Preliminary Program

EFFECTS OF COAL QUALITY ON POWER PLANT MANAGEMENT:
Ash Problems,
Management and Solutions

May 8 - 11, 2000
Park City Marriott Hotel
Park City, Utah

Conference Co-Chairs:
Arun Mehta
EPRI
Steve Benson
EERC/MTI

United Engineering Foundation, Inc.
Three Park Avenue, 27th Floor
New York, NY 10016-5902
Phone: 1-212-591-7836 -- Fax: 1-212-591-7441
engfnd@aol.com --- www.engfnd.org

Monday, May 8, 2000

16:00 - 18:00 Registration

18:00 - 19:00 Social Reception

19:00 - 20:30 Dinner & Welcome

20:30 - 21:30 Social Hour

Tuesday, May 9, 2000

07:00 - 08:15 Breakfast Buffet

08:30 - 08:45 Introductory Remarks
Arun Mehta, EPRI, Conference Co-Chair
Steve Benson, EERC/MTI, Conference Co-Chair

SESSION I:
ISSUES AND PROBLEMS ASSOCIATED WITH COAL USE

08:45 - 09:15 1. STRATEGIES FOR MANAGING CARBON IN FLY ASH
Robert Hurt1, Eric Suuberg, Yu-Ming Gao, and Arun Mehta2
1Division of Engineering, Brown University
2EPRI

09:15 - 09:45 2. PRE-COMBUSTION REMOVAL OF ASH-FORMING MINERALS
FROM COAL AT PULVERIZED COAL FIRED POWER PLANTS
R.R. Oder
EXPORTech Company, Inc.

09:45 - 10:15 3. CHAR DEVELOPMENT DURING PULVERISED COAL
COMBUSTION
F. Wigley
Imperial College of Science, Technology and Medicine

10:15 - 10:45 Coffee Break

10:45 - 11:15 4. ASH DEPOSITS IN ALL DIFFERENT TYPES OF BOILERS:
CFB, PC, PFB, GRATE
Rich Conn
Foster Wheeler

11:15 - 11:45 5. EFFECTS OF AMMONIA FROM NOX CONTROL ON COAL ASH
UTILIZATION
C. Lamar Larrimore
Southern Company

11:45 - 12:15 6. IMPACT OF MINERALS AND MACERALS IN COAL ON
THERMAL PERFORMANCE OF PC FIRED BOILERS
R.P. Gupta
University of Newcastle

12:15 - 13:30 Lunch

13:30 - 17:30 Ad hoc Sessions and/or Free Time

17:30 - 19:00 Dinner

SESSION II:
DESCRIPTION OF ASH RELATED PROBLEMS ASSOCIATED WITH COAL QUALITY

19:00 - 19:30 1. LOW-TEMPERATURE ASH DEPOSIT FORMATION AND
CORROSION IN BIOMASS-FIRED COMBINED HEAT AND POWER PRODUCTION BOILERS
Flemming J. Frandsen, Jørn Hansen, Peter A. Jensen, Kim Dam-Johansen
Department of Chemical Engineering, Technical University of Denmark

19:30 - 20:00 2. PREDICTIONS OF BOILER SLAGGING WITH INDIGENOUS AND
WORLD-TRADED COALS AT UK AND SPANISH POWER STATIONS
N.V. Russell
Imperial College of Science, Technology and Medicine

20:00 - 20:30 3. ASH, DEPOSIT AND CORROSION CHARACTERISTICS OF COAL-
BIOMASS BLENDS IN A 0.5 MW PULVERIZED FUEL TEST FACILITY
Timm Heinzel
IVD - Institute for Process Engineering and Power Plant Technology, University of Stuttgart

20:30 - 21:00 4. THE EFFECT OF COAL CO-COMBUSTED WITH BIOFUELS IN A
FBC-BOILER SUFFERING FROM PROBLEMS WITH SLAGGING, FOULING AND CORROSION IN THE SUPERHEATER AREA
Tor Laurén
Åbo Akademi University, Process Chemistry Group

21:00 - 21:30 5. BIOMASS COFIRING EXPERIENCE AT TVA
Randal Johnson1 and Evan Hughes2
1TVA
2EPRI

21:30 - 22:00 6. THE ASH DEPOSITION CHARACTERISTICS OF LOW ASH
CONTENT INDONESIAN COALS: RESULTS OF STUDIES ON A 1MW COMBUSTION TEST FACILITY
W.H. Gibb
PowerGen, Power Technology Department

22:00 - 23:00 Social Hour

Wednesday, May 10, 2000

07:00 - 08:15 Breakfast Buffet

SESSION III:
ASH DEPOSITION: MANAGEMENT AND SOLUTIONS

08:30 - 09:00 1. CURRENT APPROACHES TO SOLVING ASH DEPOSITION
PROBLEMS
Christopher J. Zygarlicke
Energy & Environmental Research Center

09:00 - 09:30 2. DYNAMIC BLENDING OF COALS TO MATCH OPERATING
CONDITIONS
Randhir Sehgal
Praxis Engineers, Inc.

09:30 - 10:00 3. PILOT-SCALE FURNACE SIMULATION TESTS TO ASSESS ASH
BEHAVIOR FOR A PARTICULAR STEAM COAL APPLICATION
Simon P. Hanson
CONSOL Inc.

10:00 - 10:30 Coffee Break

10:30 - 11:00 4. DEVELOPMENT OF A FOULING MONITOR AND ALARM
SOFTWARE
R.E. Thompson1, T.C. Fang1, and A. Hickinbotham2
1 Fossil Energy Research Corporation
2 TransAlta Utilities

11:00 - 11:30 5. FIRESIDE COAL QUALITY IMPACTS PREDICTED BY BOILER
SIMULATOR
Jim Chaney1, Larry Baxter2, and Arun Mehta3
1 AmerenCIPS
2 Sandia
3 EPRI

11:30 - 12:00 Discussion

12:00 - 13:30 Lunch

14:00 - 16:00 SESSION IV:
POSTER / DISCUSSION SESSION / DATA REVIEW / OPEN FORUM

  1. CHROMIUM SPECIATAION IN COMBUSTION ATMOSPHERES - A COMPARISON BETWEEN DIFFERENT CHEMICAL EQUILIBRIUM DATA AND EXPERIMENTAL MBMS RESULTS Anna Persson1, David C. Dayton2, Anders Nordin1 1Inorganic Chemistry, Umea University 2National Renewable Energy Laboratory
  2. TRACE ELEMENT BEHAVIOUR DURING CLEANING AND COMBUSTION AT A UK POWER STATION COAL F. Wigley Imperial College of Sciences, Technology and Medicine
  3. FLY ASH FORMATION AND DEPOSITION WITH SPANISH LOW RANK COALS AND BLENDS WITH BITUMINOUS COALS J. Ballester University of Zaragoza - LITEC
  4. A PREDICTION STUDY ON SLAGGING OF COAL ASH DURING COMBUSTION Jianrong Qiu, Fan Li, Quanhai Wang National Coal Combustion Laboratory, Huazhong University of Science and Technology, P.R. China
  5. POSSIBLE TECHNIQUE FOR THE REDUCTION OF FOULING IN BIOMASS COMBUSTION Revin Panray Beeharry1, T.Reg Bott2 1Department of Chemical and Sugar Engineering, Reguit, Maruitius 2School of Chemical Engineering, The University of Birmingham
  6. MATCHING COAL QUALITY AND BOILER OPERATIONS Steve Benson1, Karen Katrinak1, Jason Laumb1, Richard Schwalbe2, William Peterson3 1Microbam Technologies, Inc. 2 Minnkota Power Cooperative 3 BNI Coal
  7. SOME REMARKS ABOUT ASH VISCOSITY AND ITS USE IN SLAGGING MODELS Alexander N. Alekhnovich Ural Heat Engineering Institute
  8. A FRAMEWORK FOR SIMULATING THE EFFECTS OF SINTERING ON ASH DEPOSIT THERMAL CONDUCTIVITY Allen Robinson Carnegie Mellon University

Wednesday, May 10, 2000 (Continued)

  1. THE ORIGIN OF MINERALS IN A POWER PLANT SLAG Cathy A. Summers U.S. Department of Energy, Albany
  2. INVESTIGATION OF SUPERHEATER DEPOSITS FROM TWO FIRED BOILERS Peter Arendt Jensen Department of Chemical Engineering, Technical University of Denmark
  3. ASH AND DEPOSIT FORMATION IN THE BIOMASS CO-FIRED MASNEDØ COMBINED HEAT AND POWER PRODUCTION PLANT Flemming J. Frandsen1, Jørn Hansen1, Peter A. Jensen1, Kim Dam-Johansen1, Steffen Hørlyck2, and Asger Karlsson3 1Department of Chemical Engineering, Technical University of Denmark 2SK Power Company 3Elkfraft A.m.b.a.
  4. THE EFFECT OF CO-FIRING OF STRAW AND COAL ON HIGH TEMPERATURE CORROSION Melanie Montgomery Department of Manufacturing Engineering, Technical University of Denmark
  5. A TOOL FOR VISUALIZATION AND STATISTICAL ANALYSIS OF SEM-EDS DATA Mika Virtanen University of Oulu, Department of Chemistry
  6. THE ENHANCEMENT OF MINERAL CLASSIFICATION BY USE OF QUASITERNARY DIAGRAMS Minna Tiainen University of Oulu, Department of Chemistry
  7. CORRELATION OF FOULING AND SLAGGING CHARACTERISTICS WITH ORIGIN AND QUANTITATIVE MINERAL ASH CONSTITUENTS IN COALS OBTAINED AFTER LOW TEMPERATURE ASHING AND X-RAY DIFFRACTION ANALYSIS BY THE RIETVELD METHOD Gerard Platbrood, Willy Vanderelst Belgian Laboratory of the Electricity Industry

Wednesday, May 10, 2000 (Continued)

  1. ON FIRESIDE CORROSION IN COAL-FIRED BOILERS: (I) COAL CHLORINE CONTENT AND SUPERHEATER/REHEATER CORROSION K.K. Ho1, M.-I. M. Chou2, E.P. Doane3, S.C. Kung4 1Illinois Clean Coal Institute 2Illinois State Geological Survey 3Consultant 4Babcock USA
  2. SOME REMARKS ABOUT HIGH TEMPERATURE CHARACTERISTICS OF COAL ASH AND THEIR USE IN SLAGGING PREDICTION
    Alexander N. Alekhnovich
    Ural Heat Engineering Institute

16:000 - 17:30 Ad hoc Sessions and/or Free Time

17:30 - 19:00 Banquet

SESSION V:
CORROSION OF SYSTEM COMPONENTS

19:00 - 19:30 1. EFFECTS OF FUEL COMPOSITION AND COMBUSTION
PARAMETERS ON FURNACE CALL FIRESIDE CORROSION IN PF-FIRED BOILERS
Paul James1, Len Pender1, Arun Mehta2, Ian Wright3 1Power Technology, PowerGen
2EPRI
3Oak Ridge National Laboratories

19:30 - 20:00 2. THE EFFECT OF ASH DEPOSIT ON HIGH TEMPERATURE
CORROSION OF ALLOYS IN AN FBC SYSTEM
Wei-Ping Pan1, Kunlei Liu1, John T. Riley1, Arun Mehta2, and Ken Ho3
1Department of Chemistry, Western Kentucky University
2EPRI
3ICCI

20:00 - 20:30 3. EFFECT OF COAL SULFUR CHARACTERISTICS ON PREDICTED
FURNACE WATERWALL WASTAGE
James Valentine
Reaction Engineering International

20:30 - 21:00 4. CORROSION INVESTIGATIONS IN STRAW-FIRED POWER
PLANTS IN DENMARK
Melanie Montgomery
Department of Manufacturing Engineering, Technical University of Denmark

21:00 - 21:30 5. BENCH-SCALE MEASUREMENTS OF REFRACTORY CORROSION
BY FLOWING SLAG
John P. Hurley1, Patty L. Kleven1, and Will Sutton2
1University of North Dakota, Energy & Environmental Research Center
2 United Technologies Research Center

21:30 - 22:00 Discussion

22:00 - 23:00 Social Hour

Thursday, May 11, 2000

07:00 - 08:15 Breakfast Buffett

SESSION VI:
ASH IMPACTS ON ADVANCED SYSTEMS

08:30 - 09:00 1. PREDICTING THE ASH BEHAVIOUR OF DIFFERENT FUELS
IN FLUIDIZED BED COMBUSTION
Benght-Johan Skrifvars
Åbo Akademi University

09:00 - 09:30 STUDY OF THE MECHANISM OF COAL ASH DEPOSIT AND
GROWTH IN GASIFICATION: ANALYSIS OF ASH PARTICLES STICKING TENDENCIES ON A PARTICLE BY PARTICLE BASIS
K. Ichikawa
Central Research Institute of the Electric Power Industry (CRIEPI)

09:30 - 10:00 BED AGGLOMERATION IN FULL-SCALE FBC OF BIOMASS FUELS COATING BUILD UP, CHARACTERISTICS AND MEASURES FOR REDUCED BED MATERIAL COMSUMPTION
Marcus Öhman1, Anders Nordin2, Bengt-Johan Skrifvars2, Maria Zevenhoven2, Rainer Backman2
1Inorganic Chemistry, Umea University
2Åbo Akademi University

10:00 - 10:30 Coffee Break

10:30 - 11:00 EFFECTS OF HIGH ASH CONTENT IN COAL ON IGCC
PERFORMANCE
O.P. Rao
Council of Scientific & Industrial Research

11:00 - 11:30 COAL QUALITY IMPACTS ON ALKALI VAPOR EMMISSIONS FROM
PRESSURIZED FLUIDIZED BED COAL COMBUSTORS
Stephen Niksa
Niksa Energy Associates

11:30 - 12:00 ROLE OF QUARTZ SAND IN THE AGGLOMERATION DURING THE
FB COMBUSTION USING FUEL OF HIGH SODIUM CONTENT
Laura Nuutinen
University of Oulu, Department of Chemistry

12:00 - 12:30 Conference Wrap-Up

12:30 - 13:30 Lunch and Departure

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