Staff View: Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters

Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters

The effect of ethanedioic acid (EdA) functionalization on Al2O3 supported Ni catalyst was studied on the hydrodeoxygenation (HDO), isomerization, kinetics and Arrhenius parameters of octadec-9-enoic acid (OA) into biofuel in this report. This was achieved via synthesis of two catalysts; the first, n...

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Main Authors:	Ayodele, O.B., Lethesh, K.C., Gholami, Z., Uemura, Y.
Format:	Article
Published:	Elsevier 2016
Subjects:	TP Chemical technology
Online Access:	http://eprints.um.edu.my/18396/ https://doi.org/10.1016/j.jechem.2015.08.017
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spelling	my.um.eprints.183962017-11-30T06:41:22Z http://eprints.um.edu.my/18396/ Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters Ayodele, O.B. Lethesh, K.C. Gholami, Z. Uemura, Y. TP Chemical technology The effect of ethanedioic acid (EdA) functionalization on Al2O3 supported Ni catalyst was studied on the hydrodeoxygenation (HDO), isomerization, kinetics and Arrhenius parameters of octadec-9-enoic acid (OA) into biofuel in this report. This was achieved via synthesis of two catalysts; the first, nickel alumina catalyst (Ni/Al2O3) was via the incorporation of inorganic Ni precursor into Al2O3; the second was via the incorporation nickel oxalate (NiOx) prepared by functionalization of Ni with EdA into Al2O3 to obtain organometallic NiOx/Al2O3 catalyst. Their characterization results showed that Ni species present in Ni/Al2O3 and NiOx/Al2O3 were 8.2% and 9.3%, respectively according to the energy dispersive X-ray result. NiOx/Al2O3 has comparably higher Ni content due to the EdA functionalization which also increases its acidity and guarantees high Ni dispersion with weaker metal-support-interaction leading to highly reducible Ni as seen in the X-ray diffraction, X-ray photoelectron spectroscopy, TPR and Raman spectroscopy results. Their activities tested on the HDO of OA showed that NiOx/Al2O3 did not only display the best catalytic and reusability abilities, but it also possesses isomerization ability due to its increased acidity. The NiOx/Al2O3 also has the highest rate constants evaluated using pseudo-first-order kinetics, but the least activation energy of 176 kJ/mol in the biofuel formation step compared to 244 kJ/mol evaluated when using Ni/Al2O3. The result is promising for future feasibility studies toward commercialization of catalytic HDO of OA into useful biofuel using organometallic catalysts. Elsevier 2016 Article PeerReviewed Ayodele, O.B. and Lethesh, K.C. and Gholami, Z. and Uemura, Y. (2016) Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters. Journal of Energy Chemistry, 25 (1). pp. 158-168. ISSN 2095-4956 https://doi.org/10.1016/j.jechem.2015.08.017 doi:10.1016/j.jechem.2015.08.017
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Ayodele, O.B. Lethesh, K.C. Gholami, Z. Uemura, Y. Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters
description	The effect of ethanedioic acid (EdA) functionalization on Al2O3 supported Ni catalyst was studied on the hydrodeoxygenation (HDO), isomerization, kinetics and Arrhenius parameters of octadec-9-enoic acid (OA) into biofuel in this report. This was achieved via synthesis of two catalysts; the first, nickel alumina catalyst (Ni/Al2O3) was via the incorporation of inorganic Ni precursor into Al2O3; the second was via the incorporation nickel oxalate (NiOx) prepared by functionalization of Ni with EdA into Al2O3 to obtain organometallic NiOx/Al2O3 catalyst. Their characterization results showed that Ni species present in Ni/Al2O3 and NiOx/Al2O3 were 8.2% and 9.3%, respectively according to the energy dispersive X-ray result. NiOx/Al2O3 has comparably higher Ni content due to the EdA functionalization which also increases its acidity and guarantees high Ni dispersion with weaker metal-support-interaction leading to highly reducible Ni as seen in the X-ray diffraction, X-ray photoelectron spectroscopy, TPR and Raman spectroscopy results. Their activities tested on the HDO of OA showed that NiOx/Al2O3 did not only display the best catalytic and reusability abilities, but it also possesses isomerization ability due to its increased acidity. The NiOx/Al2O3 also has the highest rate constants evaluated using pseudo-first-order kinetics, but the least activation energy of 176 kJ/mol in the biofuel formation step compared to 244 kJ/mol evaluated when using Ni/Al2O3. The result is promising for future feasibility studies toward commercialization of catalytic HDO of OA into useful biofuel using organometallic catalysts.
format	Article
author	Ayodele, O.B. Lethesh, K.C. Gholami, Z. Uemura, Y.
author_facet	Ayodele, O.B. Lethesh, K.C. Gholami, Z. Uemura, Y.
author_sort	Ayodele, O.B.
title	Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters
title_short	Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters
title_full	Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters
title_fullStr	Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters
title_full_unstemmed	Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters
title_sort	effect of ethanedioic acid functionalization on ni/al2o3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: kinetics and arrhenius parameters
publisher	Elsevier
publishDate	2016
url	http://eprints.um.edu.my/18396/ https://doi.org/10.1016/j.jechem.2015.08.017
_version_	1643690693350129664
score	13.211869

Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerization of octadec-9-enoic acid into biofuel: Kinetics and Arrhenius parameters

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