy barriers under molecular flow conditions suggest activation steps that are obscured by higher-pressure catalysis.

KW - Catalysis and Mechanisms of Reactions

KW - Physical Chemistry of Materials

KW - Chemical Characterisation of Materials

UR - https://www.scopus.com/pages/publications/84874666328

U2 - 10.1007/s10562-012-0921-2

DO - 10.1007/s10562-012-0921-2

M3 - Article

SN - 1011-372X

VL - 142

SP - 1470

EP - 1473

JO - Catalysis Letters

JF - Catalysis Letters

IS - 12

ER -

Carbon-Carbon Bond Cleavage and Dehydrogenation of Isobutane Over HZSM-5 at Low Pressures and Temperatures

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