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Title: Void fraction, bubble size and interfacial area measurements in co-current downflow bubble column reactor with microbubble dispersion

Abstract

Micro-bubbles dispersed in bubble column reactors have received great interest in recent years, due to their small size, stability, high gas-liquid interfacial area concentrations and longer residence times. The high gas-liquid interfacial area concentrations lead to high mass transfer rates compared to conventional bubble column reactors. In the present work, experiments have been performed in a down-flow bubble column reactor with micro-bubbles generated and dispersed by a novel mechanism to determine the gas-liquid interfacial area concentrations by measuring the void fraction and bubble size distributions. Gamma-ray densitometry has been employed to determine the axial and radial distributions of void fraction and a high speed camera equipped with a borescope is used to measure the axial and radial variations of bubble sizes. Also, the effects of superficial gas and liquid velocities on the two-phase flow characteristics have been investigated. Further, reconstruction techniques of the radial void fraction profiles from the gamma densitometry's chordal measurements are discussed and compared for a bubble column reactor with dispersed micro-bubbles. The results demonstrate that the new bubble generation technique offers high interfacial area concentrations (1,000 to 4,500 m2/m3) with sub-millimeter bubbles (500 to 900 µm) and high overall void fractions (10% – 60%) in comparisonmore » with previous bubble column reactor designs. The void fraction data was analyzed using slip velocity model and empirical correlation has been proposed to predict the Sauter mean bubble diameter.« less

Authors:
 [1];  [1];  [1];  [1];  [2];  [1]
  1. City College of New York, NY (United States)
  2. Homi Bhabha National Inst., Mumbai (India)
Publication Date:
Research Org.:
City College of New York, NY (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); USNRC
Contributing Org.:
LanzaTech
OSTI Identifier:
1368176
Alternate Identifier(s):
OSTI ID: 1398057
Grant/Contract Number:  
AR0000438; NRC-27-10-1120; NRC-HQ-12-G-38-0
Resource Type:
Accepted Manuscript
Journal Name:
Chemical Engineering Science
Additional Journal Information:
Journal Volume: 168; Journal Issue: C; Journal ID: ISSN 0009-2509
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; Bubble column reactor; Microbubbles; Gamma-ray densitometry; High speed video photography; Void fraction profiles

Citation Formats

Hernandez-Alvarado, Freddy, Kalaga, Dinesh V., Turney, Damon, Banerjee, Sanjoy, Joshi, Jyeshtharaj B., and Kawaji, Masahiro. Void fraction, bubble size and interfacial area measurements in co-current downflow bubble column reactor with microbubble dispersion. United States: N. p., 2017. Web. doi:10.1016/j.ces.2017.05.006.
Hernandez-Alvarado, Freddy, Kalaga, Dinesh V., Turney, Damon, Banerjee, Sanjoy, Joshi, Jyeshtharaj B., & Kawaji, Masahiro. Void fraction, bubble size and interfacial area measurements in co-current downflow bubble column reactor with microbubble dispersion. United States. https://doi.org/10.1016/j.ces.2017.05.006
Hernandez-Alvarado, Freddy, Kalaga, Dinesh V., Turney, Damon, Banerjee, Sanjoy, Joshi, Jyeshtharaj B., and Kawaji, Masahiro. Sat . "Void fraction, bubble size and interfacial area measurements in co-current downflow bubble column reactor with microbubble dispersion". United States. https://doi.org/10.1016/j.ces.2017.05.006. https://www.osti.gov/servlets/purl/1368176.
@article{osti_1368176,
title = {Void fraction, bubble size and interfacial area measurements in co-current downflow bubble column reactor with microbubble dispersion},
author = {Hernandez-Alvarado, Freddy and Kalaga, Dinesh V. and Turney, Damon and Banerjee, Sanjoy and Joshi, Jyeshtharaj B. and Kawaji, Masahiro},
abstractNote = {Micro-bubbles dispersed in bubble column reactors have received great interest in recent years, due to their small size, stability, high gas-liquid interfacial area concentrations and longer residence times. The high gas-liquid interfacial area concentrations lead to high mass transfer rates compared to conventional bubble column reactors. In the present work, experiments have been performed in a down-flow bubble column reactor with micro-bubbles generated and dispersed by a novel mechanism to determine the gas-liquid interfacial area concentrations by measuring the void fraction and bubble size distributions. Gamma-ray densitometry has been employed to determine the axial and radial distributions of void fraction and a high speed camera equipped with a borescope is used to measure the axial and radial variations of bubble sizes. Also, the effects of superficial gas and liquid velocities on the two-phase flow characteristics have been investigated. Further, reconstruction techniques of the radial void fraction profiles from the gamma densitometry's chordal measurements are discussed and compared for a bubble column reactor with dispersed micro-bubbles. The results demonstrate that the new bubble generation technique offers high interfacial area concentrations (1,000 to 4,500 m2/m3) with sub-millimeter bubbles (500 to 900 µm) and high overall void fractions (10% – 60%) in comparison with previous bubble column reactor designs. The void fraction data was analyzed using slip velocity model and empirical correlation has been proposed to predict the Sauter mean bubble diameter.},
doi = {10.1016/j.ces.2017.05.006},
journal = {Chemical Engineering Science},
number = C,
volume = 168,
place = {United States},
year = {Sat May 06 00:00:00 EDT 2017},
month = {Sat May 06 00:00:00 EDT 2017}
}

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Cited by: 39 works
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Works referenced in this record:

CFD simulations of a bubble column with and without internals by using OpenFOAM
journal, June 2017


Gas entrainment by plunging liquid jets
journal, November 1993


A comparative study of gas hold-up, bubble size, interfacial area and mass transfer coefficients in stirred gas–liquid reactors and bubble columns
journal, February 2001

  • Bouaifi, Mounir; Hebrard, Gilles; Bastoul, Dominique
  • Chemical Engineering and Processing: Process Intensification, Vol. 40, Issue 2
  • DOI: 10.1016/S0255-2701(00)00129-X

Hydrodynamics and gas-liquid mass transfer in a downward venturi-bubble column combination
journal, September 1992


Design aspects of gamma densitometers for void fraction measurements in small scale two-phase flows
journal, November 1981


Experimental study of two-phase pump performance using a full size nuclear reactor pump
journal, September 1999


Solid−Liquid Circulating Multistage Fluidized Bed: Hydrodynamic Study
journal, March 2009

  • Chavan, Prakash V.; Kalaga, Dinesh V.; Joshi, Jyeshtharaj B.
  • Industrial & Engineering Chemistry Research, Vol. 48, Issue 9
  • DOI: 10.1021/ie8018627

Effect of frothers and dodecylamine on bubble size and gas holdup in a downflow column
journal, October 2015


The control of micro-air-bubble generation by a rotational porous plate
journal, August 2003

  • Fujikawa, Shigeo; Zhang, Rongsheng; Hayama, Shinji
  • International Journal of Multiphase Flow, Vol. 29, Issue 8
  • DOI: 10.1016/S0301-9322(03)00106-X

Comparison of Gas Hold-Up Profiles in Co-Current, Counter-Current and Batch Bubble Column Reactors Measured Using Gamma Densitometry and Surface of Revolution Method
conference, December 2016

  • Hernandez-Alvarado, Freddy; Kalaga, Dinesh V.; Banerjee, Sanjoy
  • ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics
  • DOI: 10.1115/FEDSM2016-1025

Numerical and Experimental Analysis of Single Phase Jet Interactions
conference, December 2016

  • Hernandez-Alvarado, Freddy; Samaroo, Randy; Kalaga, Dinesh V.
  • ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics
  • DOI: 10.1115/FEDSM2016-1026

Some industrial applications of gamma-ray tomography
journal, November 2009

  • Kalaga, Dinesh V.; Kulkarni, Anand V.; Acharya, Rajesh
  • Journal of the Taiwan Institute of Chemical Engineers, Vol. 40, Issue 6
  • DOI: 10.1016/j.jtice.2009.05.012

Phase and velocity distributions and holdup in high-pressure steam/water stratified flow in a large diameter horizontal pipe
journal, March 1987


Effect of Surfactant Addition on Void Fraction Distributions Measured by a Wire Mesh Sensor
conference, December 2016

  • Kleinbart, Simon; Hernandez-Alvarado, Freddy; Kalaga, Dinesh V.
  • ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics
  • DOI: 10.1115/FEDSM2016-1047

Operating and hydrodynamic characteristics of a cocurrent downflow bubble column reactor
journal, December 1994


Bubble size distribution and gas–liquid interfacial area in a modified downflow bubble column
journal, September 2006

  • Majumder, Subrata Kumar; Kundu, Gautam; Mukherjee, Dibyendu
  • Chemical Engineering Journal, Vol. 122, Issue 1-2
  • DOI: 10.1016/j.cej.2006.04.007

Gas holdup and entrainment characteristics in a modified downflow bubble column with Newtonian and non-Newtonian liquid
journal, October 2003

  • Mandal, Ajay; Kundu, Gautam; Mukherjee, Dibyendu
  • Chemical Engineering and Processing: Process Intensification, Vol. 42, Issue 10
  • DOI: 10.1016/S0255-2701(02)00134-4

Interfacial Area and Liquid-Side Volumetric Mass Transfer Coefficient in a Downflow Bubble Column
journal, April 2003

  • Mandal, Ajay; Kundu, Gautam; Mukherjee, Dibyendu
  • The Canadian Journal of Chemical Engineering, Vol. 81, Issue 2
  • DOI: 10.1002/cjce.5450810206

Studies on frictional pressure drop of gas-non-Newtonian two-phase flow in a cocurrent downflow bubble column
journal, September 2004

  • Mandal, Ajay; Kundu, Gautam; Mukherjee, Dibyendu
  • Chemical Engineering Science, Vol. 59, Issue 18
  • DOI: 10.1016/j.ces.2004.03.037

A Comparative Study of Gas Holdup, Bubble Size Distribution and Interfacial Area in a Downflow Bubble Column
journal, April 2005

  • Mandal, A.; Kundu, G.; Mukherjee, D.
  • Chemical Engineering Research and Design, Vol. 83, Issue 4
  • DOI: 10.1205/cherd.04065

Mass transfer properties in a bubble column associated with micro-bubble dispersions
journal, August 2013


Gas holdup in downflow bubble columns with gas entrainment by a liquid jet.
journal, January 1985

  • Ohkawa, Akira; Shiokawa, Yoshihiro; Sakai, Nobuyuki
  • JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, Vol. 18, Issue 2
  • DOI: 10.1252/jcej.18.172

Performance of a new micro-bubble generator with a spherical body in a flowing water tube
journal, June 2005


Bubble size distributions in a bubble column reactor under industrial conditions
journal, August 2002


Gamma-densitometry tomography of gas holdup spatial distribution in industrial-scale bubble columns
journal, July 1997


Gas holdup in two- and three-phase downflow bubble columns
journal, January 1983


Microbubble formations in MEMS-fabricated rectangular channels: A high-speed observation
journal, April 2008


Characterization of an acoustic cavitation bubble structure at 230 kHz
journal, March 2011


Formation of monodisperse microbubbles in a microfluidic device
journal, June 2006

  • Xu, J. H.; Li, S. W.; Chen, G. G.
  • AIChE Journal, Vol. 52, Issue 6
  • DOI: 10.1002/aic.10824

Works referencing / citing this record:

Two-Phase Bubble Columns: A Comprehensive Review
journal, March 2018


Air Dispersion and Bubble Characteristics in a Downflow Flotation Column
journal, October 2018

  • Zhu, Hongzheng; Valdivieso, Alejandro Lόpez; Zhu, Jinbo
  • Mineral Processing and Extractive Metallurgy Review, Vol. 40, Issue 3
  • DOI: 10.1080/08827508.2018.1556159

Void fraction distribution in a bisectional bubble column reactor
journal, January 2019

  • Bombač, Andrej; Rek, Zlatko; Levec, Janez
  • AIChE Journal, Vol. 65, Issue 4
  • DOI: 10.1002/aic.16534

A micro-jet array for economic intensification of gas transfer in bioreactors
journal, October 2018

  • Turney, D. E.; Ansari, M.; Kalaga, D. V.
  • Biotechnology Progress, Vol. 35, Issue 1
  • DOI: 10.1002/btpr.2710