Ebook: Fundamentals of the Physical-Chemistry of Pulverized Coal Combustion

The study of coal for the production of energy is certainly not a new area of research. Many research works were carried out to improve the efficiency of industrial and domestic facilities. In the sixties, however, because of the availability and low cost of petroleum, coal consumption decreased and the research effort in this area was minimum. Meanwhile, the situation has totally changed. Considering the reserves of oil and the instability ofregions where they are located, it is becoming absolutely necessary to develop other sources of energy.The major alternative to oil appears to be coal, at least for the near future. Indeed, the reserves known today represent several centuries of energy consumption.!t is therefore becoming urgent to develop efficient and non polluting technologies to produce energy from coal. The main possibilities are : · liquefaction · gasification · directed combustion. Research and development efforts on liquefaction have been considerably reduced because of high cost of technologies involved and poor prospects for the next two decades. Research works on gasification are progressing; it is a promising approach. However, direct combustion either in pulverized coal furnaces or in fluidized beds is the more promising way of expanding rapidly the utilization of coal. These techniques are already used in some facilities but many environmental problems remain, slowing down their development.

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Content:
Front Matter....Pages I-XIII
Front Matter....Pages 3-3
Coal Characterization in Relation to Coal Combustion....Pages 4-58
Coal Characterization by a Laser Microprobe (LAMMA)....Pages 59-74
Front Matter....Pages 75-75
Kinetics of Devolatilization....Pages 77-103
A Microscopic and Kinetic Study of Coal Particle Devolatilization in a Laser Beam....Pages 104-125
Evaluation of Coal Pyrolysis Kinetics....Pages 126-151
Modelling of Coal Devolatilization with a Non-Linear Heating Rate....Pages 152-158
Porous Morphology of Coal. Its Transformation During Pyrolysis.....Pages 159-177
The Role of Volatiles in Coal Combustion....Pages 178-215
Front Matter....Pages 217-217
Heterogeneous Combustion of Residual Coke Particle....Pages 219-241
Front Matter....Pages 243-243
Pollutant Formation and Destruction....Pages 245-268
Mineral Matter in Pulverized Coal Combustion....Pages 269-287
Influence of Mineral Matter on Boiler Performance....Pages 288-303
Staged Combustion of Pulverized Coal....Pages 304-318
Front Matter....Pages 319-319
Optical Diagnostics for In-Situ Measurements in Pulverized Coal Combustion Environments....Pages 321-346
In-Situ FT-IR Emission/Transmission Diagnostics in Combustion....Pages 347-376
The Mie Theory and the Nature of Attenuation of Thermal Radiation in Pulverized Coal Flames....Pages 377-391
Front Matter....Pages 393-393
Transfer of Fundamental Results to the Modelling of Burners and Boilers....Pages 395-423
Investigation of the Influence of Furnace Geometry and Coal Properties on Furnace Performance with the Help of Radiation Transfer Model....Pages 424-436
Application of Mathematical Flame Modelling to NOX Emissions from Coal Flames....Pages 437-451
Practical Use of Coal Combustion Research....Pages 452-465
Front Matter....Pages 393-393
Synthesis and Recommendations for Future Work....Pages 466-483
Banks of Coals....Pages 485-492
Back Matter....Pages 493-502

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Content:
Front Matter....Pages I-XIII
Front Matter....Pages 3-3
Coal Characterization in Relation to Coal Combustion....Pages 4-58
Coal Characterization by a Laser Microprobe (LAMMA)....Pages 59-74
Front Matter....Pages 75-75
Kinetics of Devolatilization....Pages 77-103
A Microscopic and Kinetic Study of Coal Particle Devolatilization in a Laser Beam....Pages 104-125
Evaluation of Coal Pyrolysis Kinetics....Pages 126-151
Modelling of Coal Devolatilization with a Non-Linear Heating Rate....Pages 152-158
Porous Morphology of Coal. Its Transformation During Pyrolysis.....Pages 159-177
The Role of Volatiles in Coal Combustion....Pages 178-215
Front Matter....Pages 217-217
Heterogeneous Combustion of Residual Coke Particle....Pages 219-241
Front Matter....Pages 243-243
Pollutant Formation and Destruction....Pages 245-268
Mineral Matter in Pulverized Coal Combustion....Pages 269-287
Influence of Mineral Matter on Boiler Performance....Pages 288-303
Staged Combustion of Pulverized Coal....Pages 304-318
Front Matter....Pages 319-319
Optical Diagnostics for In-Situ Measurements in Pulverized Coal Combustion Environments....Pages 321-346
In-Situ FT-IR Emission/Transmission Diagnostics in Combustion....Pages 347-376
The Mie Theory and the Nature of Attenuation of Thermal Radiation in Pulverized Coal Flames....Pages 377-391
Front Matter....Pages 393-393
Transfer of Fundamental Results to the Modelling of Burners and Boilers....Pages 395-423
Investigation of the Influence of Furnace Geometry and Coal Properties on Furnace Performance with the Help of Radiation Transfer Model....Pages 424-436
Application of Mathematical Flame Modelling to NOX Emissions from Coal Flames....Pages 437-451
Practical Use of Coal Combustion Research....Pages 452-465
Front Matter....Pages 393-393
Synthesis and Recommendations for Future Work....Pages 466-483
Banks of Coals....Pages 485-492
Back Matter....Pages 493-502
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