Page 18 - Introduction to chemical reaction engineering and kinetics

xviii Contents

23.2.3 Elutriation and Terminal Velocity (u,) 577
umf
23.2.4 Comparison of and u, 578
23.3 Hydrodynamic Models of Fluidization 579
23.3.1 Two-Region Model (Class (1)) 579
23.3.2 Kunii-Levenspiel (KL) Bubbling-Bed Model (Class (2)) 580
23.4 Fluidized-Bed Reactor Models 584
23.4.1 KL Model for Fine Particles 584
23.4.2 KL Model for Intermediate-Size Particles 592
23.4.3 Model for Large Particles 595
23.4.4 Reaction in Freeboard and Distributor Regions 595
23.5 Problems for CChapter 23 596

24 l REACTORS FOR FLUID-FLUID REACTIONS 599
24.1 Types of Reactions 599
24.1.1 Separation-Process Point of View 599
24.1.2 Reaction-Process Point of View 599
24.2 Types of Reactors 600
24.2.1 Tower or Column Reactors 600
24.2.2 Tank Reactors 602
24.3 Choice of Tower or Tank Reactor 602
24.4 Tower Reactors 603
24.4.1 Packed-Tower Reactors 603
24.4.2 Bubble-Column Reactors 608
24.5 Tank Reactors 614
24.5.1 Continuity Equations for Tank Reactors 614
24.5.2 Correlations for Design Parameters for Tank Reactors 615
24.6 Trickle-Bed Reactor: Three-Phase Reactions 618
24.7 Problems for Chapter 24 619

APPENDIX A 623
A.1 Common Conversion Factors for Non-S1 Units to SI Units 623
A.2 Values of Physicochemical Constants 623
A.3 Standard SI Prefixes 624

APPENDIX B: BIBLIOGRAPHY 625
B.l Books on Chemical Reactors 625
B.2 Books on Chemical Kinetics and Catalysis 626

APPENDIX C: ANSWERS TO SELECTED PROBLEMS 627

APPENDIX D: USE OF E-Z SOLVE FOR EQUATION SOLVING AND
PARAMETER ESTIMATION 635

NOMENCLATURE 643

REFERENCES 652

INDEXES 657