Essentials of fluidization. (2020)

• Record Type: Book
• Further Information: Note: John R. Grace, Xiaotao Bi, Naoko Ellis.
• Authors: Grace, John R; Bi, Xiaotao; Ellis, Naoko
• Contents: Preface xix Acknowledgement xxi 1 Introduction, History, and Applications 1 ; John R. Grace 1.1 Definition and Origins 1 1.2 Terminology 2 1.3 Applications 3 1.4 Other Reasons for Studying Fluidized Beds 4 1.5 Sources of Information on Fluidization 8 References 8 Problems 9 2 Properties, Minimum Fluidization, and Geldart Groups 11 ; John R. Grace 2.1 Introduction 11 2.2 Fluid Properties 11 2.3 Individual Particle Properties 12 2.4 Bulk Particle Properties 16 2.5 Minimum Fluidization Velocity 18 2.6 Geldart Powder Classification for Gas Fluidization 24 2.7 Voidage at Minimum Fluidization 27 Solved Problem 28 Notations 28 References 29 Problems 31 3 Liquid Fluidization 33 ; Renzo Di Felice and Alberto Di Renzo 3.1 Introduction 33 3.2 Field of Existence 33 3.3 Overall Behaviour 35 3.4 Superficial Velocity–Voidage Relationship 37 3.5 Particle Segregation and Mixing 40 3.6 Layer Inversion Phenomena 41 3.7 Heat and Mass Transfer 46 3.8 Distributor Design 48 Solved Problems 48 Notations 51 References 52 Problems 53 4 Gas Fluidization Flow Regimes 55 ; Xiaotao Bi 4.1 Onset of Fluidization 55 4.2 Onset of Bubbling Fluidization 55 4.3 Onset of Slugging Fluidization 57 4.4 Onset of Turbulent Fluidization 58 4.5 Termination of Turbulent Fluidization 62 4.6 Fast Fluidization and Circulating Fluidized Bed 62 4.7 Flow Regime Diagram for Gas–Solid Fluidized Beds 64 4.8 Generalized Flow Diagram for Gas–Solid Vertical Transport 65 4.9 Effect of Pressure and Temperature on Flow Regime Transitions 68 Solved Problems 70 Notations 71 References 72 Problems 74 5 Experimental Investigation of Fluidized Bed Systems 75 ; Naoko Ellis 5.1 Introduction 75 5.2 Configuration and Design 76 5.3 Fluidizability and Quality of Fluidization 84 5.4 Instrumentation and Measurements 87 5.5 Operation of Fluidized Beds 93 5.6 Data Analysis 95 Solved Problem 98 Notations 98 References 100 Problems 104 6 Computational Fluid Dynamics and Its Application to Fluidization 109 ; Tingwen Li and Yupeng Xu 6.1 Two-Fluid Model 110 6.2 Discrete Particle Method 115 6.3 Gas–Solid Interaction 119 6.4 Boundary Conditions 122 6.5 Example and Discussion 123 6.6 Conclusion and Perspective 126 Solved Problem 126 Notations 127 References 128 7 Hydrodynamics of Bubbling Fluidization 131 ; John R. Grace 7.1 Introduction 131 7.2 Why Bubbles Form 133 7.3 Analogy Between Bubbles in Fluidized Beds and Bubbles in Liquids 134 7.4 Hydrodynamic Properties of Individual Bubbles 135 7.5 Bubble Interactions and Coalescence 139 7.6 Freely Bubbling Beds 139 7.7 Other Factors Influencing Bubbles in Gas-Fluidized Beds 146 Solved Problem 147 Notations 147 References 148 Problems 152 8 Slug Flow 153 ; John R. Grace 8.1 Introduction 153 8.2 Types of Slug Flow 153 8.3 Analogy Between Slugs in Fluidized Beds and Slugs in Liquids 155 8.4 Experimental Identification of the Slug Flow Regime 155 8.5 Transition to Slug Flow 156 8.6 Properties of Single Slugs 156 8.7 Hydrodynamics of Continuous Slug Flow 158 8.8 Mixing of Solids and Gas in Slugging Beds 159 8.9 Slugging Beds as Chemical Reactors 160 Solved Problem 160 Notations 161 References 161 9 Turbulent Fluidization 163 ; Xiaotao Bi 9.1 Introduction 163 9.2 Flow Structure 165 9.3 Gas and Solids Mixing 168 9.4 Effect of Column Diameter 172 9.5 Effect of Fines Content 173 Solved Problem 173 Notations 175 References 176 Problems 180 10 Entrainment from Bubbling and Turbulent Beds 181 ; Farzam Fotovat 10.1 Introduction 181 10.2 Definitions 182 10.3 Ejection of Particles into the Freeboard 184 10.4 Entrainment Beyond the Transport Disengagement Height 185 10.5 Entrainment from Turbulent Fluidized Beds 190 10.6 Parameters Affecting Entrainment of Solid Particles from Fluidized Beds 191 10.7 Possible Means of Reducing Entrainment 195 Solved Problem 195 Notations 196 References 197 Problems 201 11 Standpipes and Return Systems, Separation Devices, and Feeders 203 ; Ted M. Knowlton and Surya B. Reddy Karri 11.1 Standpipes and Solids Return Systems 203 11.2 Standpipes in Recirculating Solids Systems 212 11.3 Standpipes Used with Nonmechanical Solids Flow Devices 216 11.4 Solids Separation Devices 222 11.5 Solids Flow Control Devices/Feeders 230 Solved Problem 232 Notations 233 References 235 Problems 237 12 Circulating Fluidized Beds 239 ; Chengxiu Wang and Jesse Zhu 12.1 Introduction 239 12.2 Basic Parameters 241 12.3 Axial Profiles of Solids Holdup/Voidage 243 12.4 Radial Profiles of Solids Distribution 246 12.5 The Circulating Turbulent Fluidized Bed 249 12.6 Micro-flow Structure 250 12.7 Gas and Solids Mixing 256 12.8 Reactor Performance of Circulating Fluidized Beds 258 12.9 Effect of Reactor Diameter on CFB Hydrodynamics 261 Notations 262 References 263 Problems 268 13 Operating Challenges 269 ; Poupak Mehrani and Andrew Sowinski 13.1 Electrostatics 269 13.2 Agglomeration 273 13.3 Attrition 274 13.4 Wear 278 Solved Problems 280 Notations 286 References 287 Problem 290 14 Heat and Mass Transfer 291 ; Dening Eric Jia 14.1 Heat Transfer in Fluidized Beds 291 14.2 Mass Transfer in Fluidized Beds 318 Solved Problem 320 Notations 323 References 325 Problem 329 15 Catalytic Fluidized Bed Reactors 333 ; Andrés Mahecha-Botero 15.1 Introduction 333 15.2 Reactor Design Considerations 334 15.3 Reactor Modelling 334 15.4 Fluidized Bed Catalytic Reactor Models 342 15.5 Conclusions 356 Notations 357 References 358 Problems 361 16 Fluidized Beds for Gas–Solid Reactions 363 ; Jaber Shabanian and Jamal Chaouki 16.1 Introduction 363 16.2 Gas–Solid Reactions for a Single Particle 364 16.3 Reactions of Solid Particles Alone 377 16.4 Conversion of Particles Bathed by Uniform Gas Composition in a Dense Gas–Solid Fluidized Bed 378&l
• Edition: 1st
• Publisher Details: Weinheim : Wiley-VCH
• Publication Date: 2020
• Extent: 1 online resource
• Subjects: 660.284292; Fluidization
• Languages: English
• ISBNs: 9783527699490
• Related ISBNs: 9783527699476
• Notes: Note: Description based on CIP data; resource not viewed.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
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