Fluidized‐Bed Reactors1A list of abbreviations/acronyms used in the text is provided at the end of the chapter.

Abstract The sections in this article are Introduction The Fluidization Principle Forms of Fluidized Beds Advantages and Disadvantages of the Fluidized‐Bed Reactor Fluid‐Mechanical Principles Minimum Fluidization Velocity Fluidization Properties of Typical Bed Solids Gas Distribution Gas Jets in Fluidized Beds Bubble Development Elutriation Circulating Fluidized Beds Catalyst Attrition Gas Mixing in Fluidized‐Bed Reactors Gas Mixing in Bubbling Fluidized Beds Gas Mixing in Circulating Fluidized Beds Gas–Solid Separation Injection of Liquid Reactants into Fluidized Beds Industrial Applications Heterogeneous Catalytic Gas‐Phase Reactions Polymerization of Alkenes Modeling of Fluidized‐Bed Reactors Bubbling Fluidized‐Bed Reactors Circulating Fluidized‐Bed Reactors New Developments in Fluidized‐Bed Reactor Modeling Scale‐Up Bed Diameter Grid Design Internals Catalyst Particle‐Size Distribution Secondary Reactions in the Freeboard Catalyst Attrition Other Factors Conclusions List of Symbols