理想和无气泡流态化 本书特色

When fluidization was first employed industrially， e．g．，in the Winkler gasifjer，we had only the bubbling nuidized bed as shown in the middle diagram 0f the figure，in which gas bypasses as bubbles，thUS leading t0 poor SOlid—gas contact and incurring large pressure drop．What is ideal is the high dispersion Of SOlids shown as the background of the b00k jacket．Short 0f SUCh an ideal state，we may resort t0 suppressing bubbles by the use Of shallOw fluidized bed as shown on the lefthand side diagram achieved through redUCing the SOlid content Of the fludized bed．or the fast nuidized bed with continuous recyc“ng 0f SO“ds t0 the bOttom Of the bed，as shown on the righthand side diagram．All these diagrams 0f nuidization were generated through computer mode“ng by Professor Wei Ge，and from hOSts 0fthese diagrams，four were selected by Xue Bai， Jianxing Lu and Ying Ren tO portray the principal thesis nfthis book

理想和无气泡流态化 目录

Chapter 1 THE FLUIDIZED STATE
1.1 The Fluidized State and How It Is Achieved
1.2 Nature of Hydrodynamic Suspension
1.3 Particle-Particle Forces
1.4 Species of Fluidization
1.5 Regimization of the Fluidized State
Chapter 2 IDEALIZATION OF THE FLUIDIZING PROCESS:Empirical Deductions from L/S Systems
Chapter 3 GENERALIZED FLUIDIZATION
3.1 Steady-State Motion
3.2 Moving Bed
3.3 Accelerative Motion
3.4 Polydisperse Systems
3.5 Computer Software
Chapter 4 FLUIDIZED LEACHING AND WASHING
4.1 Characteristics
4.2 Uniform Particles
4.3 Mixed Particles
4.4 Experimental Findings
4.5 Staging
4.6 Rate Measurement for Solids Leaching and Washing
Chapter 5 SOLIDS MIXING AND SEGREGATION
5.1 Phase Juxtaposition
5.2 Operation Shifts
5.3 Reversal Points
5.4 Degree of Segregation
5.5 Mixing-Segregation Equilibrium
5.6 Generalized Fluidization of Polydisperse Systems
Chapter 6 CONICAL FLUIDIZED BEDS
6.1 Phenomenological Description and Physical Modeling
6.2 The Basic Parameters
6.3 The Fully Fluidized State
6.4 With Hyperfluidized Fixed Bed
6.5 Ranges for Conical Fluidized Bed Operation
6.6 Charting Conical Fluidized Bed Operation and Experimenta Verification
6.7 Instability
Chapter 7 APPLICATION OF THE MOVING BED
7.1 Moving Bed Uptransport with Compressible Media
7.2 The Pneumatically Controlled Downcomer
Chapter 8 BUBBLELESS GAS/SOLID CONTACTING
8.1 Bubbling Fluidization and G/S Contacting Efficiency
8.2 Species of Bubbleless G/S Contacting
Chapter 9 SYSTEMS WITH DILUTE RAINING PARTICLES
9.1 Raining-Particles Heat Exchanger
9.2 Polydisperse Particles
9.3 Experimental Verification
9.4 Baffling and Particles Distribution
9.5 Countercurrent Staging of Cocurrent Systems
9.6 Pilot Plant Demonstration
Chapter 10 VOIDAGE DISTRIBUTION IN FAST FLUIDIZATION
10.1 Modeling Longitudinal Voidage Distribution
10.2 Evaluation of Parameters
10.3 Computing Voidage Distribution
10.4 Regime Diagram
10.5 Generalized Fluidization of Nonideal Systems
10.6 Radial Voidage Distribution
Chapter 11 SHALLOW FLUIDIZED BED
11.1 Relevant Work on Distributor
11.2 Fluid Flow above Distributor
1 1.3 Particle Behavior above Distributor
11.4 Assessment of Distributor Performance
11.5 Particle-Gas Transfer in Shallow Fluid Bed
11.6 Activated Solids Shallow Fluid Bed Heat Exchanger
11.7 Cocurrent Multi-Stage Shallow Fluid Bed
11.8 The co-MSFB as a Chemical Reactor
Chapter 12 FLUIDIZATION WITH NO NET FLUID FLOW
12.1 Levitation of Discrete Particles
12.2 Semi-Fluidization through Oscillatory Flow
12.3 Application to Pseudo Solid-Solid Reaction
Chapter 13 A COHERENT ANALYSIS FOR L/S AND G/S SYSTEMS
13.1 From Phenomena through Hypothesis to Modeling
13．2 The Multi-Scale Energy-Minimization Model
13．3 Charting StatUS Parameters
13．4 Reconciling L／S and G／S Systems
13．5 Regimes of Fluidization
Chapter 14 PoWDER ASSESSMENT
14．1 Geldart’s Classification
14．2 Powder Characterization by Bed Collapsing
14．3 Modeling the Three-Stage Bed Collapsing Process
14．4 Instrument for Automatic Surface Tracking and Data Processing

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