Chapter 1 Introduction to Power Plant Chemistry 1
1.1 Introduction of Steam Chemistry Systems 1
1.2 Main Contents of Power Plant Chemistry 2
1.3 Chemistry Requirement for Power Plant 3
1.4 Feedwater and Boiler Water Treatment 6
Chapter 2 High-Purity Makeup Water Treatment 8
2.1 Introduction 8
2.2 Pretreatment 8
2.3 High-Purity Makeup Treatment Methods 32
2.4 Regeneration and Co-current/countercurrent Systems 36
2.5 Demineralizer Performance Calculations 39
2.6 System Design Calculations 41
2.7 Mixed-bed Polishing 42
2.8 Demineralizer Component Fundamentals 43
2.9 Packed-bed Demineralizers 44
2.10 Reverse Osmosis 45
2.11 Electrodialysis and Electrodialysis Reversal 50
2.12 Electrodeionization 51
Chapter 3 Corrosion and Prevention of Metal Materials 53
3.1 Introduction 53
3.2 Oxygen Corrosion in Thermal Devices 56
3.3 Acidic Corrosion of Thermal Devices 60
3.4 Stress Corrosion of Thermal Devices 63
3.5 Corrosion by Enriched Medium in Boiler 66
3.6 Corrosion and Prevention of Copper Alloy 71
3.7 Chemical Cleaning 76
Chapter 4 Condensate Feedwater Chemistry 82
4.1 Introduction 82
4.2 Condensate/Feedwater System Construction Materials 82
4.3 Condensate Chemistry Dissolved Oxygen 83
4.4 Mechanical Removal of Dissolved Oxygen and Other Gases 84
4.5 Chemical Control of Dissolved Oxygen 85
4.6 Flow-accelerated Corrosion 88
4.7 Copper Alloy Corrosion and Preventive Measures 89
4.8 Additional Corrosion Control Requirements 90
4.9 Oxygenated Treatment 91
4.10 Feedwater Chemistry Guidelines 92
4.11 Chemical Feed Systems 94
4.12 Monitoring and Control of Condensate Contaminants 96
4.13 Condensate Polishing and Treatment of Condensate 97
Chapter 5 Boiler Water Chemistry 100
5.1 Introduction 100
5.2 Drum-type Boiler Design 100
5.3 Once-through Steam Generation 102
5.4 Boiler Water Contamination 103
5.5 Boiler Water Treatment Programs 105
5.6 Phosphate Hideout 107
5.7 Altemative Phosphate and Nonphosphate Programs 108
5.8 Heat Recovery Steam Generation 111
Chapter 6 Steam Chemistry 113
6.1 Introduction 113
6.2 Primary Carryover Products 113
6.3 Mechanical Carryover 115
6.4 Vaporous Carryover 116
6.5 Solids Introduction by Contaminated Attemperator Water 117
6.6 Superheater Exfoliation 117
6.7 Water Chemistry Limits to Prevent Steam Contamination by Carryover 118
6.8 Boiler Water Chemistry Guidelines for Control of Steam Chemistry 119
6.9 Steam Chemistry Monitoring 119
6.10 Steam Chemistry Issues at Industrial Plants without Turbine 120
Chapter 7 Chemistry Sampling 121
7.1 Introduction 121
7.2 The Need for Sampling 122
7.3 Sample Point Selection 124
7.4 Cogeneration/Combined Cycle/Industrial Plant Sampling 127
7.5 Techniques to Obtain Representative Samples 127
7.6 Data Acquisition 131
Appendix Ⅰ Glossary of Chemistry in Fossil/Nuclear Power Plant 133
Appendix Ⅱ Glossary of Materials in Power Plant 137
References 138