1;Foreword by Prof. Górak, Technical University of Dortmund;4 2;Foreword by Prof. Dr. Ing. A. Mersmann, TechnicalUniversity of Munich;6 3;Preface;8 4;Summary;11 5;Structure;12 6;Acknowledgments;14 7;Contents;15 8;Part 1 Principles of the Fluid Dynamic Design of Packed Columns for Gas/Liquid Systems;18 8.1;Formula Variables, Latin Letters;19 8.2;Formula Variables, Greek Letters;23 8.3;Dimensionless Numbers;24 8.4;Indices;25 8.5;Mathematical Operator Symbols;25 8.6;Abbreviations;25 8.7;Material Designation;26 9;1 Introduction;27 9.1;1.1 General Information on Packed Columns;27 9.2;1.2 Development of Packed Columns and Their Significance in Rectification and Absorption Technology;30 9.3;1.3 Brief Overview of Existing Monographs and/or Complex Reviews on Packed Column Design;33 9.4;1.4 Conclusion Chapter 1;37 9.5;References Chapter 1;37 10;2 Two-Phase Flow and Operating Range;40 10.1;2.1 Hydraulic Processes in Packed Columns;40 10.2;2.2 Flooding Point;44 10.2.1;2.2.1 Flooding Mechanisms;44 10.2.2;2.2.2 Droplet Formation in Packed Columns;46 10.2.2.1;Droplet Formation;46 10.2.2.2;Droplet Entrainment;48 10.2.2.3;Estimating the Lower Limit, Which Allows Droplet Formation from Films and Runlets in Packed Columns;48 10.2.3;2.2.3 Literature Overview -- Status of Knowledge;49 10.2.3.1;Conclusions Paragraph 2.2.3 -- Literature Overview;56 10.2.4;2.2.4 New Model of Suspended Bed of Droplets (SBD) for Determining Gas Velocity u V,Fl at Flooding Point;59 10.2.4.1;2.2.4.1 Effective Falling Velocity of a Single Droplet in the Packing u T ;63 10.2.4.2;2.2.4.2 Droplet Size and Range of Droplet Movement;67 10.2.4.3;2.2.4.3 Analogy Between the Falling Process of Particles in Fluidised Beds and the Droplet Fall in Random Packings;69 10.2.4.4;2.2.4.4 Evaluation of Experimental Results for the Range of Low and Moderate Phase Flow Ratios 0 0 at Flooding Point;75 10.2.4.5;2.2.4.5 Influence of Packing Size on Droplet Velocity u 0 ;82 10.2.4.6;2.2.4.6 Deriving the Final Equation for Gas Velocity at Flooding Point u V,Fl ;84 10.2.4.7;2.2.4.6 Influence of the Flow Channel Angle 0 on the Gas Velocity at the Flooding Point u V,Fl ;90 10.2.4.8;2.2.4.7 Comparing Experimental Flooding Point Data and SBD Model Acc. to Eq. ( 2-67 );92 10.2.4.9;2.2.4.7 Evaluation of Experimental Flooding Point Data for the Range of Vacuum Rectification and Normal Pressure Range;92 10.2.4.10;2.2.4.7 Evaluation of Experimental Flooding Point Data for the Pressure Range;99 10.2.4.11;2.2.4.8 New Dimensionless Correlation for Gas Velocity at Flooding Point Based on SBD Model;100 10.2.4.12;2.2.4.9 Evaluation of Experimental Data Using Mersmann0s Film Model [ 3 ];102 10.2.4.13;2.2.4.10 New Equation for Calculating Individual Droplet Velocity u T ;103 10.2.5;2.2.5 Conclusions Chapter 2.2;103 10.3;2.3 Determining Column Diameter;108 10.4;2.4 Lower Loading Line;108 10.4.1;2.4.1 Conclusions Section 2.4 ;109 10.4.1.1;List of Numerical Examples '' Chapter 2 ''Flooding Point'';110 10.4.1.2;Numerical Example 2.1 0 Sections 2.2 .4 and 2.3;110 10.4.1.3;Solution ;111 10.4.1.4;Numerical Example 2.2 -- Chapter 2;114 10.4.1.5;Solution ;114 10.4.1.6;Example 2.3 -- Chapter 2;116 10.4.1.7;Solution;116 10.4.1.8;Numerical Example 2.4 -- Chapter 2;118 10.4.1.9;Solution;119 10.4.1.10;Note;120 10.4.1.11;Numerical Example 2.5 -- Chapter 2;121 10.4.1.12;Solution ;121 10.4.1.13;Note ;124 10.5;2.5 Annex Chapter 2;125 10.5.1;2.4.1 Flood Load Diagrams for Various Random and Structured Packings;125 10.6;References Chapter 2;133 11;3 Pressure Drop of Dry Packed Columns;137 11.1;3.1 Introduction;137 11.2;3.2 Law of Resistance for Single-Phase Flow in Packed Columns;137 11.2.1;Deriving the Equation;137 11.2.2;3.2.1 Determining the Resistance Coefficient for Pall Rings;141 11.2.3;3.2.2 Determining the Resistance Coefficient for Other Random Packings;145 11.2.4;3.2.3 Determining the Resistance Coefficient for Structured Packings;147 11.2.4.1;Influence o