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Hydrodynamics and Mass Transfer in Downflow Slurry Bubble Columns [Hardback]

  • Formāts: Hardback, 244 pages, height x width: 229x152 mm, weight: 603 g, 9 Tables, black and white; 3 Illustrations, color; 32 Illustrations, black and white
  • Izdošanas datums: 13-Aug-2018
  • Izdevniecība: Apple Academic Press Inc.
  • ISBN-10: 1771886730
  • ISBN-13: 9781771886734
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  • Cena: 153,55 €
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Hydrodynamics and Mass Transfer in Downflow Slurry Bubble ColumnsPalielināt
  • Formāts: Hardback, 244 pages, height x width: 229x152 mm, weight: 603 g, 9 Tables, black and white; 3 Illustrations, color; 32 Illustrations, black and white
  • Izdošanas datums: 13-Aug-2018
  • Izdevniecība: Apple Academic Press Inc.
  • ISBN-10: 1771886730
  • ISBN-13: 9781771886734
Citas grāmatas par šo tēmu:
Permanent link: https://www.kriso.lv/db/9781771886734.html
Keywords:

Slurry bubble column reactors are intensively used as a multiphase reactor in the chemical, biochemical, and petrochemical industries for carrying out reactions and mass transfer operations in which a gas, made up of one or several reactive components, comes into contact or reacts with a liquid. This new volume, Hydrodynamics and Mass Transfer in Downflow Slurry Bubble Columns, describes the hydrodynamics of three-phase gas-liquid-solid flow in a downflow slurry bubble column. The efficiency of the downflow gas interacting system is characterized by the self-entrainment of secondary gas. The book covers the gas entrainment phenomena, gas holdup characteristics, pressure drop, gas-liquid mixing characteristics, bubble size distribution, interfacial phenomena, and the mass transfer phenomena in the downflow slurry system. Gas holdup has been analyzed by different models. A model for pressure drop in the system based on mechanical energy balance within the framework of dynamic interaction of the phases has been formulated and described. The model includes the effect of bubble formation and form drag at interface on the pressure drop. Interpretation of mixing behavior has been done by velocity distribution model. The mass transfer phenomena have been enunciated by correlation model within the framework of experimental results. Correlations were also developed to predict the gas entrainment, gas holdup, two-phase friction factor, Sauter mean bubble diameter and specific interfacial area in terms of physical, geometric and dynamic variables of the system. The experimental results of the downward slurry system were compared with other systems and the overall performance of the gas interacting downflow slurry bubble column system has been found to be highly encouraging as a gas-slurry contactor.

This volume will be useful in chemical and biochemical industries, industrial research and development sectors, as well as in advanced education courses in this area. The book will be helpful for further understanding the multiphase behavior in gas interacting multiphase system for research and development. The hydrodynamic and mass transfer characteristics discussed will be useful in the design and installation of the modified slurry bubble column in industry for specific applications.

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List of Abbreviations ix
List of Symbols xi
About the Book xix
Preface xxi
Acknowledgments xxiii
1 Introduction 1(28)
1.1 Introduction
2(1)
1.2 Three-Phase Reactor
2(17)
1.3 Application of a Gas-Interacting Slurry Reactor
19(1)
1.4 Some Other Important Three-Phase Applications
20(1)
1.5 Advantages of a Gas-Interacting Slurry Reactor
21(1)
1.6 Challenges of a Gas-Interacting Slurry Reactor
22(1)
Keywords
22(1)
References
23(6)
2 Gas Distribution 29(34)
2.1 Introduction
30(8)
2.2 Gas Distribution by Entrainment in a Downflow Gas-Interacting Slurry Column Reactor
38(5)
2.3 Characteristics of Liquid Jets
43(4)
2.4 Gas Entrainment Rate
47(3)
2.5 Performance of the Plunging Jets for Gas Entrainment
50(2)
2.6 Model for Estimation of Film-Wise Entrainment by a Liquid Jet
52(3)
2.7 Minimum Jet Velocity for Gas Entrainment
55(1)
2.8 Energy Efficiency of Gas Entrainment
56(2)
Keywords
58(1)
References
58(5)
3 Gas Hold-Up Characteristics 63(38)
3.1 Definition of Gas Hold-Up
64(2)
3.2 Importance of Gas Hold-Up
66(1)
3.3 Method to Estimate the Gas Hold-Up
67(3)
3.4 Estimation of Gas Hold-Up in Downflow Gas-Interacting Slurry Reactor
70(1)
3.5 Effect of Different Variables on Gas Hold-Up in Slurry Bubble Column
71(5)
3.6 Effect of Operating Variables on Gas Hold-Up in a Downflow Gas-Interacting Slurry Reactor
76(2)
3.7 Analysis of Gas Hold-Up
78(18)
Keywords
96(1)
References
96(5)
4 Frictional Pressure Drop 101(40)
4.1 Introduction
102(3)
4.2 Theory of Three-Phase Frictional Pressure Drop
105(1)
4.3 Effects of Operating Variables on Frictional Pressure Drop
106(5)
4.4 Analysis of Frictional Pressure Drop
111(16)
4.5 Friction Factor
127(9)
Keywords
136(1)
References
136(5)
5 Bubble Size Distribution 141(36)
5.1 Introduction
142(2)
5.2 Estimation of Bubble Size
144(2)
5.3 Equivalent Bubble Diameter
146(2)
5.4 Bubble Size Distribution and its Prediction
148(4)
5.5 Maximum Stable Bubble Diameter
152(2)
5.6 Energy Dissipation By Bubble Motion
154(2)
5.7 Analysis of Axial Bubble Size Distribution
156(3)
5.8 Bubble Exchange Model
159(5)
5.9 Other Important Population Balance Models
164(8)
Keywords
172(1)
References
173(4)
6 Dispersion Phenomena 177(26)
6.1 Introduction
178(2)
6.2 Estimation of Intensity of Dispersion
180(1)
6.3 Residence Time Distribution (RTD)
181(3)
6.4 Effect of Different Variables on Dispersion Coefficient
184(5)
6.5 Analysis of the Dispersion by Velocity Distribution Model
189(5)
6.6 Efficiency of the Dispersion
194(6)
Keywords
200(1)
References
200(3)
7 Mass Transfer Phenomena 203(30)
7.1 Introduction
204(1)
7.2 Mechanisms of Mass Transfer in a Gas-Interacting Slurry Reactor
205(4)
7.3 Measurement of Mass Transfer Coefficient
209(8)
7.4 Effect of Variables on Mass Transfer Coefficient
217(7)
7.5 Mass Transfer Efficiency Based on Mixing
224(3)
7.6 Prediction of Mass Transfer Efficiency
227(1)
Keywords
228(1)
References
228(5)
Suggestions for Further Study 233(4)
Index 237
Subrata Kumar Majumder, PhD, is a Professor in the Chemical Engineering Department at the Indian Institute of Technology, Guwahati, India. His research interests include multiphase flow and reactor development, hydrodynamics in multiphase flow, mineral processing, and process intensification and micro-nano bubble science and technology and its applications. He is a recipient of several awards and serves on the editorial boards of several journals. He has authored five book chapters, has presented 27 conference papers, and has published 74 articles in several reputed refereed journals. He has carried out several sponsored and consultancy projects and has done international collaboration. Presently he is working in the field of microbubble science and technology and its applications in mineral beneficiation; removal of arsenic, ammonia, dye, phenolic and pharmaceutical derivatives; and process intensification by developing ejector induced gas-aided extraction process.