Multiphase Reactors in Fine Chemistry: Simplifying Design for Students and Practicing Engineers

Here, the basic aspects of multiphase reactions, the importance of transport parameters vis-a-vis kinetics are clearly brought out, backed by a discussion of the principles of similarity in scale-up. The book treats new reactors in depth, in particular the ventury loop reactor and monolithic reactors, while also covering the problems encountered in retrofitting existing reactors for new reaction duties. Very simple yet theoretically sound design procedures are given, which require minimum time but yield reliable results, supplemented by rapid optimization tools in the form of Excel worksheets. A number of solved examples are included for each reactor type presented.

Table of Contents:
INTRODUCTION TO SIMPLIFIED DESIGN PHILOSOPHY MULTIPHASE REACTORS: BASIS OF DESIGN AND SCALE-UP MULTIPHASE REACTORS: TYPES AND CRITERIA FOR SELECTION FOR A GIVEN APPLICATION Reaction Kinetics Vis-a-Vis Mass Transfer Flow Pattern of the Phases Ability to Remove/Add Heat Ability to Handle Solids Operating Conditions Materials of Construction TURBULENCE: BASIC FUNDAMENTALS AND RELEVANCE TO MOST MULTIPHASE REACTORS LAMINAR FLOW: RELEVANCE TO STRUCTURED MULTIPHASE REACTORS PRINCIPLES OF SIMILARITY AND THEIR APPLICATION FOR SCALE-UP OF MULTIPHASE REACTORS Geometric Similarity Mechanical Similarity Thermal Similarity Chemical Similarity MASS TRANSFER IN MULTIPHASE REACTORS: CORRELATIONS Purely Empirical Correlations Using Operating Conditions and Physical Properties Correlations Based on Mechanical Similarity Correlations Based on Hydrodynamic/Turbulence Regime Similarity STIRRED TANK REACTORS Design and Scale-Up Hydrodynamic Regimes in Two-Phase (Gas-Liquid) Stirred Tank Reactors Hydrodynamic Regimes in Three-Phase (Gas-Liquid-Solid) Stirred Tank Reactors Gas Hold-Up Gas-Liquid Mass Transfer Coefficient Solid-Liquid Mass Transfer Coefficient Design of Stirred Tank Reactors with Internal Cooling Coils Solved Example VENTURY LOOP REACTORS Introduction Operational Features Design and Operation Injector Flow regimes in the Different Compartments Solid Suspension Mass Transfer Scale-Up Solved Example GAS INDUCING REACTORS Introduction and Application Areas of Gas Inducing Reactors Mechanism of Gas Induction Classification of Gas Inducing Reactors Hydrodynamics Solved Example TWO- AND THREE-PHASE SPARGED REACTORS Introduction Hydrodynamic Regimes Gas Hold-Up Solid-Liquid Mass Transfer Coefficient Axial Dispersion Solved Example TRICKLE-BED REACTORS Introduction Hydrodynamics Mass Transfer, Residence Time Distribution MONOLITH REACTORS Introduction Hydrodynamics, Stability, Pressure Drop Mass Transfer, Residence Time Distribution Reactor Configurations Monolithic Loop Reactors Microreactors Comparison with Random Reactors

About the Author :
Vishwas G. Pangarkar until recently was Professor and head of the Chemical Engineering Department of the University Institute of Chemical Technology in Mumbai, India and actively engaged as a consultant in the chemical industry since 1974 for both Indian and overseas companies. His research interests include photocatalysis for environmental applications, membrane and adsorptive separations, mass transfer in multiphase reactors and process intensification. He is the (co)author of three books and over 130 professional papers. The only Indian winner of both Herdillia and NOCIL Awards, which are for excellence in such diverse fields as basic research and industrial innovations and indicate the very broad range of Pangarkar's contributions to education and research in chemical engineering and in the entire spectrum of the chemical industry. Jacob A. Moulijn is Professor of Chemical Engineering at Delft University of Technology and Leiden University, The Netherlands. The use of structured reactors for multiphase applications is a major current research topic. He is editor of five books, (co)author of over 500 professional papers and two books, and the holder of several international patents. He was visiting professor, i.e., at the University of Delaware, the Technical University of Wroclav, the Technische Universitat Karlsruhe, the University of Gent, the University of Mumbai and the National University of Singapore. He was CTA for the United Nations in China from 1995 to 2000.