Kang Li

Ceramic Membranes for Separation and Reaction

• Gebundenes Buch

Produktbeschreibung

Ceramic membranes have been developed for similar process applications to polymeric membranes applications, including ultrafiltration, desalination, gas separation, pervaporation, and biochemical reactions. They are used especially where high alkaline (or acid) feed solution or high temperature operation precludes the use of existing polymeric membranes. In general, a ceramic membrane can be described as a permselective barrier or a fine sieve. Ceramic membranes are usually composite ones consisting of several layers of one or more different ceramic materials. They generally have a macroporous support, one or two mesoporous intermediate layers and a microporous (or a dense) top layer. The bottom layer provides mechanical support, while the middle layers bridge the pore size differences between the support layer and the top layer where the actual separation takes place. Commonly used materials for ceramic membranes are Al2O3, TiO2, ZrO2 and SiO2 or a combination of these materials.
This book is a single-authored guide to the developing area of ceramic membranes. It starts by documenting established procedures of ceramic membrane preparation and characterization. The book then focuses on gas separation, the processes involved with the transport and separation of gases in porous ceramic membranes, ceramic membrane modules for gas treatments, the transport of oxygen and hydrogen in dense ceramic membranes, and ceramic hollow fiber membranes for oxygen enrichment. The final chapter covers ceramic membrane reactors. Chapters provide key examples to illustrate membrane synthesis, characterization and applications in industry. The theoretical principles, advantages and disadvantages of using ceramic membranes under the various conditions are discussed where applicable.
The book is aimed at industrial and academic researchers and process developers working on membrane technology and development. Industries for which this book is applicable include: pharmaceutical, food and beverage, biomedical applications (tissue development), waste and wastewater treatment, petrochemicals and energy conversion. It is also relevant to upper-level undergraduates and Masters students taking modules on membrane science, as well as PhD candidates within departments of chemical and process development who would use this book as a source of reference.

Produktdetails

• Verlag: Wiley & Sons
• 1. Auflage
• Seitenzahl: 316
• Erscheinungstermin: 1. Juni 2007
• Englisch
• Abmessung: 250mm x 174mm x 23mm
• Gewicht: 740g
• ISBN-13: 9780470014400
• ISBN-10: 0470014407
• Artikelnr.: 22581371

Autorenporträt

Kang Li is Professor of Chemical Engineering at Imperial College London. His present research interests are in the preparation and characterisation of polymeric and inorganic hollow fibre membranes, fluid separations using membranes, and membrane reactors for energy application and CO2 capture. Kang Li currently leads a research group at Imperial of 2 MSc students, 8 PhD students and 3 post-doctorial research fellows. He has published over 180 research papers in international referred journals, holds five patents, and is the author of a book in the area of ceramic membranes - Ceramic Membranes for Separation and Reaction, John Wiley, 2007 -.

Inhaltsangabe

Chapter 1. Ceramic Membranes and Membrane Processes. 1.1 Introduction. 1.2
Membrane Processes. References. Chapter 2. Preparation of Ceramic
Membranes. 2.1 Introduction. 2.2 Slip casting. 2.3 Tape casting. 2.4
Pressing. 2.5 Extrusion. 2.6 Sol-gel process. 2.7 Dip-coating. 2.8 Chemical
vapour deposition (CVD). 2.9 Preparation of hollow fibre ceramic membranes.
Appendix 2.1: Surface forces. References. Chapter 3. Characterisation of
Ceramic Membranes. 3.1 Introduction. 3.2 Morphology of membrane surfaces
and cross sections. 3.3 Porous ceramic membranes. (a) Bubble point method.
(b) Liquid displacement method. (a) Liquid permeation. (b) Gas permeation.
3.4 Dense ceramic membranes. Notation. References. Chapter 4. Transport and
Separation of Gases in Porous Ceramic Membranes. 4.1 Introduction. 4.2
Performance indicators of gas separation membranes. 4.3 Ceramic membranes
for gas separation. 4.4 Transport Mechanisms. 4.5 Modification of porous
ceramic membranes for gas separation. 4.6 Resistance model for gas
transport in composite membranes. 4.7 System design. (a) Perfect mixing.
(b) Cross flow. (c ) Parallel plug flow. (a) Perfect mixing. (b) Cross
flow. (c) Cocurrent flow. (d) Countercurrent flow. Notation. References.
Chapter 5. Ceramic Hollow Fibre Membrane Contactors for Treatment of
Gases/Vapours. 5.1 Introduction. 5.2 General review. 5.3 Operating modes
and mass transfer coefficients. 5.4 Mass transfer in hollow fibre
contactors. 5.5 Effect of chemical reaction. 5.6 Design equations.
Notation. References. Appendix A. Chapter 6. Mixed Conducting Ceramic
Membranes for Oxygen Separation. 6.1 Introduction. 6.2 Fundamentals of
mixed conducting ceramic materials. 6.3 Current status in oxygen permeable
membranes. Sr(Co,Fe)O3-d (SCFO). La(Co,Fe)O3-d (LCFO). LaGaO3(LGO). 6.4
Dual phase membranes. 6.5 Oxygen transport. 6.6 Air separation. Cocurrent
flow. Countercurrent flow. Effect of operating pressures and temperatures.
Effect of flow patterns. Effect of feed flow rate. Effect of membrane area.
Comparison with experimental data. Production of oxygen using hollow fibre
modules. 6.7 Further development-challenges and prospects. Notation.
References. Chapter 7. Mixed Conducting Ceramic Membranes for Hydrogen
Permeation. 7.1 Introduction. 7.2 Proton and electron (hole) conducting
materials and membranes. 7.3 Dual phase membranes. 7.4 Proton transport.
Effect of membrane thickness. Effect of temperature. Effect of partial
pressure of oxygen. Comparison with experimental data. 7.5 Applications of
proton conducting ceramic membranes. Notation. References. Chapter 8.
Ceramic Membrane Reactors. 8.1 Introduction. 8.2 Membranes as product
separators. 8.3 Membranes as a reactant distributor. Notation. References.