Fluidization, Solids Handling, and Processing
- Wen-Ching Yang
This volume, Fluidization, Solids Handling, and Processing, is the first of a series of volumes on "Particle Technology". Particles are important products of chemical process industries spanning the basic and specialty chemicals, agricultural products, pharmaceuticals, paints, dyestuffs and pigments, cement, ceramics, and electronic materials. Solids handling and processing technologies are thus essential to the operation and competitiveness of these industries. Fluidization technology is employed not only in chemical production, it also is applied in coal gasification and combustion for power generation, mineral processing, food processing, soil washing and other related waste treatment, environmental remediation, and resource recovery processes. The FCC (Fluid Catalytic Cracking) technology commonly employed in the modern petroleum refineries is also based on fluidization principles.
Chemical process industries spanning the basic and specialty chemicals, agricultural products, pharmaceuticals, paints, dyestuffs and pigments, cement, ceramics, and electronic materials.
Hardbound, 908 Pages
Published: December 1998
Imprint: William Andrew
- 1. Fluidized Bed Scale-up 1.0 Introduction 2.0 Reactor Modeling: Bed Diameter Influence 3.0 Influence of Bed Diameter on Hydrodynamics 4.0 Experimental Means to Account for Scale-up: Use of Scale Models 5.0 Simplified Scaling Relationships 6.0 Further Simplifications in the Scaling Relationship 7.0 Design of Scale Models 8.0 Experimental Verification of Scaling Laws for Bubbling Beds 9.0 Applications of Scaling to Commercial Bubbling Fluidized Bed Units 10.0 Hydrodynamic Scaling of Circulating Beds 11.0 Conclusions Acknowledgments Notations References2. Pressure and Temperature Effects in Fluid-Particle Systems 1.0 Introduction Notations References3. Heat Transfer in Fluidized Beds 1.0 Introduction 2.0 Bubbling Dense Fluidization 3.0 Circulating Fast Fluidization Notations References4. Gas Distributor and Plenum Design in Fluidized Beds 1.0 Introduction 2.0 Types of Grids 3.0 Grid Design Criteria 4.0 Particle Attrition at Grids 5.0 Erosion 6.0 Effects of Temperature and Pressure 7.0 Plenum Design 8.0 Design Examples Notations References5. Engineering and Applications of Recirculating and Jetting Fluidized Beds 1.0 Introduction 2.0 Recirculating Fluidized Beds with a Draft Tube 3.0 Jetting Fluidized Beds Notations References6. Fluidized Bed Coating and Granulation 1.0 Introduction 2.0 Coating of Particles in Fluidized Beds 3.0 Granulation of Fine Powders in Fluidized Beds Acknowledgment Notations References7. Attrition in Fluidized Beds and Pneumatic Conveying Lines 1.0 Introduction 2.0 Factors Affecting Attrition 3.0 Assessment of Attrition 4.0 Attrition Tests 5.0 Attrition in Fluidized Bed Systems 6.0 Attrition in Pneumatic Conveying Lines Notations References8. Bubbleless Fluidization 1.0 Introduction 2.0 Fluidized Leaching and Washing 3.0 Bubbleless Gas/Solid Contacting 4.0 Dilute Raining Fluidization 5.0 Fast Fluidization 6.0 Shallow Fluid Beds 7.0 Fluidization with No Net Fluid Flow 8.0 Particles Which Qualify for Bubbleless Operation 9.0 Why Bubbling and Not Particulate Fluidization 10.0 Epilogue Notations References9. Industrial Applications of Three-Phase Fluidization Systems 1.0 Introduction 2.0 Smelting Reduction 3.0 Paper Processing 4.0 Chemical Processing 5.0 Biological Applications of Three-Phase Fluidization Acknowledgment Notations References10. Dense Phase Conveying 1.0 Introduction 2.0 Advantages of Dense Phase Conveying 3.0 Basic Physics 4.0 Pulsed Piston Flows 5.0 Vertical Flow Systems 6.0 Boosters Notations References11. Design Considerations of Long-Distance Pneumatic Transport and Pipe Branching 1.0 Introduction 2.0 Long-Distance Pneumatic Conveying 3.0 Pipe Branching Notations References12. Cyclone Design 1.0 Introduction 2.0 Required Design Data 3.0 Correlating Fractional Collection Efficiency 4.0 Effect of Solids Loading 5.0 Cyclone Length 6.0 Cones, Dust Hoppers and Erosion 7.0 Cyclone Inlet and Outlet Configurations 8.0 The Coupling Effect 9.0 Pressure Drop 10.0 Special Cases 11.0 Bed Particle Size Distribution and Cyclone Design 12.0 Centrifugal Versus Centripetal Cut Point Particle Size 13.0 Cyclone Design Examples 14.0 Alternate Approach to Solving Example B 15.0 Alternate Approach to Solving Example C 16.0 Dipleg Sizing and Cyclone Pressure Balance Notations References13. Electrostatics and Dust Explosions in Powder Handling 1.0 Introduction 2.0 Charging of Solid Particles 3.0 Fluidized Bed Electrification 4.0 ESD Dust Ignition Hazards 5.0 ESD Hazards in Fluidized Bed Systems 6.0 Conclusion Acknowledgment References Index