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Influence of fluid-mechanical parameters on volumetric mass transfer coefficient in a spout-fluid bed with a draft tube

Authorized Users Only
2015
Authors
Knezević, Milena
Povrenović, Dragan
Article (Published version)
Metadata
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Abstract
In order to apply a spout-fluid bed reactor with a draft tube for the nitrification process of wastewater treatment, the influence of fluid-mechanical parameters on volumetric mass transfer coefficient was analyzed. Experiments were carried out in a 1000 mm high 2D semi-column with a draft tube. The draft tube had a cross section of 50 x 50 mm(2) and the annular region of the reactor had a cross section of 50 x 140 mm(2). The work described in this paper reports the influence of several fluid-mechanical parameters including liquid and gas flow rates, particle diameters and particle circulation on volumetric mass transfer coefficient, k(L)a. The liquid flow ranged from 3.5-4.5 m(3)/h and gas flow ranged from 300 to 800 L/h. The particles used were glass spheres with diameters of 3, 4, 5 and 6 mm. Tap water and air were used as the liquid and gas phase, respectively. The experimental results have shown that particle circulation through the draft tube contributes to k(L)a increase as well... as the increase in the particle diameter, the gas and liquid flow rates.

Keywords:
Three-phase system / Spout-fluid bed / Draft tube / Volumetric mass transfer coefficient / Particle circulation
Source:
Chemical Engineering Science, 2015, 134, 129-137
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
  • The development of efficient chemical-engineering processes based on the transport phenomena research and process intensification principles (RS-172022)

DOI: 10.1016/j.ces.2015.04.030

ISSN: 0009-2509

WoS: 000359029200013

Scopus: 2-s2.0-84929576983
[ Google Scholar ]
11
10
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3113
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Knezević, Milena
AU  - Povrenović, Dragan
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3113
AB  - In order to apply a spout-fluid bed reactor with a draft tube for the nitrification process of wastewater treatment, the influence of fluid-mechanical parameters on volumetric mass transfer coefficient was analyzed. Experiments were carried out in a 1000 mm high 2D semi-column with a draft tube. The draft tube had a cross section of 50 x 50 mm(2) and the annular region of the reactor had a cross section of 50 x 140 mm(2). The work described in this paper reports the influence of several fluid-mechanical parameters including liquid and gas flow rates, particle diameters and particle circulation on volumetric mass transfer coefficient, k(L)a. The liquid flow ranged from 3.5-4.5 m(3)/h and gas flow ranged from 300 to 800 L/h. The particles used were glass spheres with diameters of 3, 4, 5 and 6 mm. Tap water and air were used as the liquid and gas phase, respectively. The experimental results have shown that particle circulation through the draft tube contributes to k(L)a increase as well as the increase in the particle diameter, the gas and liquid flow rates.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Chemical Engineering Science
T1  - Influence of fluid-mechanical parameters on volumetric mass transfer coefficient in a spout-fluid bed with a draft tube
EP  - 137
SP  - 129
VL  - 134
DO  - 10.1016/j.ces.2015.04.030
UR  - conv_4759
ER  - 
@article{
author = "Knezević, Milena and Povrenović, Dragan",
year = "2015",
abstract = "In order to apply a spout-fluid bed reactor with a draft tube for the nitrification process of wastewater treatment, the influence of fluid-mechanical parameters on volumetric mass transfer coefficient was analyzed. Experiments were carried out in a 1000 mm high 2D semi-column with a draft tube. The draft tube had a cross section of 50 x 50 mm(2) and the annular region of the reactor had a cross section of 50 x 140 mm(2). The work described in this paper reports the influence of several fluid-mechanical parameters including liquid and gas flow rates, particle diameters and particle circulation on volumetric mass transfer coefficient, k(L)a. The liquid flow ranged from 3.5-4.5 m(3)/h and gas flow ranged from 300 to 800 L/h. The particles used were glass spheres with diameters of 3, 4, 5 and 6 mm. Tap water and air were used as the liquid and gas phase, respectively. The experimental results have shown that particle circulation through the draft tube contributes to k(L)a increase as well as the increase in the particle diameter, the gas and liquid flow rates.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Chemical Engineering Science",
title = "Influence of fluid-mechanical parameters on volumetric mass transfer coefficient in a spout-fluid bed with a draft tube",
pages = "137-129",
volume = "134",
doi = "10.1016/j.ces.2015.04.030",
url = "conv_4759"
}
Knezević, M.,& Povrenović, D.. (2015). Influence of fluid-mechanical parameters on volumetric mass transfer coefficient in a spout-fluid bed with a draft tube. in Chemical Engineering Science
Pergamon-Elsevier Science Ltd, Oxford., 134, 129-137.
https://doi.org/10.1016/j.ces.2015.04.030
conv_4759
Knezević M, Povrenović D. Influence of fluid-mechanical parameters on volumetric mass transfer coefficient in a spout-fluid bed with a draft tube. in Chemical Engineering Science. 2015;134:129-137.
doi:10.1016/j.ces.2015.04.030
conv_4759 .
Knezević, Milena, Povrenović, Dragan, "Influence of fluid-mechanical parameters on volumetric mass transfer coefficient in a spout-fluid bed with a draft tube" in Chemical Engineering Science, 134 (2015):129-137,
https://doi.org/10.1016/j.ces.2015.04.030 .,
conv_4759 .

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