Kinetic Study on n-Butane Oxidative Dehydrogenation over the (Ni, Fe, Co)-Bi-O/Î-Al2O3 Catalyst

G. Tanimu; B. A. Abussaud; S. Asaoka; H. Alasiri

doi:10.1021/acs.iecr.9b06121

Kinetic Study on n-Butane Oxidative Dehydrogenation over the (Ni, Fe, Co)-Bi-O/Î-Al₂O₃ Catalyst

G. Tanimu^*, B. A. Abussaud, S. Asaoka, H. Alasiri

^*Corresponding author for this work

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

9 Scopus citations

Abstract

The oxidative dehydrogenation of n-butane was investigated over a highly selective (Ni, Fe, Co)-Bi-O/Î-Al₂O₃ catalyst with kinetic studies. The transient response method with O₂ concentration was also utilized to study the oxygen species responsible for dehydrogenation and cracking pathways. Power law models were utilized for the reactions. The activation energies were obtained in the order 34.4 < 68.8 < 88.5 kJ/mol, and pre-exponential factors of 0.857, 1.930, and 0.198 mol/g_cat. min for the first-step dehydrogenation, second-step dehydrogenation, and cracking, respectively, were obtained. The quantitative fixation reveals that the butadiene selectivity mainly reflects the pre-exponential factor as the concentration/accessibility of the active sites.

Original language	English
Pages (from-to)	2773-2780
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	59
Issue number	7
DOIs	https://doi.org/10.1021/acs.iecr.9b06121
State	Published - 19 Feb 2020

Bibliographical note

Publisher Copyright:
Copyright © 2020 American Chemical Society.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1021/acs.iecr.9b06121

Cite this

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title = "Kinetic Study on n-Butane Oxidative Dehydrogenation over the (Ni, Fe, Co)-Bi-O/{\^I}-Al2O3 Catalyst",

abstract = "The oxidative dehydrogenation of n-butane was investigated over a highly selective (Ni, Fe, Co)-Bi-O/{\^I}-Al2O3 catalyst with kinetic studies. The transient response method with O2 concentration was also utilized to study the oxygen species responsible for dehydrogenation and cracking pathways. Power law models were utilized for the reactions. The activation energies were obtained in the order 34.4 < 68.8 < 88.5 kJ/mol, and pre-exponential factors of 0.857, 1.930, and 0.198 mol/gcat. min for the first-step dehydrogenation, second-step dehydrogenation, and cracking, respectively, were obtained. The quantitative fixation reveals that the butadiene selectivity mainly reflects the pre-exponential factor as the concentration/accessibility of the active sites.",

author = "G. Tanimu and Abussaud, {B. A.} and S. Asaoka and H. Alasiri",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

year = "2020",

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doi = "10.1021/acs.iecr.9b06121",

language = "English",

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T1 - Kinetic Study on n-Butane Oxidative Dehydrogenation over the (Ni, Fe, Co)-Bi-O/Î-Al2O3 Catalyst

AU - Tanimu, G.

AU - Abussaud, B. A.

AU - Asaoka, S.

AU - Alasiri, H.

PY - 2020/2/19

Y1 - 2020/2/19

N2 - The oxidative dehydrogenation of n-butane was investigated over a highly selective (Ni, Fe, Co)-Bi-O/Î-Al2O3 catalyst with kinetic studies. The transient response method with O2 concentration was also utilized to study the oxygen species responsible for dehydrogenation and cracking pathways. Power law models were utilized for the reactions. The activation energies were obtained in the order 34.4 < 68.8 < 88.5 kJ/mol, and pre-exponential factors of 0.857, 1.930, and 0.198 mol/gcat. min for the first-step dehydrogenation, second-step dehydrogenation, and cracking, respectively, were obtained. The quantitative fixation reveals that the butadiene selectivity mainly reflects the pre-exponential factor as the concentration/accessibility of the active sites.

AB - The oxidative dehydrogenation of n-butane was investigated over a highly selective (Ni, Fe, Co)-Bi-O/Î-Al2O3 catalyst with kinetic studies. The transient response method with O2 concentration was also utilized to study the oxygen species responsible for dehydrogenation and cracking pathways. Power law models were utilized for the reactions. The activation energies were obtained in the order 34.4 < 68.8 < 88.5 kJ/mol, and pre-exponential factors of 0.857, 1.930, and 0.198 mol/gcat. min for the first-step dehydrogenation, second-step dehydrogenation, and cracking, respectively, were obtained. The quantitative fixation reveals that the butadiene selectivity mainly reflects the pre-exponential factor as the concentration/accessibility of the active sites.

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