Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts

Reaction analysis and global kinetics of the partial oxidation of methane (POM) were investigated for Ni–hydroxyapatite composite catalysts (Ni–HAp) containing 5- and 20-wt% Ni. The composite particles were prepared using slurry precursor materials. The amount of each gas component at the exit of th...

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Autores principales:	Tsutomu Nakazato, Takami Kai
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Catalytic partial oxidation Methane Reaction analysis Global kinetics Nickel catalyst Hydroxyapatite composite Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/f7ef137be4914084bc147db330798d3f
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spelling	oai:doaj.org-article:f7ef137be4914084bc147db330798d3f2021-11-26T04:41:52ZReaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts2666-821110.1016/j.ceja.2021.100210https://doaj.org/article/f7ef137be4914084bc147db330798d3f2022-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666821121001253https://doaj.org/toc/2666-8211Reaction analysis and global kinetics of the partial oxidation of methane (POM) were investigated for Ni–hydroxyapatite composite catalysts (Ni–HAp) containing 5- and 20-wt% Ni. The composite particles were prepared using slurry precursor materials. The amount of each gas component at the exit of the reactor was determined on the basis of the change in the gas volume obtained from the total mass balance. As the Ni–HAp catalyst is believed to undergo a direct mechanism of the POM reaction, in the proposed multiple reaction analysis, we assumed the following three independent reactions; direct POM, complete combustion of methane, and a water–gas shift reaction. The extent of these reactions clearly revealed the dominating reaction profile at each temperature. The results indicate that both direct and indirect mechanisms of the POM reaction were followed in parallel even at high temperatures. The activation energy of POM using Ni–HAp catalyst containing 5-wt% Ni was found to be 71.3 kJ/mol. The catalyst were characterized using XRD, BET method, CO pulse method, and TGA. The results of these tests showed the positive effect of changing the Ni loading on the catalyst structure.Tsutomu NakazatoTakami KaiElsevierarticleCatalytic partial oxidationMethaneReaction analysisGlobal kineticsNickel catalystHydroxyapatite compositeChemical engineeringTP155-156ENChemical Engineering Journal Advances, Vol 9, Iss , Pp 100210- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Catalytic partial oxidation Methane Reaction analysis Global kinetics Nickel catalyst Hydroxyapatite composite Chemical engineering TP155-156
spellingShingle	Catalytic partial oxidation Methane Reaction analysis Global kinetics Nickel catalyst Hydroxyapatite composite Chemical engineering TP155-156 Tsutomu Nakazato Takami Kai Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts
description	Reaction analysis and global kinetics of the partial oxidation of methane (POM) were investigated for Ni–hydroxyapatite composite catalysts (Ni–HAp) containing 5- and 20-wt% Ni. The composite particles were prepared using slurry precursor materials. The amount of each gas component at the exit of the reactor was determined on the basis of the change in the gas volume obtained from the total mass balance. As the Ni–HAp catalyst is believed to undergo a direct mechanism of the POM reaction, in the proposed multiple reaction analysis, we assumed the following three independent reactions; direct POM, complete combustion of methane, and a water–gas shift reaction. The extent of these reactions clearly revealed the dominating reaction profile at each temperature. The results indicate that both direct and indirect mechanisms of the POM reaction were followed in parallel even at high temperatures. The activation energy of POM using Ni–HAp catalyst containing 5-wt% Ni was found to be 71.3 kJ/mol. The catalyst were characterized using XRD, BET method, CO pulse method, and TGA. The results of these tests showed the positive effect of changing the Ni loading on the catalyst structure.
format	article
author	Tsutomu Nakazato Takami Kai
author_facet	Tsutomu Nakazato Takami Kai
author_sort	Tsutomu Nakazato
title	Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts
title_short	Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts
title_full	Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts
title_fullStr	Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts
title_full_unstemmed	Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts
title_sort	reaction analysis and global kinetics of partial oxidation of methane using ni–hydroxyapatite composite catalysts
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/f7ef137be4914084bc147db330798d3f
work_keys_str_mv	AT tsutomunakazato reactionanalysisandglobalkineticsofpartialoxidationofmethaneusingnihydroxyapatitecompositecatalysts AT takamikai reactionanalysisandglobalkineticsofpartialoxidationofmethaneusingnihydroxyapatitecompositecatalysts
_version_	1718409818944831488

Reaction analysis and global kinetics of partial oxidation of methane using Ni–hydroxyapatite composite catalysts

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