1991 International Conference on Coal Science Proceedings

Part 1: Coal as A Molecular Solid (I) Chapter 1. Electron Transfer in Coals Chapter 2. Examination of Macromolecular Network of Coal by Differential Scanning Calorimetry Chapter 3. Coal-Water Molecular Interactions Chapter 4. Charge Transfer Complexes between Coal and Electron Acceptors: Non Covalent Interaction in Coal Structure Chapter 5. Solid State C-13 NMR Investigations about the Reactivity of Coals and Maceral ConcentratesPart 2: Coal as A Molecular Solid (II) Chapter 6. Solvent Swelling of Coal in Binary Solvent System Chapter 7. Computer Studies of Coal Molecular Structure Chapter 8. Effect of Various Additives on Non-Covalent Interactions in Coals Chapter 9. Molecular Structure of Bituminous Coals - New Insights from Binary Solvent Studies Chapter 10. The Role of Moisture in the Macromolecular Structure of CoalsPart 3: Chemical Composition Chapter 11. Thermal Alteration of Unbound Biomarkers in Low Rank Coals during Hydrous Pyrolysis Simulating Early Coalification Chapter 12. Monomers in Coal Macromolecules Chapter 13. Determination of Percentage Reactives under Pf Combustion Conditions Chapter 14. Extraction Yields and GC/MS Characteristics of Extracts from High Rank Coals and Anthracites Chapter 15. Spectroscopic Characterization of Aromatic Fractions from Maturation Series of CoalPart 4: Analytical and Spectroscopic Methods (I) Chapter 16. Advanced Electron Paramagnetic Resonance (EPR) Techniques for the Study of Coal Structure Chapter 17. Carbon Skeletal Parameters of Coals from Single Pulse Excitation 13C NMR Chapter 18. Multi-Dimensional EMR of American Coals Chapter 19. Comparison of 13C Chemical Shielding Anisotropy in Model Compounds & Coals with Theoretical Values Chapter 20. Coal Structure Determination Using 19F as A Chemical Label and NMR ProbePart 5: Analytical and Spectroscopic Methods (II) Chapter 21. An 1hnmr Study on Argonne Premium Coals Swollen by Deuterated Solvents Kikuko Hayaiizu, Shigenobu Hayashi and Masaru Yanagisaw Chapter 22. Low Intensity Spectral Analysis of Liptinite, Vitrinite, and Inertinite Macerals Chapter 23. Proposed Techniques to Enhance Vibrational Spectra of Coals: Atr Contact Sampling, Solvent Dissolution, and Microspectrometry Chapter 24. Effect of Vitrinite and Inertinite Fluorescence Propertieson Combustion and Hydrogenation Reactivities of Coals Chapter 25. Success in Using The Natural Gamma Properties Ofcoals and Stones to Give An On-Line Measure of Mineral ContentPart 6: Petrology and Chemical Characterization - Posters Chapter 26. Organic Petrology and Geochemistry of Hebe Coal Seam, Collie Basin, Western Australia Chapter 27. Direct Microscopic Examination of Morphology Changes during Coal Oxidation by An Oxygen Plasma Chapter 28. Structural Studies on Japanese Bituminous Akabira Coal Chapter 29. Jet and Other Carving-Coals Chapter 30. Comparison of Alkanes Released from Coals via Hydropyrolysis and Low-Severity Hydrogenation Chapter 31. Petrographic Characterization of Spanish Bituminous Coals from the Central and Teverga Basins Chapter 32. A Comparative Study of the Structure and Reactivity of Australian and International Coals Chapter 33. A Study of the Reflectance Indicatrix of Vttrinite Chapter 34. Acid Base Interactions on the Surface of Coal Chapter 35. A Bloch Decay and Ultra High Speed CP/MAS 13C NMRstudy of the Argonne Premium Coals and Selected Oxidized Low-Rank Coals Chapter 36. Structure of Asphaltenes Precipitated from Tetraline Extracts of Hard Coals Chapter 37. The Effects of Early Diagenetic Bacterial Sulphate Reduction upon the Petrology and Chemistry of Coal Chapter 38. Gas Evolution from Coal in Sealed Glass Ampoules Chapter 39. Petrology and Geochemistry of Canadian Lipttntte-Rich Coals Chapter 40. Vitrinite Concentrates from a Series of High Volatile Bituminous Coals to AnthracitesPart 7: Chemical Reactions Chapter 41. Role of Solid-State Interactions in the Acid-Catalyzed Thermolysis of Surface-Attached Diphenylalkanes Chapter 42. Modeling Coal Chemistry: One Electron Catalytic Reactions Chapter 43. New Developments in the Reactions of Low Rank Coals with Carbon Monoxide and Water Chapter 44. Thermal and Cataltyic Cleavage of Arylalkyl Coal Linkages Chapter 45. Hydrogen Transfer and Alkylation Reactions during Supercritical Gas Extraction of a High Sulphur Lignite with MethanolPart 8: Oxidation and Weathering Chapter 46. An On-Line Fluorescence Technique for the Detection and Characterization of Lump Weathered Coal Chapter 47. Role of Water in the Low Temperature Oxidation of Coal Chapter 48. The Reduction of Ferric Iron by Coal Surfaces Chapter 49. Investigation of Coal Surfaces by Means of Energy Dispersive X-Ray Microanalysis(EDXMA) Chapter 50. The Influence of Weathering and Low Temperature Oxidation on the Combustion Behavior of Bituminous CoalsPart 9: Chemical Reactions - Posters Chapter 51. Anion-Exchange Materials from Coal Chapter 52. Thermolysis of Surface-Immobilized Phenethyl Phenyl Ether Chapter 53. Comparative Oxidation of Cretaceous and Carboniferous Coking Coals Chapter 54. Swelling Rate of Coal with Different Solvents Chapter 55. Oxidation Studies of New Zealand Export Coals Chapter 56. Formation and Transformation of Carbon Monoxide When Storing Organic Substances, Especially Hard Coals Chapter 57. Reversible and Irreversible Interactionof Oxygen with Coal of Various Rank Chapter 58. Studies on Oxidised Coal for the Production of Coal-Water Slurry Chapter 59. Low Temperature Oxidation of Bituminous Coals and the Influence of Methane on This Process Chapter 60. Solvent-Induced Free Radical Scission of Strong Bondsin Coal: An Experimental and theoretical Study of the Radical Hydrogen Transfer Pathway. Chapter 61. The Role of Hydroxyl and Carboxyl Groups of Coal in Its Solubilization by Methanol/Naoh Treatment Chapter 62. The Comparative Study on Hydrogen Transfer from Tetralin to Coal, Its Tetrahydrofuran Extract and Residue Chapter 63. Oxidation of Coal from Candiota Chapter 64. Pretreatment of Coals with Supercritical Solvents under Coal Liquefaction ConditionsPart 10: Combustion and Gasification - Fundamentals and Kinetics Chapter 65. The Intrinsic Reactivity of Carbons to Oxidizing Gases: Structural Effects Chapter 66. Effects of Burnout on Char Oxidation Rates Chapter 67. The Effect of Burnout on the Reactivity of Pulverised Coal Particles Chapter 68. The Reactivity of Coal Chars Produced under Various Pyrolysing Conditions Chapter 69. Coal Char Reactivity and Burn-offPart 11: Gasification Chapter 70. Catalyst Effectiveness of Calcium Carbonate in Steam Gasification of Low Rank Coals Chapter 71. Transformed DTA and Its Application in the Kinetic Study of Coal Gasification in CO2 Chapter 72. Characteristics of a 2T/D Pressurized Two-Stage Entrained Flow Coal Gasifier Chapter 73. A Novel Kinetic Approach to Predict The Gasification Rates of Larger Particles Chapter 74. Kinetics and Mechanism of the Alkali Catalyzed Gasification of CarbonPart 12: Combustion Chapter 75. The Release of Sodium and Potassium during Pulverized Coal Combustion Chapter 76. Combustion Reactivity of Coals - Evaluation of Laboratory Techniques Chapter 77. Simulation of Pulverized Coal Combustion: Prediction of Unburned Carbon at Furnace Outlet Chapter 78. Coal Reactivity in a Batch Fluidized Bed Combustor Chapter 79. The Impact of Coal Beneficiation on Combustion BehaviorPart 13: NOx and SOx (I) Chapter 80. Characterization of British Coals for Low NOx Combustion Chapter 81. Gaseous Nitrogen Species in the Pressurized Fluidized Bed Combustion of Coals Chapter 82. Optimization of Staged Combustion Conditions in a Fluidized Bed for Simultaneous Reduction in NOx and SO2 Emissions Chapter 83. Effect of Coal Blends and Qualities on the Performance of a Swirl Stabilized Internally Air Staged P.F. Burner Chapter 84. Secondary Pyrolysis and Combustion of Coal VolatilesPart 14: NOx and SOx (II) Chapter 85. Experimental Investigation of NOx Formation during The Combustion of Coal Volatiles Chapter 86. Models for the Role of Nitrogen Functionality in the Release of Nitrogen Oxides from Coal Chars during Gasification Chapter 87. Factors in the Conversion of Fuel Nitrogen to Nitric and Nitrous Oxides during Fluidized Bed Combustion Chapter 88. Detailed Investigation into the Formation and Destruction of N-Species from Low Rank Coal Combustion Chapter 89. Functional Forms of Nitrogen in Coals and Coal Volatiles in Relation to NOx FormationPart 15: ash and Minerals Chapter 90. The Effect of Mineral Additions to a Coal on Ash Deposition Behavior Chapter 91. The Effect of Carbon on the Viscosity and Liquid us Temperature of Slags Chapter 92. Flow Dynamics of ash Deposition in Heat-Exchanger Tube Banks Chapter 93. Initial Stages of the Transformation of Pyrite in a Simulated Coal Flame Chapter 94. Pulverized Coal Combustion: The Influence of Mineral Matter on the Structure and Reactivity of CharsPart 16: Combustion and Gasification - Posters Chapter 95. Gasification of Coal with K-Exchanged Brown Coal Prepared from Potassium Chloride Chapter 96. Local Structure of Iron Species Dispersed on Coal-Effect of Iron-Loading Conditions Chapter 97. Thermogravimetric Study of Anthracite Gasification in CO2 Catalyzed by Black Liquor Chapter 98. Experimental and theoretical Studies of the Burning of Small Fuel Particles Chapter 99. Behavior of Coal ash in A Pressurized Fluidized Bed Gasifier. Chapter 100. Measurement of Oxygen Chemisorption onto Coal Chars and Carbon by Use of Mass Spectrometry Chapter 101. Reaction of Calcium and Alkali Elements with Aluminosilicates and Quartz during Coal Combustion Chapter 102. Gasification Test of Coal Liquefaction Residue from Pilot Plant Chapter 103. Enhancement of Coal Gasification Activity by Coal-Catalyst Interactions Chapter 104. Determination of Progress of Chemical Reactions in the Grid Zone of a Fluidized Bed Gasifier of Coal Char Chapter 105. Influence of Preswelling on the Burning Profile of Coal Chapter 106. Coal Combustion Studied with a Laser Microreactor - A Video Chapter 107. A New Fundamental Explanation and Mathematical Description of the H2 Induced Burn-off Behavior of Char Gasification Chapter 108. CO2-Reactivity of Heat-Treated Metallurgical Coke Chapter 110. Low Rank Coal Inorganics-to-Ash Transformations during Combustion Chapter 111. The Effect of ash Components on the No Reduction and Formation in the Presence and Absence of Air Chapter 112. Structure and Properties of Unburned Chars from Fluidized Bed Coal Combustion Chapter 113. The Development of Coal Char Reactivity during CO2 Gasification Chapter 114. Solid-Catalysed N2O Destruction in Combustion of Coal Chapter 115. Kinetics of No-Char Reaction in A Fluidized Bed Reactor and Measurement of Internal Area Chapter 116. NOx and SOx Emissions in FBC of Coal: Validation of the Dut Sure-Model by Experimental Data from DMTPart 17: Pyrolysis and Low Temperature Carbonization - General Chapter 117. Mechanical Anisotropy and Strength Development of Metallurgical Cokes Chapter 118. Development of the Porosity of Lump Coke in Blast Furnace Operation Chapter 119. The Solvation of Coals at Elevated Temperatures Chapter 120. Low-Temperature Oxidation of Coals: Its Effecton The Textural Development of the Chars Chapter 121. Adsorbent Carbons from Coals by Chemical ActivationPart 18: Pyrolysis and Combustion - Kinetics and Mechanisms Chapter 122. Network Changes during Coal Pyrolysis: Experiment and theory Chapter 123. Modeling The Devolatilization Behavior of Various Coals Chapter 124. Identification of Pyrolysis Reactions by the Comparison Ofcoal Macerals and Model Polymers Chapter 125. Laser Pyrolysis of An Entrained Stream of Coal Particles Chapter 126. Evaluation of Errors Resulting from Particle Shape assumptions Applied in Coal Combustion ModeungPart 19: Pyrolysis and Low Temperature Carbonisation -Intermediates and Final Products Chapter 127. Molecular Mass Distribution in Goal Tarsas A Function of Pyrolysis Parameters Chapter 128. Thermal Decomposition of Maceral Concentrates: Comparison of Pyrolysis Tars and Liquefaction Extracts Obtained under Conditions Minimising Secondary Reactions Chapter 129. The Fate of Sulfur in Mild Gasification Liquids Chapter 130. Characterization of Coal Tar Pitches: Relationship with Chemical Composition of Parent Tars. Chapter 131. Effect of Steam and Hydrogen Pressure on Fixed-Bed Pyrolysis of Lignites and Oil ShalesPart 20: Pyrolysis and Low Temperature Carbonization - Thermoplasticity Chapter 132. Some a Sects of the Role of Coal Thermoplasticity under High Pressure in the Development of Coke Structure and Mechanical Properties Chapter 133. Apparent Viscosity of Softening Coal Heated at Elevated Pressures Chapter 134. Effects of Addition of Coal Tar and Petroleum Pitches on the Thermoplastic Properties of Coals Chapter 135. Observation of Swelling Behavior during Carbonization by Coke Oven with X-Ray Computerized Tomographic Scanner Chapter 136. A Study of the Plastic Layer in Relation to Coking Pressures in the Carbonization of CoalsPart 21: Pyrolysis and Low Temperature Carbonization - Posters Chapter 137. Kinetics of Pyrolyses of Coals Varying in Rank Chapter 138. Co-Pyrolysis of Turkish Lignites with Oil Shales and Asphaltites Chapter 139. The Chance of thermal Conductivity of Coal during Pyrolysis Chapter 140. Influence of Mass and Heat Transfer on the Pyrolysis of Large Coal Particles Chapter 141. Preparation of Molecular Sieving Carbon from Coal Modified by Organic Compounds Chapter 142. Mass Spectrometric and Chemometric Studies of thermoplastic Properties of Coals Chapter 143. Utilization of Fluorescence Spectra Analysis for the Sophisticated Coke Making Chapter 144. Structure Changes in Coal Molecules during Tar Releasing Period in Flash Pyrolysis Chapter 145. Multi-Stage Formed Coking Process to Produce Cokes of Higher Mechanical Strength Chapter 146. The Effects of Secondary Reactions on Nitrogen Distributions from Rapid Coal Pyrolysis Chapter 147. Three-Dimensional Paths of Travel of Gases Produced in a Test Coke Oven Chapter 148. Application of Indirect Tensile Strength Tests to Metallurgical Coke Chapter 149. Kinetic Studies of the Pyrolysis of Brown Coal Chapter 150. Application of Microscopy to the Investigation of the Thermal Properties of Brown Coal Chapter 151. Chemical Characterization of Hydropyrolysis Chars Chapter 152. Development of the IGT Mild Gasification Process Chapter 153. A Study of Large Pores of Coke from Types of Coal and Blends by Image Analysis Chapter 154. Prediction of Pitch Coke Anisotropy from Proximate Analysis and EPR Characterization of Pitches Chapter 155. Tests of A Mechanism for H2s Release during Coal Pyrolysis Chapter 156. Co-Carbonization of QI Free Pitches Derived from Coal Tar and Coal Hydrogenation Product Chapter 157. A Study of Coal Utilization Process by Flash Pyrolysis Chapter 158. Unified Interpretation of Supercritical Fluid Extraction of Coal Chapter 159. Behavior of LTC Coke and Char: Effect of Coal Rank Studied by Molecular Probe Chromatography Chapter160. Preheating of Coal: Textural and Technological Consequences Chapter 161. Formation of Methane during Coalification and Pyrolysis Chapter 162. Influence of Coal Oxidation on Char Reactivity Chapter 163. Characterization of Coal Tar Pitches. Are The Separative Methods Pertinent for the Prediction of Their Thermal Behavior?Part 22: Liquefaction and Hydropyrolysis - Kinetics and Mechanisms Chapter 164. Operations in BCL Process Pilot Plant in Morwell, Victoria, Australia Chapter 165. Studies of Retrogressive Reactions in Direct Liquefaction Chapter 166. Retrogressive Reactions at Low Temperatures of 100-350 ºC in Coal Liquefaction Chapter 167. Temperature-Programmed Liquefaction of Lowrank Coal. Evaluation of Coal Depolymerization Reactions by CPMAS 13C NMR and Pyrolysis-GC-MS Chapter 168. Multistage Hydrogenation of Coal - A New ConceptPart 23: Liquefaction and Hydropyroiysis - Catalysis (I) Chapter 169. A Comparison of Alternative Strategies for the Hydroliquefaction of an Australian Brown Coal Chapter 170. Liquefaction of Subbituminous Coal in the Presence of Dispersed Iron and Molybdenum Catalysts Chapter 171. Catalytic Activities and Their Enhancements of Iron Ores in Direct Liquefaction of Coal Chapter 172. Coal Dissolution Promoted by Ultrafine Iron-Based Catalysts Chapter 173. Comparison of Thermal and Catalytic Solvent-Mediated Coal Dissolution in an Inert AtmospherePart 24: Liquefaction and Hydropyrolysis - Catalysis (II) Chapter 174. Catalyzed Hydrogen/Deuterium Exchange Reactions on Coal Chapter 175. Catalytic and Non-Catalytic Hydropyrolysis of a Chinese Lignite Chapter 176. Novel Dispersed Catalysts for Fixed-Bed Hydropyrolysis of Coal Chapter 177. Highly Active Catalyst of Coal Liquefaction Chapter 178. Optimization of Roles of Solvent and Catalyst in the Two-Stage LiquefactionPart 25: Liquefaction and Hydropyrolysis - Upgrading Chapter 179. A Novel Method to Estimate Coal Liquefaction Reactivity Chapter 180. Partial Maceral Separation in Dense Medium Coal Preparation Equipment and Its Effect on Direct Liquefaction Chapter 181. Influence of Petrographical Factors on Hydrogenation of Inertinite Rich Coals from the Upper Silesian Coal Basin of Poland Chapter 182. Pyrolysis of Maceral Concentrates Effect of Heating Rate and Pressure on Product Yields and Structures Chapter 183. Investigation of the asphaltenes from Coal Macerals by Elemental Analysis and 1h NMR SpectrometryPart 26: Liquefaction and Hydropyrolysis - Solvents Chapter 184. Effects of Quantity and Quality of Solventon Reaction of Brown Coal Liquefaction Chapter 185. Solvent Effects in Low-Severity Liquefaction and Co-Processing of a Subbituminous Coal Chapter 186. Characterization of Hydrogen Transfer Reactions of Model Solvents Using Elemental Sulphur Chapter 187. Incorporation of Process Hydrogen into Coal Liquefaction Solvent Monitored by D/H Ratio Chapter 188. Conversions of Aliphatic Carbons Bound to Aromatic Rings in Humic Structures of Coals into Alkane CarbonsPart 27: Liquefaction and Hydropyrolysis - Upgrading Chapter 189. Upgrading of Liquids from Direct Coal Liquefaction Chapter 190. Fluid Catalytic Cracking of Coal Liquids Chapter 191. Some Characteristics and Catalytic Behavior of New Ni-W Catalysts Developed for Upgrading Coal-Derived Liquids Chapter 192. Inspection of Integrated Two-Stage Liquefaction Products as Petroleum Refining Feedstocks Chapter 193. Syncrude Hydrotreating: NMR Based Models and PredictionsPart 28: Coprocessing Chapter 194. Synergistic Effects of Coprocessing Originated from Interactions between Coal and Heavy Oil Chapter 195. Coprocessing of Petroleum Derived Vacuum Bottoms and a Ligniteusing Catalyst Precursors Chapter 196. Coprocessing of Coal with Asphaltenes from Coal Chapter 197. Low Temperature Pyrolysis of Plastic Waste in the Presence of Coal Chapter 198. Lignin-Assisted Coal DepolymerizationPart 29: Liquefaction and Hydropyrolysis - Models and Physical Effects Chapter 199. Experimental Simulation of Coke Deposition in Preheater of Coal Liquefaction Process Chapter 200. The Effect of Coal Preparation on the Filtration Step in Direct Liquefaction Chapter 201. A Study of Coal Liquefaction by Coal Model Materials Chapter 202. Hydrodeoxygenation Ok Xanthene over a Sulfided Chapter 203. Properties and Structure of the Heavy Residues from Liquefied Bituminous CoalsPart 30: Liquefaction and Hydropyrolysis - Posters Chapter 204. Effect of Inherent Mineral Matter and Additives on Hydrogenation of Spanish Coals Chapter 205. Coal Behavior in Dry Rapid Catalytic Hydrogenation Chapter 206. Ruthenium Promoted Nickel-Molybdate Catalysts for Hydrotreating Coal-Derived Oils Chapter 207. 0.1 T/D BSU Tests of Battle River Coal Liquefaction and Its Coprocessing with Tar Sand Bitumens Chapter 208. Structure and Dispersion of Iron-Based Liquefaction Catalysts Chapter 209. Liquefaction of Maceral Concentrates in a Flowing Solvent Reactor: Changes in Product Structure with Reaction Conditions Chapter 210. Hydrocracking of Coal Derived Liquids - Deactivation and Carbon Deposition in the Very Early Part of the Catalyst Life Chapter 211. Catalytic Coprocessing a Western Kentucky Tar Sand Bitumen in a 1/8 TPD Pilot Plant Chapter 212. Effect of Preheat Treatment on Coal Liquefaction Chapter 213. Solid-State C13-NMR Studies on the Initial Stage of Coal Lique1 Action Chapter 214. Exploring The Structure of Coal Liquefaction Solvents Chapter 215. Oil Stripping and Liquid Residence Time in the Coal Hydrogenation Reactor Chapter 216. Catalytic Hydrotreating of Coal Tar Pitchesin Supercritical Fluid for Nitrogen Removal Chapter 217. Studies on the Catalysts for Coal Liquefaction (VII)- Specific Hydrogenolysis-Degradation of Coals Catalyzed by Various Kinds of Catalysts - Chapter 218. Dissolution of Coal with Ethanol under Nitrogen Pressure. Catalytic Effect of ZnCl2 Chapter 219. Heteroatom Elimination in the Hydrogenation Process of Brown Coal Derived Liquids Chapter 220. Effect of the Characteristics and Degree of Filling of the Autoclave on Coal Hydroliqueafaction Chapter 221. Parameter Evaluation for Coprocessing of Coal and Heavy Oils Chapter 222. Liquefaction of Wandoan Coal by LT/D PSUPart 31: Chemical and Physical Beneficiation Chapter 223. Reactivity of Pyrites and Dislocation Density Chapter 224. A Novel Approach to Establesh The Relationnship between Collector Properties and the Flotation Behavior of Coal in Various Flotation Cells Chapter 225. Coal Flotation by Intrinsic Bubble Formation Chapter 226. The Cleaning Efficiency of the Aglofloat Process Chapter 227. Modular Coal Preparation Plant Philosophy to Satisfy Stringent Market RequirementsPart 32: Bulk and Surface Properties Chapter 228. Coal Cleaning for Liquefaction by Selective Agglomeration with Recycle Oils Chapter 229. Briquetting of Coal Fines: Some Important aspects Chapter 230. The Selection of Flotation Reagents Based Gnthe Sukeece Properties of Coal Chapter 231. Clean-up of Oil Contaminated Solids Using Coal as Contaminant Collector Chapter 232. Coal Wettability from Surface Sites Characterization: A Microcalorimetric StudyPart 33: Material Science - Posters Chapter 233. Measurement of Property Change of Coals Stored in Stockpile for a Long Time Chapter 234. Upgrading of Low Rank Western Canadian Coal Chapter 235differences in the Properties of Low ash Goal Obtained by Froth Flotation and Density Separation Chapter 236. Effect of Additives on the Fluidity and Stability of Coal Water Mixture Chapter 237. Selection of Binders for Briquetting Processes Chapter 238. Enhanced Liberation of Mineral and Pyrite through Low Temperature Treatment of Herrin Il. No. 6 Coal Chapter 239. Adsorption of Carbon Dioxide on Coals at Elevated Pressures Chapter 240. Investigations into the Interactions of Chemical Agents during Froth Flotation of Hardcoal Chapter 241. The Effect of the Coal Slurry Density on Kinetics of the Agglomeration ProcessPart 34: Sulphur in Coal Chapter 242. Characterization and Chemistry of Organically Bound Sulfur during Coal Conversion Chapter 243. Reactivity of Sulphur Forms in a Sulcis Coal Chapter 244. in Situ XAFS Studies of Sulfur Reactions during Coal Pyrolysis and Oxidation Chapter 245. Chapter Characterization of Mineral and Coal Pyrite Chapter 246. An 15nmr Method for the Characterization of Organic Sulfurin Coal and Coal Products via Iminosulfurane Formation1Part 35: Heteroatoms in Coal Chapter 247. Chlorine in Coal: ANXAFS Spectroscopic Investigation Chapter 248. Comparison of Pyrolytic and X-Ray Spectroscopic Methods for Determining Organic Sulfur Species in Coal Chapter 249. Kinetics of Chlorine Release from Coal and Model Compounds during Heating in a Nitrogen Atmosphere Chapter 250. Selective Oxidation for the Characterization of Organic Sulfur and Nitrogen Compounds in Coal Chapter 251. The Influence of Process Parameters on the Distribution of N and S in the Coal Pyrolysis ProductsPart 36: Desulphurisation Chapter 252. Adsorption of Sulfolobus Acidocaldarius on Coal and Pyrite Surfaces: An Important Role in Desulfurization Chapter 253. Pyrite Suppression in Oil Agglomeration of Coal Chapter 254. Pyrolytic Desulphurisation of Some High Sulphur Coals Chapter 255. Kinetics of Sulfur Containing Intermediates during Desulfurization of Coal with Supercritical Methanol Chapter 256. CaCO3 Calcination and CAO Sulphation Reactions Involved in SO2 RemovalPart 37: Environmental Coal Science - Posters Chapter 257 Biomonitoring of Coal-Fired Pover Plants Contamination in Candiota Region, Southern BrazilChapter 258. Lysimeter-Experiments to Investigate Fluid-Dynamical, Chemical and Microbiological Processes in Coal PilesAuthor Index