Gas-Solid Reactions describes gas-solid reaction systems, focusing on the four phenomena-external mass transfer, pore diffusion, adsorption/desorption, and chemical reaction.

This book consists of eight chapters. After the introduction provided in Chapter 1, the basic components of gas-solid reactions are reviewed in Chapter 2. Chapter 3 describes the reactions of individual nonporous solid particles, while Chapter 4 elaborates the reaction of single porous particles. Solid-solid reactions proceeding through gaseous intermediates are considered in Chapter 5. Chapter 6 deals with the experimental approaches to the study of gas-solid reaction systems. How information on single-particle behavior may be used for the design of multiparticle, large-scale assemblies, and packed- and fluidized-bed reaction systems is deliberated in Chapter 7. The last chapter covers the specific gas-solid reaction systems, including some statistical indices indicating the economic importance of the systems and processes it's based on.

This publication is recommended for practicing engineers engaged in process research, development, and design in the many fields where gas-solid reactions are important.

Contenu

Preface
Acknowledgments
Chapter 1 Introduction
Chapter 2 The Elements of Gas-Solid Reaction Systems Involving Single Particles
2.1 Introduction
2.2 Mass Transfer between Single Particles and a Moving Gas Stream
2.3 Diffusion of the Gaseous Reactants and Products through the Pores of a Solid Matrix
2.4 Adsorption and Chemical Reaction
2.5 Heat Transfer
2.6 Structural Changes in Gas-Solid Reactions
2.7 Concluding Remarks
Notation
References
Chapter 3 Reactions of Nonporous Solids
3.1 Introduction
3.2 Shrinking Nonporous Particles
3.3 Systems Displaying a Shrinking Unreacted Core
3.4 Effect of Reaction Order on Gas-Solid Reactions
3.5 Gas-Solid Reactions Combined with Solid State Diffusion
3.6 Nonisothermal Shrinking Unreacted-Core Systems
3.7 The Effect of Structural Changes on Reaction
3.8 Concluding Remarks
Notation
References
Chapter 4 Reactions of Porous Solids
4.1 Introduction
4.2 Complete Gasification of Porous Solids
4.3 Porous Solids of Unchanging Overall Sizes
4.4 Concluding Remarks
Notation
References
Chapter 5 Reactions between Solids Proceeding through Gaseous Intermediates
5.1 Introduction
5.2 The Reduction of Metal Oxides with Carbon
5.3 Roasting Operations
5.4 Theoretical Analysis of Solid-Solid Reactions Proceeding through Gaseous Intermediates: Reaction Rates Controlled by Chemical Kinetics
5.5 Concluding Remarks
Notation
References
Chapter 6 Experimental Techniques for the Study of Gas-Solid Reactions
6.1 Introduction
6.2 Preparation of Solid Agglomerates
6.3 Measurement of the Reaction Rate
6.4 Characterization of the Solid Structure
6.5 Measurement of Diffusion Coefficients
6.6 The Design of Experimental Studies in Gas-Solid Reaction Systems
Notation
References
Chapter 7 Gas-Solid Reactions in Multiparticle Systems
7.1 Introduction
7.2 Some Properties of Continuous Flow Systems
7.3 Fixed Bed Systems
7.4 Formulation for Gas-Solid Reactions in Multiparticle Systems
7.5 Fluidization
7.6 Gas-Solid Contacting in Kilns, Moving Beds, and Cyclones
7.7 Reactors with a Distribution of Solid Particle Size
7.8 Concluding Remarks
Notation
References
Chapter 8 Gas-Solid Reactions of Industrial Importance
8.1 Introduction
8.2 Iron Oxide Reduction
8.3 The Roasting of Sulfides
8.4 The Absorption of SO2 by Solids
8.5 Combustion and Gasification of Coal
8.6 Incineration of Solid Waste
8.7 Concluding Remarks
References
Suggested Reading
Index