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

Title
Carbon-Carbon Bond Cleavage and Dehydrogenation of Isobutane Over HZSM-5 at Low Pressures and Temperatures
Publication Date
2012
Author(s)
Le Minh, Cam
Alanazi, Abdullah K
Miron, David J
( author )
OrcID: https://orcid.org/0000-0003-2157-5439
Email: dmiron@une.edu.au
UNE Id une-id:dmiron
Brown, Trevor C
( author )
OrcID: https://orcid.org/0000-0003-0008-1309
Email: tbrown3@une.edu.au
UNE Id une-id:tbrown3
Type of document
Journal Article
Language
en
Entity Type
Publication
Publisher
Springer New York LLC
Place of publication
United States of America
DOI
10.1007/s10562-012-0921-2
UNE publication id
une:12245
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.
Link
Citation
Catalysis Letters, 142(12), p. 1470-1473
ISSN
1572-879X
1011-372X
Start page
1470
End page
1473

Files:

NameSizeformatDescriptionLink