Reactive Distillation Design and Control

by Luyben, William L.; Yu, Cheng-Ching

• ISBN13: 9780470226124
• ISBN10: 0470226129
• Edition: 1st
• Format: Hardcover
• Copyright: 2008-10-24
• Publisher: Wiley-AIChE

Summary

Reactive distillation is an economical and environmentally friendly procedure that combines distillation and chemical reaction into a single step. To address the increasing importance of reactive distillation in the petroleum and chemical industries, this book deals with the design of reactive distillation columns and their control systems in an integrated manner.

Author Biography

William L. Luyben, PHD, is Professor of Chemical Engineering at Lehigh University. In addition to forty years of teaching, Dr. Luyben spent nine years as an engineer with Exxon and DuPont. He has written nine books and more than 200 papers. He was the 2004 recipient of the Computing Practice Award from the CAST Division of the AIChE and was elected in 2005 to the Process Automation Hall of Fame. CHENG-CHING YU, PHD, has spent sixteen years as a Professor at National Taiwan University of Science and Technology and four years at National Taiwan University. He has published over 100 technical papers in the areas of plant-wide process control, reactive distillation, control of microelectronic processes, and modeling of fuel cell systems.

Table of Contents

Introduction

History

Basics of Reactive Distillation

Neat Operation versus Excess Reactant

Limitations

Scope

Computational Methods

References

Steady-State Design Of Ideal Quaternary System

Parameter Effects

Effect of Holdup on Reactive Trays

Effect of Number of Reactive Trays

Effect of Pressure

Effect of Chemical Equilibrium Constant

Effect of Relative Volatilities

Effect of Number of Stripping and Rectifying Trays

Effect of Reactant Feed Location

Conclusion

Economic Comparison of Reactive Distillation with a Conventional Process

Conventional Multi-Unit Process

Reactive Distillation Design

Results for Different Chemical Equilibrium Constants

Results for Temperature-Dependent Relative Volatilities

Conclusion

Neat Operation versus Using Excess Reactant

Introduction

Neat Reactive Column

Two-Column System with Excess B

Two-Column System with 20 0.000000E+00xcess A

Economic Comparison

Conclusion

Steady-State Design Of Other Ideal Systems

Ternary Reactive Distillation Systems

Ternary System without Inerts

Ternary System with Inerts

Conclusion

Ternary Decomposition Reaction

Intermediate Boiling Reactant

Heavy Key Reactant with Two Column Configuration

Heavy Key Reactant with One Column Configuration

Conclusion

Steady-State Design Of Real Chemical Systems

Steady-State Design for Acetic Acid Esterification

Reaction Kinetics and Phase Equilibrium

Process Flowsheets

Steady-State Design

Process Characteristics

Discussion

Conclusion

Design of TAME Reactive Distillation Systems

Chemical Kinetics and Phase Equilibrium

Component Balances

Effect of Parameters on Reactive Column

Pressure-Swing Methanol Separation Section

Extractive Distillation Methanol Separation Section

Economic Comparison

Conclusion

Design of MTBE and ETBE Reactive Distillation Columns

MTBE Process

ETBE Process

Conclusion

Control Of Ideal Systems

Control of Quaternary Reactive Distillation Columns

Introduction

Steady-State Design

Control Structures

Selection of Control Tray Location

Closedloop Performance

Using More Reactive Trays

Increasing Holdup on Reactive Trays

Rangeability

Conclusion

Control of Excess-Reactant System

Control Degrees of Freedom

Single Reactive Column Control Structures

Control of Two-Column System

Conclusion

Control of Ternary Reactive Distillation Columns

Ternary System without Inerts

Ternary System with Inerts

Ternary Aa??B+C System: Intermediate Boiling Reactant

Ternary Aa??B+C System: Heavy Reactant with Two-Column Configuration

Ternary Aa??B+C System: Heavy Reactant with Single Column

Control Of Real Systems

Control of MeAc/ EtAc/IPAc/BuAc/AmAc Systems

Process Characteristic

Control Structure Design

Extension to Composition Control

Conclusion

Control of TAME Plantwide Process

Process Studied

Control Structure

Results

Conclusion

Chapter

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