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Membrane Engineering for the Treatment of Gases

Membrane Engineering for the Treatment of Gases

Enrico Drioli | Giuseppe Barbieri | Adele Brunetti

(2017)

Additional Information

Abstract

Elaborating on recent and future developments in the field of membrane engineering, Volume 2 is devoted to the main advances in gaseous phase membrane reactors and separators. The book covers innovative membranes and new processes, and includes new chapters on cost analysis and life cycle assessment. Together with Volume 1, these books form an innovative reference work on membrane engineering and technology in the field of gas separation and gaseous phase membrane reactors.

Table of Contents

Section Title Page Action Price
Cover Cover
Membrane Engineering for the Treatment of Gases Volume 2: Gas-separation Issues Combined with Membrane Reactors i
Preface v
Contents vii
Contents xiii
Chapter 1 - Membrane Reactors for Hydrogen Production 1
1.1 Introduction 1
1.2 Membranes for Hydrogen Production 4
1.3 MR Configurations for Hydrogen Production 5
1.3.1 Packed Bed MRs 5
1.3.2 Fluidized Bed MRs 6
1.3.3 Micro-MRs 7
1.4 Current and Potential Applications of MRs for Hydrogen Production 10
1.4.1 Steam Reforming of Methane and Other Light Hydrocarbons 10
1.4.1.1 Autothermal Reforming 11
1.4.2 Water–Gas Shift (WGS) Reaction 11
1.4.3 MRs for Dehydrogenation Reactions 15
1.5 New Indexes for the Comparison of Membrane and Traditional Reactors 18
1.6 Conclusions 24
Acknowledgements 24
References 24
Chapter 2 - Chemical Looping for Hydrogen Production and Purification 30
2.1 Introduction 30
2.2 Chemical Looping and Membrane Reactor Concepts 34
2.2.1 Membrane-assisted Chemical Looping Reforming Concept 36
2.3 Thermodynamics 38
2.4 Hydrodynamics 44
2.5 Proof-of-Concept: Oxygen Carrier, Membrane Testing, and Fluidized Bed Membrane Reactor Experiments 46
2.6 Conclusions 53
Acronyms 53
Acknowledgements 54
References 54
Chapter 3 - Oxidative Coupling of Methane in Membrane Reactors 58
3.1 Introduction 58
3.1.1 Reactions, Mechanisms, and Important Aspects 59
3.1.2 Research Structure on OCM Membrane Reactor 61
3.2 Experimentation 62
3.2.1 Membrane Modification 63
3.2.1.1 Silica–Sol Impregnation Method 63
3.2.1.2 SiliconOxyCarbide (SiOC) Coating Method 64
3.2.1.3 Coating with Glaze Materials 64
3.2.2 Effect of Structural Parameters 66
3.2.3 Developing a Catalytic Membrane Reactor 67
3.2.4 Experimental Setup 68
3.2.4.1 Control Strategies 71
3.2.4.2 Experimental Results of the OCM Porous Packed Bed Membrane Reactor 73
3.2.4.2.1\rEffect of Methane-to-Oxygen Ratio and Dilution.The methane-to-oxygen ratio is one of the most important factors to be investigat... 73
3.2.4.2.2\rEffect of Temperature and Temperature Profile.It is not an exaggeration to claim that thermal engineering remains the main chall... 74
3.2.4.3 Hybrid Reactors: Fluidized Bed Membrane Reactor 75
3.2.4.4 Hybrid Reactors: Network of Reactors 76
3.2.5 Process and Reactor Integration 77
3.2.5.1 Integration with Methane Reforming 77
3.2.5.2 Dual-membrane Reactors as an Efficient Integrated Reactor Concept 78
3.2.5.2.1\rMechanisms, Operation and Practical Issues (Feasibility Study) 79
Molten Carbonate Membranes. There are some concerns regarding the design and applicability of the proposed dual-membrane reactor... 79
3.2.5.2.2\rTechnical Considerations for the Analysis of the Performance of Integrated Systems.Having considered the advantages of dual-memb... 80
3.2.5.3 Alternative Integrated Reactor: OCM and Ethane Dehydrogenation 81
3.2.6 Model-based Analysis of OCM Membrane Reactors 82
3.2.6.1 Model Validation for Packed Bed Membrane Reactors 83
3.2.6.2 Modeling and Analysis of Dual-membrane Reactor Performance 89
3.2.6.3 Individual Performance Analysis of Dual-membrane Reactors 89
3.2.6.4 Performance of Dual-membrane Reactors in Integrated Processes 89
3.2.6.5 CFD Simulation of OCM Membrane Reactors 91
3.3 Conclusions and Review of Observations and Results 91
Acknowledgements 92
References 92
Chapter 4 - Ultrathin and Thin Film Pd/Ag Membranes for Hydrogen Production 95
4.1 Introduction 95
4.2 Development of Thin Film Pd-based Membranes 97
4.2.1 Membrane Fabrication Methods 98
4.2.2 Supported Membranes for High H2 Flux 100
4.2.2.1 Embrittlement and Sulfur Resistant Membranes 110
4.2.3 Mechanical, Thermal, and Chemical Stability 111
4.2.3.1 Embrittlement and Sulfur Resistant Membranes 111
4.2.3.2 Thermal Stability at High Temperature 115
4.2.3.3 Wear Resistant Membranes 117
4.3 Integration of Pd-based Membranes for Hydrogen Production 118
4.3.1 Water–Gas Shift Membrane Reactors 119
4.3.2 Steam Methane Reforming Membrane Reactor 121
4.3.3 Methanol and Ethanol Reforming Membrane Reactors 126
4.4 Conclusions 129
Disclosure 130
Acknowledgements 130
References 130
Chapter 5 - Polarization and CO-inhibition in Pd-based Membranes and Membrane Reactors 139
5.1 Pd-based Membranes: Overview and Potentialities for Hydrogen Purification 139
5.2 Objectives 141
5.3 Gas–Surface Interactions for Pd-based Membranes 141
5.4 Concentration Polarization in Gas Separation 142
5.5 Inhibition by CO in Pd-based Membranes 144
5.6 Coupled Effect of Concentration Polarization and Inhibition by CO 145
5.6.1 Concentration Polarization Coefficient (CPC) 146
5.6.1.1 Overview on the CPC Definition 146
5.6.1.2 CPC Based on the Permeation Driving Force 148
5.6.1.3 Definition of the CPC in the Presence of Inhibition 150
5.6.2 Inhibition Coefficient (IC) 151
5.6.3 Overall Permeation Reduction Coefficient13 153
5.6.4 Main Results of the Analysis 154
5.6.4.1 Permeance and Flux Analysis 154
5.6.4.2 Permeation Reduction Maps 159
5.7 Concentration Polarization in Membrane Reactors and Contactors 163
5.7.1 Definition of Average CPC 164
5.7.2 CPC Profiles by a Pseudo-homogeneous Approach 165
5.7.3 CPC Profiles from a CFD Heterogeneous Approach 167
5.8 Conclusions 170
List of Symbols 172
Greek Symbols 172
Acronyms 172
Acknowledgements 173
References 173
Chapter 6 - Pd-based Membranes in Hydrogen Production: Long-term Stability and Contaminant Effects 177
6.1 Introduction 177
6.2 Pd-based Membrane Technology 180
6.3 Stability Issues 181
6.3.1 Hydrogen Embrittlement 181
6.3.2 Structural Stability 182
6.3.3 Temperature Stability 183
6.3.4 Stability Against Gaseous Contaminants 185
6.3.4.1 Carbon Monoxide 185
6.3.4.2 Hydrogen Sulphide 187
6.3.4.3 Ammonia 188
6.3.4.4 Hydrocarbons 189
6.3.4.5 Efforts to Reduce the Flux Inhibition by Gaseous Contaminants 191
6.3.5 Other Stability Issues 193
6.3.6 Regeneration of Deactivated Membranes 193
6.4 Applications and Resulting Stability Demands 194
6.4.1 Methane Steam Reforming (MSR) 194
6.4.2 H2 Production from Gasification of Coal and Biomass 196
6.4.3 Water–Gas Shift (WGS) 197
6.4.4 Dehydrogenation of Alkanes 198
6.4.5 Decomposition of Ammonia 199
6.5 Long-term Tests and Results 200
6.6 Concluding Remarks 203
Acknowledgements 203
References 204
Chapter 7 - Membrane Processes for Pure Hydrogen Production from Biomass 212
7.1 Introduction 212
7.2 Membranes for Pure Hydrogen Production 218
7.2.1 Metallic Membranes for Hydrogen Separation 219
7.2.2 Polymeric Membranes for Hydrogen Separation 220
7.2.3 Ceramic Membranes for Hydrogen Separation 221
7.2.4 Membranes for High Temperature Applications 221
7.2.5 Hydrogen Production in Membrane Reactors: Reforming and Water–Gas Shift 223
7.2.5.1 Methane and Biogas Reforming in Membrane Reactors 223
7.2.5.2 Ethanol Steam Reforming in Membrane Reactors 228
7.2.5.3 Dark Fermentation 229
7.2.5.4 Water–Gas Shift in Membrane Reactors 229
7.3 Hydrogen Production from Biomass and Integration with Hydrogen Selective Membranes 233
7.3.1 Gasification 234
7.3.2 Pyrolysis 236
7.3.3 Aqueous Phase Reforming (APR) 237
7.3.4 Liquid Biofuel and Wastewater 239
7.4 Micro-membrane Reactors: Increasing the Area per Volume 240
References 243
Chapter 8 - Membrane-assisted Syngas Production for Gas-to-Liquid Processes 247
8.1 Introduction 247
8.2 Pilot Facility 249
8.2.1 Process Scheme 249
8.2.2 Membrane and Catalyst 252
8.2.3 Catalytic Partial Oxidation Reactor 257
8.2.4 Operating Conditions 258
8.3 Experimental Results 261
8.3.1 Low-temperature Steam Reforming Catalyst 261
8.3.2 Membrane Modules 262
8.3.3 CPO Catalyst 265
8.3.4 Overall Configuration Performance for GTL Applications 268
8.4 Conclusions 269
Acknowledgements 270
References 270
Chapter 9 - Mixed Ionic–Electronic Conducting Membranes for Hydrogen Separation 273
9.1 Introduction 273
9.2 Proton Transfer and Membrane Properties 275
9.2.1 Transport Properties 275
9.2.2 Membrane Properties 277
9.3 Materials 280
9.3.1 Single-phase Materials 280
9.3.1.1 Perovskite Materials 280
9.3.1.2 Tungstate-based Materials 285
9.3.1.3 Other Materials 288
9.3.2 Dual-phase Materials 290
9.3.2.1 Cer–Met Composites 290
9.3.2.2 Cer–Cer Composites 294
9.4 Concluding Remarks and Perspectives 299
References 299
Chapter 10 - Inorganic Membranes for Gas Separation 303
10.1 Introduction 303
10.2 Silica Membranes 306
10.2.1 Sol–Gel Method 308
10.2.2 Chemical Vapor Deposition 313
10.2.3 Silica Membranes Prepared from Preceramic Polymers 316
10.3 Carbon Molecular Sieve Membranes 317
10.3.1 Supported CMS Membranes 320
10.3.2 Self-supported CMS Membranes 324
10.3.3 Aging of CMS Membranes 326
10.4 Zeolite Membranes 327
10.4.1 Zeolite Seed Crystal Preparation 330
10.4.2 Preparation of Seed Layers 332
10.4.3 Seeded Growth for Zeolite Membranes 333
10.4.4 Gas–Vapor Separation Using Zeolite Membranes 334
10.5 MOF Membranes 336
10.5.1 In situ Growth Method 338
10.5.2 Seeded Growth Methods 340
10.5.3 Gas Separation Using MOF Membranes 341
10.6 Conclusions and Outlook 345
References 346
Subject Index 358