Biomass Gasification, Pyrolysis and Torrefaction - 2nd Edition - ISBN: 9780123964885, 9780123965431

Biomass Gasification, Pyrolysis and Torrefaction

2nd Edition

Practical Design and Theory

eBook ISBN: 9780123965431
Hardcover ISBN: 9780123964885
Imprint: Academic Press
Published Date: 30th July 2013
Page Count: 548
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Biomass is the most widely used non-fossil fuel in the world. Biomass resources show a considerable potential in the long-term given the increasing proliferation of dedicated energy crops for biofuels. The second edition of Biomass Gasification and Pyrolysis is enhanced with new topics, such as torrefaction and cofiring, making it a versatile resource that not only explains the basic principles of energy conversion systems, but also provides valuable insight into the design of biomass conversion systems. This book will allow professionals, such as engineers, scientists, and operating personnel of biomass gasification, pyrolysis or torrefaction plants, to gain a better comprehension of the basics of biomass conversion. The author provides many worked out design problems, step-by-step design procedures and real data on commercially operating systems. With a dedicated focus on the design, analysis, and operational aspects of biomass gasification, pyrolysis, and torrefaction, Biomass Gasification, Pyrolysis and TorrefactionSecond Edition offers comprehensive coverage of biomass in its gas, liquid, and solid states in a single easy-to-access source.

Key Features

  • Contains new and updated step-by-step process flow diagrams, design data and conversion charts, and numerical examples with solutions
  • Includes chapters dedicated to evolving torrefaction technologies, practicing option of biomass cofiring, and biomass conversion economics
  • Expanded coverage of syngas and other Fischer-Tropsch alternatives
  • Spotlights advanced processes such as supercritical water gasification and torrefaction of biomass.
  • Provides available research results in an easy-to-use design methodology


Biomass professionals and engineers; mechanical engineers, renewable energy engineers, chemical engineers, chemists and material scientists, agricultural and food scientists

Table of Contents




About the Author

Chapter 1. Introduction

1.1 Biomass and its Products

1.2 Biomass Conversion

1.3 Motivation for Biomass Conversion

1.4 Historical Background

1.5 Commercial Attraction of Gasification

1.6 Brief Description of Some Biomass Conversion Processes

Symbols and Nomenclature

Chapter 2. Economic Issues of Biomass Energy Conversion

2.1 Introduction

2.2 Biomass Availability and Products

2.3 Biomass Conversion Process Plant Equipment and Cost

2.4 Financial Analysis

Symbols and Nomenclature

Chapter 3. Biomass Characteristics

3.1 Introduction

3.2 What is Biomass?

3.3 Structure of Biomass

3.4 General Classification of Fuels

3.5 Properties of Biomass

3.6 Composition of Biomass

Symbols and Nomenclature

Chapter 4. Torrefaction

4.1 Introduction

4.2 What is Torrefaction?

4.3 Carbonization

4.4 Torrefaction Process

4.5 Degree of Torrefaction

4.6 Physical Properties of Torrefied Biomass

4.7 Torrefaction Technologies

4.8 Design Methods

Appendix Mass and Energy Balance of Torrefier

Mass Balance

Energy Balance

Chapter 5. Pyrolysis

5.1 Introduction

5.2 Pyrolysis

5.3 Pyrolysis Product Yield

5.4 Pyrolysis Kinetics

5.5 Heat Transfer in a Pyrolyzer

5.6 Pyrolyzer Types

5.7 Pyrolyzer Design Considerations

5.8 Biochar

Symbols and Nomenclature

Chapter 6. Tar Production and Destruction

6.1 Introduction

6.2 Tar

6.3 Tar Reduction

Chapter 7. Gasification Theory

7.1 Introduction

7.2 Gasification Reactions and Steps

7.3 The Gasification Process

7.4 Kinetics of Gasification

7.5 Gasification Models

7.6 Kinetic Model Applications

Symbols and Nomenclature

Chapter 8. Design of Biomass Gasifiers

8.1 Introduction

8.2 Fixed-Bed/Moving-Bed Gasifiers

8.3 Fluidized-Bed Gasifiers

8.4 Entrained-Flow Gasifiers

8.5 Plasma Gasification

8.6 Process Design

8.7 Product Gas Prediction

8.8 Gasifier Sizing

8.9 Entrained-Flow Gasifier Design

8.10 Auxiliary Items

8.11 Design Optimization

8.12 Performance and Operating Issues

Symbols and nomenclature

Chapter 9. Hydrothermal Gasification of Biomass

9.1 Introduction

9.2 Supercritical Water

9.3 Biomass Conversion in SCW

9.4 Effect of Operating Parameters on SCW Gasification

9.5 Application of Biomass Conversion in SCWG

9.6 Reaction Kinetics

9.7 Reactor Design

9.8 Corrosion

9.9 Energy Conversion Efficiency

9.10 Major Challenges

Symbols and Nomenclature

Chapter 10. Biomass Cofiring and Torrefaction

10.1 Introduction

10.2 Benefits and Shortcomings of Biomass Cofiring

10.3 Emission Reduction Through Biomass Cofiring

10.4 Carbon Capture and Storage (CCS) versus Biomass Firing

10.5 Cofiring Options

10.6 Operating Problems of Biomass Cofiring

10.7 Cofiring with Torrefied Wood

Chapter 11. Production of Synthetic Fuels and Chemicals from Biomass

11.1 Introduction

11.2 Syngas

11.3 Bio-Oil production

11.4 Conversion of Syngas into Chemicals

11.5 Transport Fuels from Biomass

Chapter 12. Biomass Handling

12.1 Introduction

12.2 Design of a Biomass Energy System

12.3 Biomass-Handling System

12.4 Biomass Feeders

12.5 Cost of Biomass-Handling System

Symbols and Nomenclature

Chapter 13. Analytical Techniques

13.1 Composition of Biomass

13.2 Heating Value

13.3 Differential Scanning Calorimetry

13.4 Reactivity Measurements

13.5 Pyrolysis-Gas Chromatography/Mass Spectrometry

Appendix A. Definition of Biomass

Appendix B. Physical Constants and Unit Conversions

B1 Physical Constants

B2 Summary of Common Conversion Units

Appendix C. Selected Design Data Tables





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© Academic Press 2013
Academic Press
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"In a world that relies on biomass for its energy needs more and more with each year,… this book fills a definite need for both policy planners and renewable energy specialists…This is a second edition with new material including torrefaction techniques, spotlighting advanced processes and with an expanded reference section on research results, a glossary and many useful, detailed diagrams and flow-charts.", February 2014

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