Gamma ray tomography-An experimental analysis of fractional gas hold-up in bubble columns

被引：0

作者：

Patel, Ashutosh K. ^{[1
]}

Thorat, Bhaskar N. ^{[1
]}

机构：

[1] Chemical Engineering Department, Institute of Chemical Technology (ICT), N.M. Parekh Road, Matunga (E), Mumbai, Maharashtra 400019, India

来源：

Chemical Engineering Journal | 2008年 / 137卷 / 02期

关键词：

Gas hold-up is one of the most important hydrodynamic parameters involved in the design; development; scale-up and troubleshooting of multiphase systems. Gamma ray tomography (GRT) is an extensively used non-destructive and non-invasive technique for the measurement of the gas hold-up profiles in multiphase system such as bubble columns and stirred vessels. The tomographic measurements can be subsequently used for the qualitative as well as quantitative estimation of the performance of multiphase system under given set of operating conditions. The non-destructive technique of grid scanning which forms the basis of GRT was used to analyze the performance of the laboratory scale bubble column as well as industrial scale sectionalized bubble column. The later had a total height of 8.5 m divided into 10 equal sections. The hydrodynamic performance obtained in the form of chordal gas hold-up was shown to be highly influenced as a result of the sparger design altercations. The non-performance of spargers due to the hole blockage was studied in a bubble column of 0.2 m diameter by analyzing the reconstructed gas hold-up profile at two different axial locations. An industrial sectionalized bubble column was also studied to obtain the desired information on the change in gas hold-up in the axial direction as a result of increased over(Ε{lunate}; ¯)G due to intrinsic reaction kinetics giving rise to the formation of additional gas at every stage. © 2007 Elsevier B.V. All rights reserved;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

页码：376 / 385

共 50 条

[1] Gamma ray tomography - An experimental analysis of fractional gas hold-up in bubble columns
Patel, Ashutosh K.
Thorat, Bhaskar N.
CHEMICAL ENGINEERING JOURNAL, 2008, 137 (02) : 376 - 385
[2] Measurement of gas hold-up profiles by gamma ray tomography: Effect of sparger design and height of dispersion in bubble columns
Veera, UP
Joshi, JB
CHEMICAL ENGINEERING RESEARCH & DESIGN, 1999, 77 (A4): : 303 - 317
[3] GAS HOLD-UP IN BUBBLE-COLUMNS
HIKITA, H
ASAI, S
TANIGAWA, K
SEGAWA, K
KITAO, M
CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL, 1980, 20 (01): : 59 - 67
[4] Gamma ray tomography design for the measurement of hold-up profiles in two-phase bubble columns
Veera, UP
CHEMICAL ENGINEERING JOURNAL, 2001, 81 (1-3) : 251 - 260
[5] A gas hold-up model for slurry bubble columns
Singh, Chattarbir
van der Schaaf, John
Kuster, Ben F. M.
Schouten, Jaap C.
AICHE JOURNAL, 2007, 53 (07) : 1687 - 1702
[6] PREDICTIONS OF GAS HOLD-UP IN CIRCULATING BUBBLE COLUMNS.
Nicol, Ross S.
Davidson, John F.
1986, (13):
[7] Gas hold-up profiles in foaming liquids in bubble columns
Veera, UP
Kataria, KL
Joshi, JB
CHEMICAL ENGINEERING JOURNAL, 2001, 84 (03) : 247 - 256
[8] Effect of surfactants on the gas hold-up in circulating bubble columns
Nicol, R.S.
Davidson, J.F.
Chemical Engineering Research and Design, 1988, 66 (02) : 159 - 164
[9] Gas hold-up profiles in foaming liquids in bubble columns
Joshi, J.B. (jbj@udct.ernet.in), 1600, (Elsevier):
[10] Effect of sparger design and height to diameter ratio on fractional gas hold-up in bubble columns
Thorat, BN
Shevade, AV
Bhilegaonkar, KN
Aglawe, RH
Veera, UP
Thakre, SS
Pandit, AB
Sawant, SB
Joshi, JB
CHEMICAL ENGINEERING RESEARCH & DESIGN, 1998, 76 (A7): : 823 - 834

← 1 2 3 4 5 →