Dry Syngas Purification Processes for Coal Gasification Systems 0128188669, 9780128188668
Dry Syngas Purification Processes for Coal Gasification Systems illustrates the promising development status of dry syng
384 23 26MB
English Pages 288 [280] Year 2020
Table of contents :
Front-Matter_2021_Dry-Syngas-Purification-Processes-for-Coal-Gasification-Sy
Dry Syngas Purification Processes for Coal Gasification Systems
Copyright_2021_Dry-Syngas-Purification-Processes-for-Coal-Gasification-Syste
Copyright
Preface_2021_Dry-Syngas-Purification-Processes-for-Coal-Gasification-Systems
Preface
Acknowledgment_2021_Dry-Syngas-Purification-Processes-for-Coal-Gasification-
Acknowledgments
Chapter-1---Introduc_2021_Dry-Syngas-Purification-Processes-for-Coal-Gasific
1 . Introduction
1.1 Coal-derived syngas
1.2 Requirement for syngas cleaning for coal gasification systems
1.3 Wet syngas purification process
1.4 History of dry syngas purification processes
1.4.1 Basic strategy for developing dry sulfur removal process
1.4.2 Research history of candidates for dry sulfur removal sorbent
1.4.2.1 Sulfur removal performance
1.4.2.2 Sorbent stability and regenerability
1.4.2.3 Binary oxide with sorbent stability
1.4.2.4 Moderate-temperature application of zinc ferrite
1.4.3 Research history of removal of various impurities in syngas
1.4.3.1 Hydrogen halides
1.4.3.2 Metal carbonyls
1.4.3.3 Nitrogen compounds
1.4.3.4 Alkali metals
1.4.3.5 Heavy metals
1.4.3.6 Tars
1.4.3.7 Remaining oxygen
1.4.3.8 Other trace elements
1.4.3.9 Summary of this section
1.5 Tasks to develop a dry syngas purification process
References
Chapter-2---Advantages-of-dry-s_2021_Dry-Syngas-Purification-Processes-for-C
2 . Advantages of dry syngas purification
2.1 Retaining sensible heat and steam concentration
2.2 Simultaneous removal and separation of impurities
2.3 Lower reproduction of wastes
2.4 Elimination of wastewater treatment
2.5 Compact plant size
References
Chapter-3---Measurement-of-imp_2021_Dry-Syngas-Purification-Processes-for-Co
3 . Measurement of impurities in syngas
3.1 Syngas composition and moisture
3.2 Sulfur compounds
3.3 Halides
3.4 Ammonia and nitrogen compounds
3.5 Mercury
3.6 Other expected impurities and status of identification
3.7 Related gas analyzer for process control
References
Chapter-4---Development-of-sorbents-u_2021_Dry-Syngas-Purification-Processes
4 . Development of sorbents used in dry syngas purification
4.1 Metal oxide-based sulfur removal sorbents
4.1.1 Basic chemistry of zinc ferrite sorbent
4.1.1.1 Terms of step procedure in cyclic operation
4.1.1.2 Terms of chemical reaction in cyclic operation
4.1.1.3 Related terms
4.1.2 Preparation of zinc ferrite-based reactant material
4.1.3 Molding of honeycomb structure of zinc ferrite sorbent
4.2 Alkali metal-based halide removal sorbents
4.2.1 Basic chemistry of halide removal sorbent
4.2.2 Production of halide removal sorbent
4.3 Sorbents for mercury and other trace elements
4.4 Countermeasures for side reactions
References
Chapter-5---Methodology-for-evaluat_2021_Dry-Syngas-Purification-Processes-f
5 . Methodology for evaluation of sorbent performance
5.1 Performance indicators: achievable concentration, capacity, and kinetics
5.2 Preliminary evaluation: thermogravimetric analysis
5.3 Breakthrough characteristics: fixed-bed reactor test
5.4 Material balance: sorbent analysis
5.5 Reaction mechanisms: in situ measurements
5.6 Performance prediction: pore structure analysis
5.6.1 Pore structure and durability of zinc ferrite sorbent for sulfur removal
5.6.2 Empirical prediction of capacity of sodium aluminate sorbent for halide removal
References
Chapter-6---Process-deve_2021_Dry-Syngas-Purification-Processes-for-Coal-Gas
6 . Process development
6.1 Reactor design
6.2 Sorbent installation
6.3 Flow control in a honeycomb reactor
6.4 Process monitoring system
6.5 Process control strategy
6.6 Process integration
References
Chapter-7---Scaling-up-st_2021_Dry-Syngas-Purification-Processes-for-Coal-Ga
7 . Scaling-up strategies
7.1 Expected issues for scaling up
7.2 Cyclic operation of sulfur removal process at bench-scale test facility
7.2.1 Bench-scale test facility and process operation
7.2.2 Sulfur behavior during desulfurization cycle operation
7.2.3 Oxygen demand in regeneration step of desulfurization cycle operation
7.3 Verification of heat balance at pilot plant
7.4 Confirmation of start-up procedure at demonstration plant
7.5 Economic evaluation of dry syngas purification process
7.6 Case study of oxy-fuel integrated gasification combined cycle power plant
References
Chapter-8---Applications-of-dry-_2021_Dry-Syngas-Purification-Processes-for-
8 . Applications of dry syngas purification
8.1 Oxy-fuel integrated gasification combined cycle with CO2 separation at low energy consumption
8.2 Zecomag and Zecomix cycles
8.3 Integrated gasification fuel cell power generation
8.4 Miscellaneous systems including polygeneration
8.5 Future options for the coal energy conversion process
References
Index_2021_Dry-Syngas-Purification-Processes-for-Coal-Gasification-Systems
Index
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