Micro Fluidization

Fundamentals and Applications

1st Edition - May 20, 2023
Authors: Guangwen Xu, Dingrong Bai, Mingyan Liu, Vladimir Zivkovic
Language: English
Paperback ISBN:
9 7 8 - 0 - 4 4 3 - 1 8 7 1 8 - 6
eBook ISBN:
9 7 8 - 0 - 4 4 3 - 1 8 7 1 9 - 3

Micro Fluidization: Fundamentals and Applications provides background and history on micro fluidized bed research and development, summarizes and analyzes the hydrodynamic c… Read more

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Micro Fluidization: Fundamentals and Applications provides background and history on micro fluidized bed research and development, summarizes and analyzes the hydrodynamic characteristics of gas-solid micro fluidized beds, and delves into areas such as research results of delayed onsets of minimum, bubbling and slugging fluidization regimes, as well as of the advanced transitions to turbulent and fast fluidization regimes. Based on these results, the wall effects – the key mechanism resulting in the unique behavior of micro fluidization – are analyzed. Other sections discuss gas and solid mixing characteristics in terms of gas residence time distribution, gas backmixing, and solids mixing.

Final sections focus on presentations of the so-called micro fluidized bed reaction analyzer (MFBRA) – a powerful tool for catalyst screening, process development, optimization of reaction parameters, studies of reaction mechanism and kinetics, among many other purposes. The book describes, in detail, the MFBRA’s system design characteristics, analytic methodologies and various applications in thermochemical and catalytic reaction analysis.

Cover image
Title page
Table of Contents
Copyright
Preface
Future prospects
1 Fundamental research
2 MFBRA
3 MFB configurations
4 Micro-fluidized beds for industrial applications
5 Micro-bed reactors
Chapter 1. Introduction
Abstract
1.1 Fluidization and fluidized bed
1.2 Typical ΔPB~Ug relationship
1.3 Geldart powder classification
1.4 Gas-solid fluidization regimes
1.5 Fluidization applications
1.6 Miniaturization of fluidized beds
1.7 Micro-fluidized bed applications
1.8 Sources of information on micro-fluidization
Abbreviation
Nomenclature
Greek letters
References
Chapter 2. Fundamentals of gas-solid micro-fluidization
Abstract
2.1 Bed pressure drops in micro-fluidized beds
2.2 Mechanistic analysis of the wall effects
2.3 Discussions on the wall effects
2.4 More influencing factors
Abbreviation
Nomenclature
Greek letters
References
Chapter 3. Gas and solid mixing
Abstract
3.1 Experimental and analytic techniques
3.2 Gas mixing
3.3 Solid mixing
Abbreviation
Nomenclature
Greek letters
References
Chapter 4. Micro-fluidization regimes
Abstract
4.1 Experimental observations
4.2 Fixed bed
4.3 Minimum fluidization velocity
4.4 Particulate fluidization
4.5 Bubbling fluidized bed
4.6 Slugging fluidized bed
4.7 Turbulent fluidized bed
4.8 Distinction between micro- and macro-fluidized beds
4.9 Fluidization regime map for micro-fluidized beds
Nomenclature
Greek letters
References
Chapter 5. Hydrodynamic modeling of micro-fluidized beds
Abstract
5.1 CFD modeling approaches
5.2 Two-fluid method
5.3 The discrete element method
5.4 A brief discussion and future perspective
Abbreviation
Nomenclature
Greek letters
References
Chapter 6. Microreactors for thermal analysis of gas–solid thermochemical reactions
Abstract
6.1 Thermal analysis approaches
6.2 Microreactors for thermal analysis
6.3 Furnace heating microreactors
6.4 Resistively heated microreactors
6.5 Particle bed heating microreactors
6.6 Other non-resistively heating microreactors
6.7 Remarks
Abbreviation
References
Chapter 7. System of micro-fluidized bed reaction analysis
Abstract
7.1 System configurations
7.2 Kinetic data analysis
7.3 New developments in MFBRA
Abbreviations
Nomenclature
References
Chapter 8. Characteristics of micro-fluidized bed reaction analyzers
Abstract
8.1 Approaching intrinsic kinetics
8.2 Understanding reaction mechanism
8.3 Reactions under water vapor atmosphere
8.4 Sampling and characterization of solid particles during a reaction process
8.5 Multistage gas–solid reaction processes
8.6 Reaction kinetics under product gas inhibitory atmospheres
Abbreviations
Nomenclature
References
Chapter 9. Applications of micro-fluidized beds
Abstract
9.1 Drying
9.2 Adsorption
9.3 Catalytic reaction
9.4 Thermal decomposition
9.5 Pyrolysis
9.6 Thermal cracking
9.7 Gasification
9.8 Combustion
9.9 Reduction
9.10 Other reactions
References
Chapter 10. Applications of micro-fluidized bed reactor in industrial process development
Abstract
10.1 Advanced combustion with low-NOx emissions
10.2 Reaction characteristics tested by MFBRA for biomass-staged gasification
10.3 Light calcination of magnesite using transported bed
References
Chapter 11. Characterization of liquid–solid micro-fluidized beds
Abstract
11.1 Introduction
11.2 Hydrodynamics properties
11.3 Applications
11.4 Conclusion
References
Chapter 12. Characterization of gas–liquid–solid micro-fluidized beds
Abstract
12.1 Hydrodynamics
12.2 Applications
12.3 Summary
Nomenclature
Greek letters
Subscripts
References
Index

Guangwen Xu

Dr. Guangwen Xu is is President & Chair Professor at Shenyang University of Chemical Technology, China, and a Fellow of the Royal Academy of Engineering (FREng), UK. Dr. Xu is an active scientist and researcher distinguished for his academic leadership and pioneering work in chemical engineering, especially thermochemical reaction processes to convert fossil and renewable resources into value-added products. He kick-started the micro fluidization research and is the key developer of micro fluidized bed reaction analyzers (MFBRA). Professor Xu established the scientific discipline of Engineering Thermochemistry (ETC) and currently takes leadership roles in the world, national, and regional ETC societies. He is the founder of the prestigious International Symposium on Gasification and its Application (iSGA) and several other international and national conferences. Dr. Xu has authored over 400 peer-reviewed publications and 130 granted patents. He has received several international, Chinese ministerial, and provincial awards for his outstanding academic contributions to the field. He is the Editor-in-Chief of the journals Carbon Resources Conversion (CRC) and Resources Chemicals and Materials (RCM) and the editorial board member of several scientific journals.

Affiliations and expertise

Shenyang University of Chemical Technology (SYUCT), Director of Key Laboratory on Resources Chemicals and Materials of Ministry of Education, and Adjunct Professor of the Institute of Process Engineering (IPE), Chinese Academy of Sciences (CAS), China

Dingrong Bai

Dr. Dingrong Bai is a Professor of Chemical Engineering and Technology at Shenyang University of Chemical Technology. He has more than 30 years of experience in teaching, research, and technology development in chemical engineering, hydrogen fuels, solid waste conversion, and thermochemical conversion processes. His working experience spans academics and industries, with extensive knowledge of fluidization and particle technology. He has led several research and development projects, some of which have been successfully commercialized. He has authored nearly 200 peer-reviewed scientific papers and patents, three fluidization book chapters, and some professional and technical reports on various scientific and technological subjects. Dr. Bai’s current research interests include clean coal technologies, high-temperature fluidization, and advanced thermochemical conversion processes and systems.

Affiliations and expertise

Professor, Shenyang University of Chemical Technology, China

Mingyan Liu

Dr. Mingyan Liu is a professor of Chemical Engineering and Technology at Tianjin University (China) and the leader of the Multiphase Flow and Transfer Process Intensification Research Group of the State Key Laboratory of Chemical Engineering. As a world-leading expert in multiphase chemical reaction engineering, especially liquid-solids and gas-liquid-solids fluidization, he has been deeply involved in research on micro-liquid-solid and micro gas-liquid-solid fluidized bed reactors. He is one of the leading scientists worldwide in this new field. He was once a member of the Council of the Chinese Society of Particuology, a member of the Process Simulation Committee, and a senior member of the Chemical Industry and Engineering Society of China (CIESC). His research achievements in multiphase chemical reaction engineering, heat transfer process enhancement, and energy-saving have been well documented in his more than 100 scientific research papers and 20 patents. He has received many awards from University and National organizations and was the shortlisted IChemE Innovator of the 2011 Year Award.

Affiliations and expertise

Professor of Chemical Engineering and Technology, Tianjin University, China

Vladimir Zivkovic

Dr. Vladimir Zivkovic is a lecturer of Chemical Engineering at Newcastle University (UK) and a member of the world's largest Process Intensification Group within the Chemical Engineering Discipline at the School of Engineering. He is an active scientist and researcher in the field of particle technology & granular flow with a particular interest in the general intensification of solids processing including micro-fluidization technology where he is one of the first researchers and world leader in the field. Dr Zivkovic has authored more than 50 peer-reviewed scientific papers in high-quality international journals. He was a member of the Youth Editorial Committee and is currently an Editorial Committee Member of the Chinese Journal of Chemical Engineering (CJChE). His current research interests include the study of granular dynamics using advanced laser-based techniques, intensified toroidal fluidization (TORBED) and the application of micro-fluidized beds for carbon capture and bioprocessing

Affiliations and expertise

Lecturer, Dept Chemical Engineering, Newcastle University, (UK)