Fluidized bed technology : principles and applications / J.R. Howard

Includes bibliographies and index

Introduction: Processes involving contact between solid particles and a fluid. Packed (or fixed) beds. Fluidized beds. Treatment of the subject in this book. References. Particles and fluidization: Physical properties of solid particles. Classification of particles according to fluidization characteristics. Pressure drop across packed beds. Minimum fluidizing velocity and its determination. Two-phase theory of fluidization bubbles and fluidization regimes. Mixing, elutriation and transport of solids. References. Fluidized bed heat transfer: Modes of heat transfer. Heat transfer in beds of particles. Estimation of bed-to-surface heat transfer coefficients. Heat transfer between the bed, distributor, containing walls, immersed tubes or components. Heat transfer to surfaces located above the bed free surface. Concluding remarks. References. Design of simple fluidized beds: Introduction. Estimation of bed dimensions and fluidizing velocity. Transport disengaging height. Distributors. Heat removal from fluidized beds. Optimum size of a fluidized bed reactor. Concluding remarks. References. Fluidized bed combustion: Introduction. Combustion systems for solid fuels generally. Fluidized bed combustion of solid fuels. Size of fluidized bed combustion systems. Efficiency of fluidized bed combustion equipment. Combustion of fuel particles in a fluidized bed. Distinction between boilers and furnaces. Methods of starting up. Circulating or "fast" fluidized bed combustion systems. Control or emissions. Concluding remarks. Closure: Introduction. Gasifiers. Dryers. Metallurgical heat treatment furnaces. Solids transport systems. Flue gas desulphurization. Fluidized bed catalytic cracking. Design practice and scale-up.