Preliminary Program

IMPACT OF MINERAL IMPURITIES
IN SOLID FUEL COMBUSTION

November 2-7, 1997
Keauhou Beach Hotel,
Kona, Hawaii

Conference Chair:
Terry Wall
CRC for Black Coal Utilization
University of Newcastle, Australia

Conference Co-Chair:
Larry Baxter
Sandia National Laboratories
Livermore, California, USA

Engineering Foundation Conferences
345 East 47th Street
New York, NY 10017
T: 1-212-705-7836 - F: 1-212-705-7441
E: engfnd@aol.com - WWW: http://www.engfnd.org

General Comments
Times slots for the individual presentations have not yet been scheduled. When this information is ready, the program will be updated on this web site (http://www.engfnd.org).

  1. Morning sessions will be held from 8:30 am - 12 noon or 12:30 daily.
  2. There will be a coffee break each morning
  3. Lunch will be served after the morning session. Boxed lunches will be available on Friday.
  4. Afternoons are free for discussion or recreation.
  5. A poster session will be held Thursday from 4-6 pm.
  6. A luau will be held on Thurday evening.
  7. Dinner will be served at 6:00 pm on Sunday through Wednesday.
SESSION 1: NEW ISSUES AND DEVELOPMENTS IN FUEL MINERALS AND ASH MATTERS

The Application of CCSEM Techniques to Combustion Related Problems
F. Wigley & J. Williamson
Imperial College, UK

Deposit and Corrosion Problems Straw-Fired Utility Boilers
Flemming J. Frandsen, Hanne P. Nielsen, Peter A. Jensen, Kim Dam-Johansen
Ole H. Larsen, Bo Sander, Niels Henriksen & Peter Simonsen
University of Denmark

Analytical Characterisation of Coal Ashes-An Idemitsu Kosan-Elsam Cooperation Project
Ole H. Larsen, Flemming J. Frandsen, Lone A. Hansen, Kim Dam-Johansen,
Karin Laursen, Takeo Yamada, Tsuyoshi Teramae
ELSAM, Denmark

Advancing Technology for Predicting Fuel Quality Impacts - Do We Need To?
Clark D. Harrison
CQ, Inc., USA

Modeling of Ash Deposit Growth in a Coal-Fired Pilot-Scale Combustor
H. Wang & J. Harb
Brigham Young University, USA

Ash-Related Issues During Combustion and Gasification
Steve Benson
University of North Dakota, USA

Fireside Considerations when Co-firing Biomass with Coal in PC Boilers
Larry Baxter, Allen Robinson, Helle Junker, Karl Erik Widell, James Ekmann, Mark Freeman
Sandia National Laboratories, USA

Summary of Recent Results using the New Fluid Bed Agglomeration Facility
Marcus Ohman and Anders Nordin
Umea University, SWEDEN

SESSION 2: MINERAL MATTER, ASH AND SLAG CHARACTERISATION

A Novel Approach to Use CCSEM when Studying Agglomeration in Fluidised Bed Combustion
Mika E. Virtnen, Bengt-Johan Skrifvars, Ritva E. A. Heikkinen, Mikko Hupa, Tapio
Patrikainen, Risto Laitinen
University of Oulu, FINLAND

Thermomechanical Analysis and Alternative Ash Fusibility Temperatures
S. K. Gupta, R.P. Gupta, Bryant L. Juniper, T. F. Wall
CRC for Black Coal Utilisation, AUSTRALIA

QEM & SEM
Paul Gottlieb
CSIRO, Australia

Mineral Characterisation for Combustion: The Contribution from the Geological Sciences
C. Ward & Bob Creelman
R. A. Creelman & Associates, AUSTRALIA

Ash Fusibility Detection Using Image Analysis
Klaus Hjuler
dk-TEKNIK Energy & Environment, DENMARK

SESSION 3: THE USE OF LOW-RANK AND LOW-GRADE COALS, COAL SWITCHING
AND BLENDING

Changes in Slagging Behaviour with Composition for Blended Coals
N.J. Manton, G. S. Riley & J. Williamson
Imperial College, UK

The Development of Power Technologies for Low-Grade Coal
K. Basu
Bharat Heavy Electricals, Ltd., INDIA

Low-Rank Coal and Advanced Technologies for Power
P. Jackson & D-K Zhang
Power Generation CRC, AUSTRALIA

Role of Inorganics During Fluidised-Bed Combustion of Low-Rank Coals
H. B. Vuthaluru & D-K Zhang
Power Generation CRC Australia

Volatilization of Metal Cations During the Pyrolysis of Low-Rank Coals
Bo Pang, Chirag Sathe & Chun-Zhu Li
Power Generation CRC, Australia

Role of the Additives in controlling Agglomeration and Defluidisation During Fluidised-Bed Combustion of High-Sodium, High-Sulphur Low-Rank Coal
A. Manzoori & T. Linjewille
CSIRO, AUSTRALIA

SESSION 4: CASE STUDIES IN CONVENTIONAL AND ADVANCED PLANT

Development of Blast-Furnace Gas Firing Burner for Cofiring Boilers with Pulverized Coal
Takashi Kiga, Takehiko Ito, Motoya Nakamura & Shinji Watanabe
IHI Co., Ltd., JAPAN

Predicting the Melting Behavior of Superheater Deposits in Boilers During Biomasses
Rainer Backman & Mikko Hupa
Abo Akademi University, FINLAND

The Effect of Operating Conditions on Fly Ash Characteristics in Kraft Recovery Boilers
Pirita Mikkanen, Esko I. Kaupinen & Jorma K. Jokiniemi
VTT Chemical Technology, FINLAND

Slagging Tests on the Suitability of Alternative Coals in a 325 MWel PFC Boiler
T. Heinzel, J. Maier, H. Spliethoff & K.R.G. Hein
University of Stuttgart, GERMANY

Ash Deposition Trials at Three Power Stations in Denmark
Karin Larssen, Flemming J. Frandsen & Ole Hede Larsen
Geological Survey of Denmark &
Greenland, DENMARK

Full Scale Deposition Trials at 150 MWe PF-Boiler Co-Firing Coal and Straw: Classification of Deposits
K.H. Andersen, F. J. Frandsen, P.F.B. Hansen, & K. Dam-Johansen
MIDTKRAFT, DENMARK

Deposit Formation in the Convection Path of a Danish 80 MWth CFB-Boiler Co-Firing Straw and Coal for Power Generation
Peter F. Binderup-Hansen
MIDTKRAFT, DENMARK

The Fate of Inorganic Constituents of Biomass in Fluidized Bed Gasification
Scott O.. Turn, Charles M. Kinoshito, Darren M. Ishimura & Jiachun Zhou
Hawaii Natural Energy Institute, USA

SESSION 5: HEAT TRANSFER ISSUES

The Thermal Conductivity of Ash Deposits: Particulate and Slag Structures
R. P. Gupta & T. F. Wall
CRC for Black Coal Utilisation, AUSTRALIA;
L. Baxter
Sandia National Laboratories, USA

Unburnt Char: Radiative Properties and Effects on Radiative Heat Transfer in Pulverized Coal Furnaces
Zhaohui Liu, Huawei Xing Yingbao Zhou & Chuguang Zheng
NLCC, CHINA

In Situ Measurements of the Thermal Conductivity of Ash Deposits Formed in a Pilot-Scale Combustor
Allen L. Robinson, Steven G. Buckley, Gian Sclippa & Larry L. Baxter
Sandia National Laboratories, USA

SESSION 6: STUDIES AT rig SCALE (INCLUDING CORROSION)

Successful Operation of Pressurized Internally Circulating Fluidized Bed Boiler (PICFB) 4MWth Hot Model
Shugo Hosoda, Seiichiro Toyoda, Nobutaka Kashima, Katsutoshi Narusie, Norihisa
Miyoshi & Shuichi Nagato
EBARA Corporation, JAPAN

The Effects of Trace Metals on Fireside Corrosion in Coal and Waste Fired Plant
G. E. Moores & B. M. Gibbs
University of Leeds, UK

Corrosion of Silicon Based Ceramic Materials by Pulverized Coal Ash
G. B. Moores, B. M. Gibbs & B. Nath
University of Birmingham, UK

The Role of Alkali Sulfates and Chlorides in Post Cyclone Deposits from Circulating Fluidized Bed Boilers Firing Biomass and Coal
Bengt-Johan Skrifvars, Tor Lauren, Rainer Backman, Mikko Hupa
Abo Akademi, FINLAND;
Peter Binderup-Hansen
MIDTKRAFT, DENMARK

Laboratory Studies on the Influence of Gaseous HCI on Superheater Corrosion
Keijo Salmenoja, Mikko Hupa & Rainer Backman
Kvaerner Pulping Oy, FINLAND

Fly Ash Deposition onto the Convective Heat Exchangers during CFBC of Willow
Terttaliisa Lind, Esko I. Kauppinen, George Sfiris & Willy Maenhaut
VTT Chemical Technology, FINLAND

Ash Behaviour in Biomass Fluidised Gasification
Antero Moilanen, Esa Kurkela & Jaana Laatikainen-Luntama
VTT Energy, Aerosol Group, FINLAND

Mechanisms of Deposit Formation when Co-Firing Coals and Biofuels
Helle Junker, Larry Baxter, Allen Robinson & Karl Erik Widell
Elsamprojekt A/S, DENMARK

Low Corrosivity of Coal Chlorine
Elliott P. Doune
Kerr-McGee Coal Corporation;
Murray F. Abbott
CONSOL, Inc.

Bench-Scale Biomass/Coal Cofiring Studies
Dierdre A. Belle-Oudry & David C. Dayton
National Renewable Energy Laboratory, USA

SESSION 7: DEVELOPMENTS IN ADVANCED COAL TECHNOLOGIES

The Development of Advanced Clean Coal Technology in Japan: Mineral Matter Issues
Sadayuki Shinozaki
CCW, JAPAN

Distributions of Major and Trace Elements in Entrained Slagging Coal Gasification Process
Kenichi Fujii, Tadoshi Suda, Tadayoshi Muramatsu & Masahiro Hara
Kawasaki Heavy Industries, JAPAN

Operation Results of Wakamatsu PFBC Plant
Takeo Hirai & Hideki Goto
Electric Power Development Company, JAPAN

Fractionated Heavy Metal Separation in Biomass Combustion Plants-Possibilities,
Technological Approach, Experiences
Ingwald Obernberger & Friedrich Biedermann
University of Gras, AUSTRIA

Predicting Ash Behavior in Conventional and Advanced Power Systems: Putting Models to Work
Christopher J. Zygarlicke
EERC, USA

Hot Gas Filler Ash Characterization
John Hurley, Bruce Deckter, Troy Roling, Sean Allan, Vit Kultnel & Mike Swanson
EERC, USA

SESSION 8: MECHANISM AND MATHEMATICAL MODELING

Behavior of Inorganic Materials During Pulverized Coal Combustion
Tsuyoshi Teramae & Toru Yamashita
Idemitsu Kosan Co., Ltd., JAPAN

Modeling the Impact of the Burner Arrangement on Pulverized Coal-Fired Boiler Slagging
Jouni Pyykonen, Jorma Jokiniemi & Tommy Jacobson
VTT Energy, FINLAND

Thermodynamic Modeling of the System A1203-Si02-CaO-FeO-Fe203 to Characterize Coal Ash Slags
Evgueni Jak, Sergel Degterov, Arthur D. Pelton, Jim Happ & Peter C. Hayes
CRC for Black Coal Utilisation, AUSTRALIA

The Critical Requirements in Anticipating Ash Deposition Problems in Boilers
Richard W. Bryers, Consultant, USA

Viscosity Modeling of Coal Ash Slag Using Neural Networks
B. C. Folkedahl & H. H. Schober
EERC, USA

Chemistry of the Combustion of Biomass-A Round Robin Set of Calculations Using Available Computer Programs
Milton Blander, T. Milne, D. Dayton, R. Backmann, D. Blake, Y. Kuhnel, W. Link, M. Mann &
A. Nordin
QUEST Research, USA

POSTER SESSION

Development of an Innovative Fluidized Bed Cement Kiln System
Sadayuki Shinozaki, Isao Hashimoto & Katsuji Muka
Japan Cement Association, JAPAN

Development of a PFBC
T. Hirai, H. Tsuboya & M. Takai
Electric Power Development Company, JAPAN

Mineral Matter Transformations in PF-Combustion and Entrained-Flow Gasification
A. Bos, S. Eenkhoorn & J.H.A. Kiel
ECN, NETHERLANDS

Prognosis of Slagging and Fouling Properties of Coals Based on Widely Available Data and Results of Additional Measurements
A.N. Alekhnovich, N. V. Artemjeva, V. V. Bogomolov, V. I. Shchelokov, B.G. Petuhov
Ural Heat Engineering Institute, RUSSIA

The Slagging Behaviour of Coal Blends in the Pilot-Scale Combustion Test Facility
V.V. Bogomolov, N. V. Artemjeva & A. N. Alekhnovich, V.E. Gladkov
Ural Heat Engineering Institute, RUSSIA

A Comparison of Mineral Fouling Propensity of Three Coals Using a Pilot Scale Under-Fed Stoker Combustor
A. F. Skan, T.R. Bott & S. A. Beltagui
University of Birmingham, UK

Triboelectrostatic Coal Cleaning: Mineral Matter Rejection In-Line Between Pulverizers and Burners at a Utility
John M. Stencel, John L. Schaefer, Heng Ban, Tian Xiang Li & James K. Neathery
University of Kentucky, USA

The Influence of Pressure on the Behavior of Fuel Carbonates
Arvo Ots, Tonu Pihu & Aleksandr Hlebnikov
Tallinn Technical University, ESTONIA

The Agglomeration in the Fluidized Bed Boiler during the Co-Combustion of Biomass with Peat
Ritva E. A. Heikkinen, Mika E. Virtanen, Tapio Patrikainen & Risto S. Laitinen
University of Oulu, FINLAND

Determination of Amorphous Material in Pent Ash by X-Ray Powder Diffraction Crystallography
Minna Tiainen, Juna Ryynanen, Jula Rantala, Tapio Patrikainen & Risto S. Laitinen,
University of Oulu, FINLAND

Computational Fluid Dynamics Based Studies on Deposition Rates
Jouni Pyykonen & Jorma Jokiniemi
VTT Energy, FINLAND

Benefication of Indian Coals: Its Relevance to Thermal Power Generation
P. Selvakumaran & K. Ramachandra
Bharat Heavy Electricals, Inc., INDIA

Impact of Mineral Matter on the Combustion of Inferior Grade Coals
O.P. Rao
Council of Scientific & Industrial Research, INDIA

Digital Imaging Techniques Applied to FeS2 Recognition and Characterisation in Coal Ore
Michele Agus, Giuseppe Bonifazi & Paolo Massacci
Consiglio Nazionale Delle Ricerche, ITALY

Investigation of the High Temperature Behavior of Siderlic Grains During Combustion
Gary Bryant, Christopher Bailey, Hongwei Wu, Angus McLennon, Rajender Gupta, Brian
Sunmore, John Patterson & Terry Wall
CRC for Black Coal Utilisation, AUSTRALIA
CCSEM Roundrobin
R. P. Gupta, Kennedy, Li, Masson, Kerrison & T. F. Wal
CRC for Black Coal Utilisation, AUSTRALIA

Modeling the Initial Structure of Ash Depositions and Structure Changes Due to Sintering
H.R. Razael, R. P. Gupta, T. F. Wall, S. Miyamae & K. Mukino, CRC for Black Coal Utilisation,
AUSTRALIA

Effect of Pre-Treatment on Agglomeration and Defluidization under Fluidised-Bed Combustion Conditions
H.B. Vutluuluru & D. K. Zhang, CRC, AUSTRALIA

Retention of Sulphur by Ashes from Chinese Coals
Changdong Sheng, Jun Zhang & Yiqian Xu
Southeast University, CHINA

Research on Melting Points of Some Chinese Coal Ashes
Shen Xianglin, Chen Yin & Liu Haibin
Southeast University, CHINA

The Influences of Ash with Different Minerals on Desulphurization Performance
Wu Yingha, Huang Zheng & Li Daji
Southeast University, CHINA

Ash Fusion Quantification by Use of Thermal Analysis
L. A. Hansen, F. J. Frandsen & K. Dam-Johansen
University of Denmark, DENMARK

Ash Fusion and Deposit Formation at Straw Fired Boilers
L. A. Hansen, F. J. Frandsen, K. Dam-Johansen, H. s. Sorense, P. Rosenberg & K. Hjuler,
University of Denmark, DENMARK

Classification System for Ash Deposits Based on SEM Analysis
Karin Laarsen & Flemming J. Frandsen
Geological Survey of Denmark and Greenland, DENMARK

Computer Controlled Scanning Electron Microscopy (CCSEM) of Straw Ash
Henning Sund Sorensen
Geological Survey of Denmark and Greeland, DENMARK

Full Scale Deposition Trials at 150M Wc PF-Boiler Co-Firing Coal and Straw: Classification of Deposits
K.H. Andersen, F. J. Frandsen, P.F.B. Hansen & K. Dam-Johansen
MIDTKRAFT, DENMARK

Mineral Matter Effects on Char Structural Evolution and Oxidation Kinetics During Coal Char Combustion
Melissa Lunden, Nancy Yang, Tom Heudley & Chris Shaddix
Sandia National Laboratories, USA

Reactions of Sodium with Silica and Knolin During Gasification of Ligalites
A. Kosminski, A. Manzoori & J. B. Agnew
CRC, AUSTRALIA

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