CFD-DEM modeling the effect of column size and bed height on minimum fluidization velocity in micro fluidized beds with Geldart B particles

Xu, Yupeng; Li, Tingwen; Musser, Jordan; Liu, Xiaoxing; Xu, Guangwen; Rogers, William A.

doi:10.1016/j.powtec.2017.06.020

Title: CFD-DEM modeling the effect of column size and bed height on minimum fluidization velocity in micro fluidized beds with Geldart B particles

Abstract

The fluidization behavior of Geldart B particles in micro fluidized beds is investigated numerically using Computational Fluid Dynamics coupled with Discrete Element Method (CFD-DEM) available in the open-source Multiphase Flow with Interphase eXchanges (MFIX) code. The effects of different bed inner diameters (D) of 8 mm, 12 mm, 16 mm and various initial static bed heights (H) were examined. It is found that both decreasing the column diameter and increasing the bed height in a micro fluidized bed increases the minimum fluidization velocity (Umf). The observed overshoot in pressure drop that occurs before the onset of fluidization decreases in magnitude with increasing column diameter, however there is less sensitivity to bed height. Overall, the numerical results agree qualitatively with existing theoretical correlations and experimental studies. The simulations show that both column diameter and particle-wall friction contribute to the variation in minimum fluidization velocity. Finally, these two factors are coupled and hard to separate. The detailed influences of wall friction on minimum fluidization velocity are then investigated for a prescribed column diameter of 8 mm by varying the wall friction from 0 to 0.4.

Authors:

Xu, Yupeng ^[1]; Li, Tingwen ^[2]; Musser, Jordan ^[1]; Liu, Xiaoxing ^[3]; Xu, Guangwen ^[3]; Rogers, William A. ^[1]

National Energy Technology Lab. (NETL), Morgantown, WV (United States)
National Energy Technology Lab. (NETL), Morgantown, WV (United States); AECOM, Morgantown, WV (United States)
Chinese Academy of Sciences (CAS), Beijing (China). State Key Lab. of Multiphase Complex Systems, Inst. of Process Engineering

Publication Date:: Wed Jun 07 00:00:00 EDT 2017

Research Org.:: National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research

Sponsoring Org.:: USDOE Office of Fossil Energy (FE)

OSTI Identifier:: 1417967

Alternate Identifier(s):: OSTI ID: 1495594

Report Number(s):: CONTR-PUB-297
Journal ID: ISSN 0032-5910; PII: S0032591017304795

Grant/Contract Number:: FE0004000

Resource Type:: Accepted Manuscript

Journal Name:: Powder Technology

Additional Journal Information:: Journal Volume: 318; Journal Issue: C; Journal ID: ISSN 0032-5910

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Micro fluidized beds; Wall effect; CFD-DEM; Minimum fluidization velocity; Pressure overshoot

Citation Formats


                    Xu, Yupeng, Li, Tingwen, Musser, Jordan, Liu, Xiaoxing, Xu, Guangwen, and Rogers, William A. CFD-DEM modeling the effect of column size and bed height on minimum fluidization velocity in micro fluidized beds with Geldart B particles.  United States: N. p., 2017. 
Web.  doi:10.1016/j.powtec.2017.06.020.

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                    Xu, Yupeng, Li, Tingwen, Musser, Jordan, Liu, Xiaoxing, Xu, Guangwen, & Rogers, William A. CFD-DEM modeling the effect of column size and bed height on minimum fluidization velocity in micro fluidized beds with Geldart B particles.  United States.  https://doi.org/10.1016/j.powtec.2017.06.020

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                    Xu, Yupeng, Li, Tingwen, Musser, Jordan, Liu, Xiaoxing, Xu, Guangwen, and Rogers, William A. Wed .  
"CFD-DEM modeling the effect of column size and bed height on minimum fluidization velocity in micro fluidized beds with Geldart B particles".  United States.  https://doi.org/10.1016/j.powtec.2017.06.020.  https://www.osti.gov/servlets/purl/1417967.

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@article{osti_1417967,

  title        = {CFD-DEM modeling the effect of column size and bed height on minimum fluidization velocity in micro fluidized beds with Geldart B particles},

  author       = {Xu, Yupeng and Li, Tingwen and Musser, Jordan and Liu, Xiaoxing and Xu, Guangwen and Rogers, William A.},

  abstractNote = {The fluidization behavior of Geldart B particles in micro fluidized beds is investigated numerically using Computational Fluid Dynamics coupled with Discrete Element Method (CFD-DEM) available in the open-source Multiphase Flow with Interphase eXchanges (MFIX) code. The effects of different bed inner diameters (D) of 8 mm, 12 mm, 16 mm and various initial static bed heights (H) were examined. It is found that both decreasing the column diameter and increasing the bed height in a micro fluidized bed increases the minimum fluidization velocity (Umf). The observed overshoot in pressure drop that occurs before the onset of fluidization decreases in magnitude with increasing column diameter, however there is less sensitivity to bed height. Overall, the numerical results agree qualitatively with existing theoretical correlations and experimental studies. The simulations show that both column diameter and particle-wall friction contribute to the variation in minimum fluidization velocity. Finally, these two factors are coupled and hard to separate. The detailed influences of wall friction on minimum fluidization velocity are then investigated for a prescribed column diameter of 8 mm by varying the wall friction from 0 to 0.4.},

  doi          = {10.1016/j.powtec.2017.06.020},

  journal      = {Powder Technology},

  number       = C,

  volume       = 318,

  place        = {United States},

  year         = {Wed Jun 07 00:00:00 EDT 2017},

  month        = {Wed Jun 07 00:00:00 EDT 2017}

}

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Works referenced in this record:

Fluidization with hot compressed water in micro-reactors
journal, November 2005

Potic, B.; Kersten, S. R. A.; Ye, M.
Chemical Engineering Science, Vol. 60, Issue 22
DOI: 10.1016/j.ces.2005.04.047

Kinetics and mechanism of solid reactions in a micro fluidized bed reactor
journal, February 2010

Yu, Jian; Yue, Junrong; Liu, Zhouen
AIChE Journal, Vol. 56, Issue 11
DOI: 10.1002/aic.12205

Isothermal differential characteristics of gas–solid reaction in micro-fluidized bed reactor
journal, January 2013

Yu, Jian; Zeng, Xi; Zhang, Juwei
Fuel, Vol. 103
DOI: 10.1016/j.fuel.2011.09.060

Non-isothermal coal char gasification with CO 2 in a micro fluidized bed reaction analyzer and a thermogravimetric analyzer
journal, January 2016

Wang, Fang; Zeng, Xi; Wang, Yonggang
Fuel, Vol. 164
DOI: 10.1016/j.fuel.2015.09.084

Isothermal Gasification of in Situ / ex Situ Coal Char with CO ₂ in a Micro Fluidized Bed Reaction Analyzer
journal, July 2015

Wang, Fang; Zeng, Xi; Shao, Ruyi
Energy & Fuels, Vol. 29, Issue 8
DOI: 10.1021/acs.energyfuels.5b00676

Characterization of coal char gasification with steam in a micro-fluidized bed reaction analyzer
journal, January 2016

Wang, Fang; Zeng, Xi; Wang, Yonggang
Fuel Processing Technology, Vol. 141
DOI: 10.1016/j.fuproc.2015.04.025

Regeneration Kinetics of Spent FCC Catalyst via Coke Gasification in a Micro Fluidized Bed
journal, January 2015

Zhang, Yuming; Sun, Guogang; Gao, Shiqiu
Procedia Engineering, Vol. 102
DOI: 10.1016/j.proeng.2015.01.312

Reactivity and kinetics for steam gasification of petroleum coke blended with black liquor in a micro fluidized bed
journal, December 2015

Zhang, Yuming; Yao, Meiqin; Gao, Shiqiu
Applied Energy, Vol. 160
DOI: 10.1016/j.apenergy.2015.01.009

Kinetics and Mechanism of Direct Reaction between CO ₂ and Ca(OH) ₂ in Micro Fluidized Bed
journal, June 2013

Yu, Jian; Zeng, Xi; Zhang, Guangyi
Environmental Science & Technology, Vol. 47, Issue 13
DOI: 10.1021/es4001196

Reduction of NO over biomass tar in micro-fluidized bed
journal, February 2014

Song, Yang; Wang, Yin; Yang, Wu
Fuel Processing Technology, Vol. 118
DOI: 10.1016/j.fuproc.2013.09.007

Characterization of Char Gasification in a Micro Fluidized Bed Reaction Analyzer
journal, February 2014

Zeng, Xi; Wang, Fang; Wang, Yonggang
Energy & Fuels, Vol. 28, Issue 3
DOI: 10.1021/ef402387r

Micro-structured fluidized bed membrane reactors: Solids circulation and densified zones distribution
journal, March 2014

Dang, Nhi T. Y.; Gallucci, Fausto; van Sint Annaland, Martin
Chemical Engineering Journal, Vol. 239
DOI: 10.1016/j.cej.2013.11.001

Comparison between fixed bed and fluidized bed membrane reactor configurations for PEM based micro-cogeneration systems
journal, July 2011

Roses, Leonardo; Gallucci, Fausto; Manzolini, Giampaolo
Chemical Engineering Journal, Vol. 171, Issue 3
DOI: 10.1016/j.cej.2011.05.061

Steam reforming of propane in a fluidized bed membrane reactor for hydrogen production
journal, June 2010

Rakib, Mohammad A.; Grace, John R.; Lim, C. Jim
International Journal of Hydrogen Energy, Vol. 35, Issue 12
DOI: 10.1016/j.ijhydene.2010.03.136

Influence of Reactor and Particle Scale on the Hydrodynamics of Microstructured Fluidized Bed Membrane Reactors
journal, December 2013

Dang, Nhi T. Y.; Gallucci, Fausto; van Sint Annaland, Martin
Industrial & Engineering Chemistry Research, Vol. 52, Issue 51
DOI: 10.1021/ie402768b

Gas back-mixing study in a membrane-assisted micro-structured fluidized bed
journal, April 2014

Dang, T. Y. N.; Gallucci, F.; van Sint Annaland, M.
Chemical Engineering Science, Vol. 108
DOI: 10.1016/j.ces.2014.01.013

An experimental investigation on the onset from bubbling to turbulent fluidization regime in micro-structured fluidized beds
journal, April 2014

Dang, Nhi T. Y.; Gallucci, Fausto; van Sint Annaland, Martin
Powder Technology, Vol. 256
DOI: 10.1016/j.powtec.2014.02.027

Gas mixing study in freely bubbling and turbulent gas–solid fluidized beds with a novel infrared technique coupled with digital image analysis
journal, September 2014

Dang, T. Y. N.; Gallucci, F.; van Sint Annaland, M.
Chemical Engineering Science, Vol. 116
DOI: 10.1016/j.ces.2014.04.038

Fluidisation and packed bed behaviour in capillary tubes
journal, June 2012

Doroodchi, Elham; Peng, Zhengbiao; Sathe, Mayur
Powder Technology, Vol. 223
DOI: 10.1016/j.powtec.2011.08.011

Single bubble behavior in gas–liquid–solid mini-fluidized beds
journal, February 2016

Li, Yanjun; Liu, Mingyan; Li, Xiangnan
Chemical Engineering Journal, Vol. 286
DOI: 10.1016/j.cej.2015.10.071

Micro fluidized beds: Wall effect and operability
journal, April 2008

Liu, Xinhua; Xu, Guangwen; Gao, Shiqiu
Chemical Engineering Journal, Vol. 137, Issue 2
DOI: 10.1016/j.cej.2007.04.035

Fluidization Characteristics in Micro-Fluidized Beds of Various Inner Diameters
journal, December 2009

Guo, Q. j.; Xu, Y.; Yue, X.
Chemical Engineering & Technology, Vol. 32, Issue 12
DOI: 10.1002/ceat.200900092

Gas−Solid Fluidization in Mini- and Micro-channels
journal, April 2011

Wang, Fei; Fan, Liang-Shih
Industrial & Engineering Chemistry Research, Vol. 50, Issue 8
DOI: 10.1021/ie102245m

Effects of reducing the reactor diameter on the fluidization of a very dense powder
journal, June 2015

Vanni, F.; Caussat, B.; Ablitzer, C.
Powder Technology, Vol. 277
DOI: 10.1016/j.powtec.2015.03.010

Wall effects for the pressure drop in fixed beds
journal, July 2004

Di Felice, R.; Gibilaro, L. G.
Chemical Engineering Science, Vol. 59, Issue 14
DOI: 10.1016/j.ces.2004.03.030

Two-fluid modeling of Geldart A particles in gas–solid micro-fluidized beds
journal, August 2015

Liu, Xiaoxing; Zhu, Chuanqiang; Geng, Shujun
Particuology, Vol. 21
DOI: 10.1016/j.partic.2014.05.012

Influence of collisional parameters for rough particles on simulation of a gas-fluidized bed using a two-fluid model
journal, May 2015

Zhao, Yunhua; Lu, Bing; Zhong, Yingjie
International Journal of Multiphase Flow, Vol. 71
DOI: 10.1016/j.ijmultiphaseflow.2014.12.002

Improvement of the simulation of fuel particles motion in a fluidized bed by considering wall friction
journal, August 2017

Garcia-Gutierrez, L. M.; Hernández-Jiménez, F.; Cano-Pleite, E.
Chemical Engineering Journal, Vol. 321
DOI: 10.1016/j.cej.2017.03.109

Modification of kinetic theory of granular flow for frictional spheres, part II: Model validation
journal, October 2016

Yang, L. (Lei); Padding, J. T. (Johan); Kuipers, J. A. M. (Hans)
Chemical Engineering Science, Vol. 152
DOI: 10.1016/j.ces.2016.06.015

From bubbling to turbulent fluidization: Advanced onset of regime transition in micro-fluidized beds
journal, May 2011

Wang, Junwu; Tan, Lianghui; van der Hoef, M. A.
Chemical Engineering Science, Vol. 66, Issue 9
DOI: 10.1016/j.ces.2011.02.003

Simulation study on the effect of gas permeation on the hydrodynamic characteristics of membrane-assisted micro fluidized beds
journal, September 2014

Tan, Lianghui; Roghair, Ivo; van Sint Annaland, Martin
Applied Mathematical Modelling, Vol. 38, Issue 17-18
DOI: 10.1016/j.apm.2014.04.044

Discrete particle simulations of micro membrane-assisted fluidized beds with H2 extraction
journal, June 2016

Tan, Lianghui; Roghair, Ivo; van Sint Annaland, Martin
International Journal of Hydrogen Energy, Vol. 41, Issue 20
DOI: 10.1016/j.ijhydene.2016.01.176

The effect of cohesive forces on the fluidization of aeratable powders
journal, December 2013

Galvin, Janine E.; Benyahia, Sofiane
AIChE Journal, Vol. 60, Issue 2
DOI: 10.1002/aic.14307

Open-source MFIX-DEM software for gas–solids flows: Part I—Verification studies
journal, April 2012

Garg, Rahul; Galvin, Janine; Li, Tingwen
Powder Technology, Vol. 220
DOI: 10.1016/j.powtec.2011.09.019

Open-source MFIX-DEM software for gas-solids flows: Part II — Validation studies
journal, April 2012

Li, Tingwen; Garg, Rahul; Galvin, Janine
Powder Technology, Vol. 220
DOI: 10.1016/j.powtec.2011.09.020

Phase Transition for a Hard Sphere System
journal, November 1957

Alder, B. J.; Wainwright, T. E.
The Journal of Chemical Physics, Vol. 27, Issue 5
DOI: 10.1063/1.1743957

Detailed numerical simulation of an intruder impacting on a granular bed using a hybrid discrete particle and immersed boundary (DP-IB) method
journal, December 2013

Xu, Y.; Padding, J. T.; van der Hoef, M. A.
Chemical Engineering Science, Vol. 104
DOI: 10.1016/j.ces.2013.09.023

Numerical investigation of the vertical plunging force of a spherical intruder into a prefluidized granular bed
journal, December 2014

Xu, Y.; Padding, J. T.; Kuipers, J. A. M.
Physical Review E, Vol. 90, Issue 6
DOI: 10.1103/PhysRevE.90.062203

Numerical simulation of gas–liquid–solid flows using a combined front tracking and discrete particle method
journal, November 2005

van Sint Annaland, M.; Deen, N. G.; Kuipers, J. A. M.
Chemical Engineering Science, Vol. 60, Issue 22
DOI: 10.1016/j.ces.2005.04.038

Large-scale DNS of gas–solid flows on Mole-8.5
journal, March 2012

Xiong, Qingang; Li, Bo; Zhou, Guofeng
Chemical Engineering Science, Vol. 71
DOI: 10.1016/j.ces.2011.10.059

A representation of curved boundaries for the solution of the Navier–Stokes equations on a staggered three-dimensional Cartesian grid
journal, January 2003

Kirkpatrick, M. P.; Armfield, S. W.; Kent, J. H.
Journal of Computational Physics, Vol. 184, Issue 1
DOI: 10.1016/S0021-9991(02)00013-X

Hybrid parallelism in MFIX CFD-DEM using OpenMP
journal, June 2014

Liu, Handan; Tafti, Danesh K.; Li, Tingwen
Powder Technology, Vol. 259
DOI: 10.1016/j.powtec.2014.03.047

Development of parallel DEM for the open source code MFIX
journal, February 2013

Gopalakrishnan, Pradeep; Tafti, Danesh
Powder Technology, Vol. 235
DOI: 10.1016/j.powtec.2012.09.006

The mechanics of gas fluidized beds with an interval of stable fluidization
journal, October 1993

Tsinontides, S. C.; Jackson, R.
Journal of Fluid Mechanics, Vol. 255, Issue -1
DOI: 10.1017/S0022112093002472

The tensile strength of cohesive powders and its relationship to consolidation, free volume and cohesivity
journal, July 1998

Valverde, José Manuel; Ramos, Antonio; Castellanos, Antonio
Powder Technology, Vol. 97, Issue 3
DOI: 10.1016/S0032-5910(98)00025-4

The role of contact stresses and wall friction on fluidization
journal, December 2002

Loezos, Peter N.; Costamagna, Paola; Sundaresan, Sankaran
Chemical Engineering Science, Vol. 57, Issue 24
DOI: 10.1016/S0009-2509(02)00421-9

Works referencing / citing this record:

Efficient fluoride removal using Al-Cu oxide nanoparticles supported on steel slag industrial waste solid
journal, December 2017

Blanco-Flores, Alien; Arteaga-Larios, Nubia; Pérez-García, Víctor
Environmental Science and Pollution Research, Vol. 25, Issue 7
DOI: 10.1007/s11356-017-0849-6

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Title: CFD-DEM modeling the effect of column size and bed height on minimum fluidization velocity in micro fluidized beds with Geldart B particles

Abstract

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Detailed numerical simulation of an intruder impacting on a granular bed using a hybrid discrete particle and immersed boundary (DP-IB) method journal, December 2013

Numerical investigation of the vertical plunging force of a spherical intruder into a prefluidized granular bed journal, December 2014

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Wall effects for the pressure drop in fixed beds
journal, July 2004

Two-fluid modeling of Geldart A particles in gas–solid micro-fluidized beds
journal, August 2015

Influence of collisional parameters for rough particles on simulation of a gas-fluidized bed using a two-fluid model
journal, May 2015

Improvement of the simulation of fuel particles motion in a fluidized bed by considering wall friction
journal, August 2017

Modification of kinetic theory of granular flow for frictional spheres, part II: Model validation
journal, October 2016

From bubbling to turbulent fluidization: Advanced onset of regime transition in micro-fluidized beds
journal, May 2011

Simulation study on the effect of gas permeation on the hydrodynamic characteristics of membrane-assisted micro fluidized beds
journal, September 2014

Discrete particle simulations of micro membrane-assisted fluidized beds with H2 extraction
journal, June 2016

The effect of cohesive forces on the fluidization of aeratable powders
journal, December 2013

Open-source MFIX-DEM software for gas–solids flows: Part I—Verification studies
journal, April 2012

Open-source MFIX-DEM software for gas-solids flows: Part II — Validation studies
journal, April 2012

Phase Transition for a Hard Sphere System
journal, November 1957

Detailed numerical simulation of an intruder impacting on a granular bed using a hybrid discrete particle and immersed boundary (DP-IB) method
journal, December 2013

Numerical investigation of the vertical plunging force of a spherical intruder into a prefluidized granular bed
journal, December 2014

Numerical simulation of gas–liquid–solid flows using a combined front tracking and discrete particle method
journal, November 2005

Large-scale DNS of gas–solid flows on Mole-8.5
journal, March 2012

A representation of curved boundaries for the solution of the Navier–Stokes equations on a staggered three-dimensional Cartesian grid
journal, January 2003

Hybrid parallelism in MFIX CFD-DEM using OpenMP
journal, June 2014

Development of parallel DEM for the open source code MFIX
journal, February 2013

The mechanics of gas fluidized beds with an interval of stable fluidization
journal, October 1993

The tensile strength of cohesive powders and its relationship to consolidation, free volume and cohesivity
journal, July 1998

The role of contact stresses and wall friction on fluidization
journal, December 2002

Efficient fluoride removal using Al-Cu oxide nanoparticles supported on steel slag industrial waste solid
journal, December 2017