Particle dispersion in viscous three-phase inverse fluidized beds

Kyoung Il Lee, Sung Mo Son, Uk Yeong Kim, Yong Kang, Suck Hwan Kang, Sang Done Kim, Jea Keun Lee, Yong Chil Seo, Woo Hyun Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Dispersion characteristics of low density fluidized particles such as polyethylene and polypropylene were investigated by using the stochastic method in three-phase inverse fluidized beds with viscous liquid medium (0.152 m ID × 2.5 m in height). To establish the relationship between the pressure drop variation and the particle dispersion in test section, the histogram of pressure drop fluctuations were also measured and analyzed. Effects of operating variables such as gas and liquid velocities, liquid viscosity and media particle kind (density) on the fluctuating frequency, dispersion coefficient and exiting rate of media particles from the test section were determined. The fluctuating frequency and dispersion coefficient of particles increased with increasing gas or liquid velocity, but decreased considerably with increasing liquid viscosity in three-phase inverse fluidized beds. The dispersion coefficient of media particles of relatively higher density exhibited a value higher than that of lower density particles. The dispersion coefficients of particles were well correlated with operating variables in terms of dimensionless groups.

Original languageEnglish
Pages (from-to)7060-7067
Number of pages8
JournalChemical Engineering Science
Volume62
Issue number24
DOIs
Publication statusPublished - 2007 Dec 1

Fingerprint

Fluidized Bed
Fluidized beds
Liquid
Viscosity of liquids
Pressure drop
Pressure Drop
Liquids
Coefficient
Gases
Viscosity
Polypropylenes
Polyethylene
Polypropylene
Polyethylenes
Stochastic Methods
Dimensionless
Histogram
Fluctuations

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Il Lee, K., Mo Son, S., Yeong Kim, U., Kang, Y., Hwan Kang, S., Done Kim, S., ... Hyun Kim, W. (2007). Particle dispersion in viscous three-phase inverse fluidized beds. Chemical Engineering Science, 62(24), 7060-7067. https://doi.org/10.1016/j.ces.2007.08.024
Il Lee, Kyoung ; Mo Son, Sung ; Yeong Kim, Uk ; Kang, Yong ; Hwan Kang, Suck ; Done Kim, Sang ; Keun Lee, Jea ; Chil Seo, Yong ; Hyun Kim, Woo. / Particle dispersion in viscous three-phase inverse fluidized beds. In: Chemical Engineering Science. 2007 ; Vol. 62, No. 24. pp. 7060-7067.
@article{7bce3a261e9e42c9a136fb581a2aae79,
title = "Particle dispersion in viscous three-phase inverse fluidized beds",
abstract = "Dispersion characteristics of low density fluidized particles such as polyethylene and polypropylene were investigated by using the stochastic method in three-phase inverse fluidized beds with viscous liquid medium (0.152 m ID × 2.5 m in height). To establish the relationship between the pressure drop variation and the particle dispersion in test section, the histogram of pressure drop fluctuations were also measured and analyzed. Effects of operating variables such as gas and liquid velocities, liquid viscosity and media particle kind (density) on the fluctuating frequency, dispersion coefficient and exiting rate of media particles from the test section were determined. The fluctuating frequency and dispersion coefficient of particles increased with increasing gas or liquid velocity, but decreased considerably with increasing liquid viscosity in three-phase inverse fluidized beds. The dispersion coefficient of media particles of relatively higher density exhibited a value higher than that of lower density particles. The dispersion coefficients of particles were well correlated with operating variables in terms of dimensionless groups.",
author = "{Il Lee}, Kyoung and {Mo Son}, Sung and {Yeong Kim}, Uk and Yong Kang and {Hwan Kang}, Suck and {Done Kim}, Sang and {Keun Lee}, Jea and {Chil Seo}, Yong and {Hyun Kim}, Woo",
year = "2007",
month = "12",
day = "1",
doi = "10.1016/j.ces.2007.08.024",
language = "English",
volume = "62",
pages = "7060--7067",
journal = "Chemical Engineering Science",
issn = "0009-2509",
publisher = "Elsevier BV",
number = "24",

}

Il Lee, K, Mo Son, S, Yeong Kim, U, Kang, Y, Hwan Kang, S, Done Kim, S, Keun Lee, J, Chil Seo, Y & Hyun Kim, W 2007, 'Particle dispersion in viscous three-phase inverse fluidized beds', Chemical Engineering Science, vol. 62, no. 24, pp. 7060-7067. https://doi.org/10.1016/j.ces.2007.08.024

Particle dispersion in viscous three-phase inverse fluidized beds. / Il Lee, Kyoung; Mo Son, Sung; Yeong Kim, Uk; Kang, Yong; Hwan Kang, Suck; Done Kim, Sang; Keun Lee, Jea; Chil Seo, Yong; Hyun Kim, Woo.

In: Chemical Engineering Science, Vol. 62, No. 24, 01.12.2007, p. 7060-7067.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Particle dispersion in viscous three-phase inverse fluidized beds

AU - Il Lee, Kyoung

AU - Mo Son, Sung

AU - Yeong Kim, Uk

AU - Kang, Yong

AU - Hwan Kang, Suck

AU - Done Kim, Sang

AU - Keun Lee, Jea

AU - Chil Seo, Yong

AU - Hyun Kim, Woo

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Dispersion characteristics of low density fluidized particles such as polyethylene and polypropylene were investigated by using the stochastic method in three-phase inverse fluidized beds with viscous liquid medium (0.152 m ID × 2.5 m in height). To establish the relationship between the pressure drop variation and the particle dispersion in test section, the histogram of pressure drop fluctuations were also measured and analyzed. Effects of operating variables such as gas and liquid velocities, liquid viscosity and media particle kind (density) on the fluctuating frequency, dispersion coefficient and exiting rate of media particles from the test section were determined. The fluctuating frequency and dispersion coefficient of particles increased with increasing gas or liquid velocity, but decreased considerably with increasing liquid viscosity in three-phase inverse fluidized beds. The dispersion coefficient of media particles of relatively higher density exhibited a value higher than that of lower density particles. The dispersion coefficients of particles were well correlated with operating variables in terms of dimensionless groups.

AB - Dispersion characteristics of low density fluidized particles such as polyethylene and polypropylene were investigated by using the stochastic method in three-phase inverse fluidized beds with viscous liquid medium (0.152 m ID × 2.5 m in height). To establish the relationship between the pressure drop variation and the particle dispersion in test section, the histogram of pressure drop fluctuations were also measured and analyzed. Effects of operating variables such as gas and liquid velocities, liquid viscosity and media particle kind (density) on the fluctuating frequency, dispersion coefficient and exiting rate of media particles from the test section were determined. The fluctuating frequency and dispersion coefficient of particles increased with increasing gas or liquid velocity, but decreased considerably with increasing liquid viscosity in three-phase inverse fluidized beds. The dispersion coefficient of media particles of relatively higher density exhibited a value higher than that of lower density particles. The dispersion coefficients of particles were well correlated with operating variables in terms of dimensionless groups.

UR - http://www.scopus.com/inward/record.url?scp=36049022143&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36049022143&partnerID=8YFLogxK

U2 - 10.1016/j.ces.2007.08.024

DO - 10.1016/j.ces.2007.08.024

M3 - Article

AN - SCOPUS:36049022143

VL - 62

SP - 7060

EP - 7067

JO - Chemical Engineering Science

JF - Chemical Engineering Science

SN - 0009-2509

IS - 24

ER -

Il Lee K, Mo Son S, Yeong Kim U, Kang Y, Hwan Kang S, Done Kim S et al. Particle dispersion in viscous three-phase inverse fluidized beds. Chemical Engineering Science. 2007 Dec 1;62(24):7060-7067. https://doi.org/10.1016/j.ces.2007.08.024