Practical Heat Transfer

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CHAPTER 5 - REBOILERS FOR DISTILLATION COLUMNS

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5.1 INTRODUCTION

5.2 SELECTION OF REBOILER TYPE

5.2.1 General Considerations

5.2.2 Separation Efficiency

5.3 SUMMARY OF BOILER TYPES AVAILABLE

5.3.1 Direct Vapour Injection

5.3.2 External Generation of Vapour

5.3.3 Thermosyphon Reboilers

5.3.3.1 Vertical Thermosyphon Reboiler.

5.3.3.2 Horizontal Thermosyphon Reboiler

5.3.4 Forced Circulation Boiler

5.3.5 Suppressed Vaporisation Boiler

5.3.6 Kettle Reboiler

5.3.7 Bayonet Tube Vaporiser

5.3.8 Internal Boiler

5.4 THE DESIGN AND LAYOUT OF VERTICAL THERMOSYPHON REBOILERS

5.4.1 The Design Problem

5.4.2 General Considerations

5.4.2.1 Heating Medium Temperature

5.4.2.2 Fouling Resistance

5.4.3 Design Parameters

5.4.3.1 Overall Arrangement and Specifications

5.4.3.2 Geometry Elements

5.4.4 Analysis of the Program Results

5.4.5 Adjustments to design

5.4.6 Operating Range

5.4.7 Control

5.4.7.1 Control of condensing heating medium pressure

5.4.7.2 Control of the condensate level

5.4.7.3 Control of sensible fluid flow rate

5.4.8 Layout

5.4.8.1 Factors influencing design

5.4.8.2 A suggested standard layout

APPENDIX A5 ESTIMATION OF FOULING RESISTANCE FROM PLANT DATA.

A5.1 Manual Iteration

A5.2 Available Duty Method

REFERENCES FOR CHAPTER 5

ISBN 1-56700-216-1