Combustion and Gasification in Fluidized Beds explains how fluidized bed equipment works and how to use the basic principles of thermodynamics and fluid mechanics in design.

Features:

• Offers practical, comprehensive coverage of the design, analysis, and operation aspects of fluidized beds
• Provides many worked out design problems, step-by-step design procedures, and real data on commercially operating systems
• Supplies valuable design data such as properties of coal, specific heat of gases, and design velocities
• Covers both bubbling and circulating fluidized bed boilers and gasifiers
• Contains four valuable appendices that eliminate the need to search for essential information

Contents

Introduction

• Fluidized Bed Equipment
• Features of Fluidized Beds
• Fluidized Bed and Other Clean Coal Options

Hydrodynamics

• Regimes of Fluidization
• Fast Fluidized Bed
• Hydrodynamic Regimes in a CFB
• Hydrodynamic Structure of Fast Beds
• Gas-Solid Mixing
• Scale-Up

Fluidized Bed Gasification

• Types of Gasifiers
• Theory
• Effect of Operating Parameters on Gasification
• Effect of Feed Properties on Gasification
• Fluidized Bed Gasification
• Examples of Some Fluidized Bed Gasifiers
• Gas Cleaning
• Design Methods
• Modeling of Fluidized Bed Gasification

Combustion

• Stages of Combustion
• Factors Affecting Combustion Efficiency
• Combustion in Bubbling Fluidized Bed Boilers
• Combustion in Circulating Fluidized Bed Boilers
• Biomass Combustion

Emissions

• Air Pollution
• Sulfur Dioxide Emission
• Nitrogen Oxide Emission
• Nitrous Oxide Emission
• Mercury Emission
• Carbon Monoxide Emission
• Carbon Dioxide Emission
• Emission of Trace Organics
• Particulate Emission

Heat Transfer

• Gas-to-Particle Heat Transfer
• Heat Transfer in Circulating Fluidized Beds
• Heat Transfer in Bubbling Fluidized Bed
• Freeboard Heat Transfer in Bubbling Fluidized Beds
• Heat Transfer in Commercial-Size CFB Boilers

Bubbling Fluidized Bed Boiler

• Description of a BFB Boiler
• Features of BFB Boilers
• Thermal Design of Bubbling Fluidized Bed Boilers
• Combustion in Bubbling Fluidized Bed
• Furnace Design
• Start-Up Procedure and Control
• Some Operational Problems and Remedies
• Design of Feed Systems for BFB Bed Boiler

Circulating Fluidized Bed Boiler

• General Arrangement
• Types of CFB Boilers
• Non-CFB Solid Circulation Boilers
• Combustion in a Circulating Fluidized Bed Furnace
• Design of CFB Boilers
• Furnace Design
• Design of Heating Surfaces
• Auxiliary Power Consumption
• Control of CFB Boilers
• Supercritical CFB Boiler

Material Issues

• Material Selection Criteria
• Erosion Potential
• Corrosion Potentials
• Steels Used in Fluidized Bed Boilers
• Refractory and Insulations
• Expansion Joints

Solid Handling Systems for Fluidized Beds

• Solid Handling Systems
• Biomass Handling Systems
• Feed System for Bubbling Beds
• Feed System for Circulating Fluidized Beds
• Design of Pneumatic Transport Lines for Solids

Air Distribution Grate

• Distributor Plates
• Operation of Distributors
• Design Methods
• Practical Considerations

Gas-Solid Separators

• Cyclones
• Impact Separator
• Inertial Separators

Solid Recycle Systems

• Types of Non-mechanical Valves
• Principles of Operation
• Design of Loop-Seal
• Design of L-Valve
• Practical Considerations
• Nomenclature

Index

click here to see books • videos • cd-roms of related interest