Reference : Hydrodynamic Analysis of Gas-Liquid-Liquid-Solid Reactors using the XDEM Numerical Ap...

	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/10993/35235

Title :	Hydrodynamic Analysis of Gas-Liquid-Liquid-Solid Reactors using the XDEM Numerical Approach
Language :	English
Author, co-author :	Baniasadi, Maryam [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Peters, Bernhard [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Baniasadi, Mehdi [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Besseron, Xavier [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Publication date :	16-Jan-2018
Journal title :	Canadian Journal of Chemical Engineering
Publisher :	Chemical Institute of Cana
Peer reviewed :	Yes (verified by ORBilu)
Audience :	International
ISSN :	0008-4034
Keywords :	[en] Dripping Zone ; Liuid-Liquid ; Blast Furnace ; Multiphase Flow ; eXtended Discrete Element Method (XDEM) ; Computational Fluid Dynamics (CFD)
Abstract :	[en] Multiphase reactors are abundantly used in many industries. Among them, few reactors deal with four phases called gas-liquid-liquid-solid systems, which received less attention due to their complex situation. Numerical study of such complex systems is not easy and requires loads of computational effort. In this study, a discrete-continuous numerical model known as eXtended discrete element method (XDEM) is proposed to investigate the hydrodynamic behaviour of fluid phases passing through the packed bed of solid particles. This model is applied to the dripping zone of a blast furnace. In this zone, two distinct liquid phases, namely liquid iron and slag, flow through a pile of coke particles while exchanging momentum. In this work, besides the solid-fluid and gas-liquid interactions, the liquid-liquid interactions are also studied and the phases' mutual effects are discussed. In addition, a sensitivity study on the slag viscosity is performed, which shows the importance of liquid phase properties on the system behaviour. The results evaluation shows that the liquid iron accelerates the downward flow of the slag and the slag decelerates the downward flow of the liquid iron phase due to the resistance force caused by their relative velocity.
Funders :	Fonds National de la Recherche - FnR
Permalink :	http://hdl.handle.net/10993/35235
DOI :	10.1002/cjce.23191
FnR project :	FnR ; FNR6674621 > Maryam Baniasadi > TRIBE > Resolving multi-phase flow of trickle bed reactors by the Extended Discrete Element Method (XDEM) > 15/05/2014 > 14/05/2018 > 2013

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