Impact of Mineral Impurities in Solid Fuel Combustion

1. Front Matter

   Pages i-xii

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2. Keynote Papers

   1. Ash-Related Issues During Combustion and Gasification

      • Steven A. Benson, Everett A. Sondreal

      Pages 1-21

   2. Mineral Characterization for Combustion

      • Colin R. Ward

      Pages 23-32

   3. The Development of Power Technologies for Low-Grade Coal

      • K. Basu

      Pages 33-44

   4. Low-Rank Coal and Advanced Technologies for Power Generation

      • Dong-ke Zhang’, Peter J. Jackson, Hari B. Vuthaluru

      Pages 45-64

   5. The Thermal Conductivity of Ash Deposits

      • R. P. Gupta, T. F. Wall, L. Baxter

      Pages 65-84

   6. The Development of Advanced Clean Coal Technology in Japan

      • Sadayuki Shinozaki

      Pages 85-103

   7. Factors Critically Affecting Fireside Deposits in Steam Generators

      • Richard W. Bryers

      Pages 105-131

3. Mineral Matter, Ash and Slag Characterisation

   1. Advanced Analytical Characterization of Coal Ashes—An Idemitsu Kosan—Elsam Cooperation Project

      • Ole Hede Larsen, Flemming J. Frandsen, Lone A. Hansen, Signe Vargas, Kim Dam-Johansen, Karin Laursen et al.

      Pages 133-145

   2. A Novel Application of CCSEM for Studying Agglomeration in Fluidised Bed Combustion

      • Mika E. Virtanen, Ritva E. A. Heikkinen, H. Tapio Patrikainen, Risto S. Laitinen, Bengt-Johan Skrifvars, Mikko Hupa

      Pages 147-154

   3. Thermomechanical Analysis and Alternative Ash Fusibility Temperatures

      • S. K. Gupta, R. P. Gupta, G. W. Bryant, L. Juniper, T. F. Wall

      Pages 155-169

   4. Ash Fusibility Detection Using Image Analysis

      • Klaus Hjuler

      Pages 171-179

   5. Ash Fusion Quantification by Means of Thermal Analysis

      • Lone A. Hansen, Flemming J. Frandsen, Kim Dam-Johansen

      Pages 181-193

   6. Sticking Mechanisms in Hot-Gas Filter Ashes

      • John P. Hurley, Bruce A. Dockter, Troy A. Roling, Jan W. Nowok

      Pages 195-204

   7. Classification System for Ash Deposits Based on Sem analyses

      • Karin Laursen, Flemming J. Frandsen

      Pages 205-216

   8. Determination of Amorphous Material in Peat Ash by X-ray Diffraction

      • Minna S. Tiainen, Juha S. Ryynänen, Juha T. Rantala, H. Tapio Patrikainen, Risto S. Laitinen

      Pages 217-224

   9. System Accuracy for CCSEM Analysis of Minerals in Coal

      • R. P. Gupta, L. Yan, E. M. Kennedy, T. F. Wall, M. Masson, K. Kerrison

      Pages 225-235

   10. The Microstructure and Mineral Content of Pulverised Coal Chars

       • F. Wigley, J. Williamson

       Pages 237-245

4. The Use of Low-rank and Low-grade Coals and Cofiring

   1. Fireside Considerations When Cofiring Biomass with Coal in PC Boilers

      • Allen L. Robinson, Larry L. Baxter, Gian Sclippa, Helle Junker, Karl E. Widell, Dave C. Dayton et al.

      Pages 247-258

   2. Summary of Recent Results Obtained from Using the Controlled Fluidised Bed Agglomeration Method

      • Marcus Öhman, Anders Nordin

      Pages 259-270

This book contains papers presented at the Engineering Foundation Conference on mineral matter in fuels held on November 2-7, 1997 in Kona, Hawaii. The conference is one of a continuing series that was initiated by the CEGB Mar- wood Engineering Laboratories in 1963. The conference was to be eventually organised by the Engineering Foundation as the need for multi-disciplinary work related to c- trolling ash effects in combustors became apparent. The conference covers both the science and the applications. The papers also present case histories, particularly for current fuel technologies, developments in advanced technologies for power generation and mathematical modelling of these processes. Developments since 1963 have been slow, but steady, due to the complexity of the chemical and physical processes involved. However, the research presented here displays great improvement in our understanding of the mechanisms by which mineral matter will influence fuel use. Steve Benson from EERC presented a review and current status of issues related to ash deposition in coal combustion and gasification. The application of new analytical tools, which have been detailed in the previous conferences, is presented. These include CCSEM, as well as new techniques for char- terising sintering of ash, such as TMA, image analysis, X-ray diffraction crystallography and thermal analysis. The new analytical techniques were extended to encompass widely differing fuels such as biomass. Ole H Larsen from ELSAM Denmark presented a review of these advanced techniques.

• coal
• combustion
• corrosion
• fuel
• power systems
• mineral resources

• CRC for Black Coal Utilisation, University of Newcastle, Australia

  R. P. Gupta, T. F. Wall

• Sandia National Laboratories, Livermore

  L. Baxter

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