声明
摘要
List of abbreviations
Table of contents
List of tables
List of figures
Chapter 1 Introduction and literature review
1．1 Introduction
1．2 Biomass pelletization and pelletizing equipment
1．3 Pre-treatment methods
1．4 Pellet quality and standards
1．5 Combination of biomass pelletization with torrefaction
1．5．1 Process configuration
1．6 Major process parameters for combined pelletization and torrefaction
1．6．1 Major process parameters for pelletization
1．6．2 Pocess variables for torrefaction
1．7 objectives of the research
1．8 Outline of the thesis
Chapter 2 Experimental procedures and analytical techniques
2．1 Material preparation and properties
2．2 Pelletizer and pellet production process
2．3 Characterization of un-torrefied pellets
2．4 Statistical analyses
2．5 Compression models
2．6 Torrefaction and pyrolysis of pellets
2．6．2 Torrefaction and pyrolysis of sewage sludge and furfural residue sludge pellets
2．7 Analytical methods for torrefied and pyrolysed pellets
2．8 Kinetics and statistical analyses
Chapter 3 Pellet production from furfural residue and sawdust
3．1 Physical characteristics of pellets
3．1．1 Effect of pressure and die temperature
3．1．2 Effect of moisture content
3．1．3 Effect of particle size
3．1．4 Effect of binder
3．2 Mechanical characteristics of pellets
3．2．1 Complementary effects of pressure，temperature，moisture and particle size
3．2．2 Durability and dimensional stability of furfural residue peflets
3．3 Energy consumption
3．4 Water resistivity
3．5 Heating value of pellets
3．6 Conclusion
Chapter 4 Co-pelletization of sewage sludge，furfural residue and corn stalk
4．1 Evaluation of compression models for co-pelletization
4．2 Process variables affecting physical and mechanical properties
4．3 Pellet properties and process variables
4．3．1 Influence of die temperature on particle，relaxed and true densities
4．3．2 Influence of mixing ratio
4．4 Effects of moisture content on quality parameters and SEC of SSPs
4．5 Mechanical properties
4．5．1 Strength and hardness
4．6 Energy consumption of SSPs，FRPs，FRSPs，CSPs and CSSPs
4．6．1 Effect of pressure and temperature
4．6．2 Effect of mixing ratio
4．7 Higher heating values of pellets
4．8 Smell in sludge mixed pellets
4．9 Conclusion
Chapter 5 Torrefaction of pellets prepared from furfural residue and sawdust
5．1 Appearance of TOPs
5．2 Proximate and elemental analysis，mass yield and energy yield
5．2．1 Proximate and elemental analyses
5．2．2 Mass yield
5．2．3 Lower heating value and volumetric energy density
5．2．4 Energy yield and energy density ratio
5．3 Torrefaction kinetics
5．4 Mechanical and physical characteristics of TOPs
5．5 Hydrophobicity
5．6 Surface micromorphology of TOPs
5．7 Analysis of crystallinity of TOPs
5．8 Analysis of chemical functional groups of TOPs
5．9 Conclusion
Chapter 6 Torrefaction and pyrolysis of pellet prepared from furfural residue，sewage sludge and mixture
6．1 Yields and pellet chemical compositions
6．1．1 Mass yield and energy yield
6．1．2 Higher heating value and energy density ratio
6．1．3 Elemental analysis of control，torrefied and pyrolysed pellet
6．2 Characteristics of TOPs and pyrolysed pellets
6．2．1 Pellet density
6．2．2 Strength of pellets
6．2．3 Moisture uptake
6．2．4 Methylene blue and iodine adsorption
6．3 Main functional groups of pellets
6．4 Thermogravemetric analysis
6．5 Metallic and non-metallic contents in raw，torrefied and pyrolysed pellets
6．6 Conclusion
Chapter 7 Recommendations
References
Appendix A - Annova and NLR Tables
Acknowledgement
Research Papers
Introduction to Author and Advisor
北京化工大学;
