Technical Papers

Authors: Samit J. Pethe, Paul W. Cloninger, Ryan R. Shortreed, and Ken M. Hardison
Presented: 2020 TAPPI Peers Conference (TAPPI), Nov. 2-3; (held virtually)
Ref. No.: TP2020A

• PDF – 2020 Boiler Retrofit Improves Efficiency and Increases Biomass Firing Rates (190kb)

Authors: J. Stephen Campbell, Jr., P.E., Matthew A. Henderson, P.E., Marcel D. Berz, P.E., and Blair Rydberg, P.Eng.
Presented: 2019 TAPPI Peers Conference (TAPPI), Oct. 27-30; St. Louis, Missouri, USA
Ref. No.: TP2019B

• PDF – 2019 Combustion System Upgrade on CKPI’s Biomass-Fired Boiler (141kb)

Authors: Samit J. Pethe, Michael L. Britt, P.E., Ryan G. Tebbetts, P.E., Mark C. Frasca, and Timothy J. Porter
Presented: 2019 27th European Biomass Conference and Exhibition (EUBCE), May 27-30; Lisbon, Portugal
Ref. No.: TP2019A

• PDF – 2019 Multi-Fuel Boiler Combustion System Upgrade and Controls Optimization (145kb)

Authors: Marcel D. Berz, P.E., John F. La Fond, P.E., and Stefan Bjornsson
Presented: 2018 TAPPI Peers Conference (TAPPI), Oct. 28-31; Portland, Oregon, USA
Ref. No.: TP2018A

• PDF – 2018 Factors Impacting CO and NOx Emissions on Biomass-Fired Stoker Boilers (133kb)

Authors: Marcel D. Berz, P.E., J. Stephen Campbell, Jr., P.E., Moriel A. Arango, and John F. La Fond, P.E.
Presented: 2017 TAPPI Peers Conference (TAPPI), Nov. 5-8; Norfolk, Virginia, USA
Ref. No.: TP2017C

• PDF – 2017 Plant and Boiler Energy Efficiency Evaluations (135kb)

Author: Allan R. Walsh, Ph.D.
Presented: 2017 International Chemical Recovery Conference (ICRC), May 24-26; Halifax, Nova Scotia, Canada
Ref. No.: TP2017A

• PDF – 2017 CFD Modeling of Black Liquor Spray Nozzles (125kb)

Author: Allan R. Walsh, Ph.D.
Presented: 2017 International Chemical Recovery Conference (ICRC), May 24-26; Halifax, Nova Scotia, Canada
Ref. No.: TP2017B

• PDF – 2017 A Flamed Based Approach for Modeling NOx Emissions from Recovery Boilers (139kb)

Authors: Samit J. Pethe, Paul W. Cloninger, Ted L. Friedrich, and Kevin C. Scott
Presented: 2016 TAPPI PEERS Conference, September 25-28; Jacksonville, Florida
Ref. No.: TP2016A

• PDF – 2016 Port Townsend Paper’s Boiler MACT Success Story – Part I: Combustion System Upgrade (133kb)

Author: Arie Verloop, P.E.
Presented: 2014 TAPPI Kraft Recovery Course (KROS), January 7-10; St. Petersburg, Florida
Ref. No.: TP2014A

• PDF – 2014 Biomass Combustion Principles and Boiler Optimization (18kb)

Authors: Samit J. Pethe, Chris R. Dayton, P.E., Robert Bastianelli, and Luke Schwartz
Presented: 2013 CIBO Fluid Bed & Stoker Fired Boiler Operations and Performance Conference, May 20-22; Louisville, Kentucky
Ref. No.: TP2013B

• PDF – 2013 Biomass Replaces Coal at the Hibbard Power Generation Facility (29kb)

Author: Arie Verloop, P.E.
Presented: 2013 TAPPI Kraft Recovery Course (KROS), January 7-10; St. Petersburg, Florida
Ref. No.: TP2013A

• PDF – 2013 Biomass Combustion Principles and Boiler Optimization (130kb)

Author: Arie Verloop, P.E.
Published: June 2012 Issue of Bioenergy Insight Magazine, p. 56-58
Ref. No.: TP2012C

• PDF – 2012 Biomass Combustion Troubleshooting (20kb)

Author: Arie Verloop, P.E.
Presented: 2012 TAPPI Kraft Recovery Course (KROS), January 9-12; St. Petersburg, Florida
Ref. No.: TP2012B

• PDF – 2012 Biomass Combustion Principles and Boiler Optimization (19kb)

Authors: Samit J. Pethe, Michael L. Britt, P.E., and Scott A. Morrison
Presented: 2012 NAWTEC20, April 23-25; Portland, Maine
Ref. No.: TP2012A

• PDF – 2012 CO Emission Improvements from Combustion System Upgrades at the Wheelabrator Portsmouth RDF Plant (30kb)

Authors: John F. La Fond, Marcel D. Berz, Samit J. Pethe, and Arie Verloop
Presented: 2011 Tappi Engineering, Pulp & Environmental Conference
Ref. No.: TP2011B

• PDF – 2011 Superheater Modifications and Boiler Upgrades to Maximize In-House Power Generation (20kb)

Author: Arie Verloop
Presented: 2011 Tappi Kraft Recovery Course
Ref. No.: TP2011A

• PDF – 2011 Biomass Combustion Principles and Boiler Optimization (19kb)

Author: Arie Verloop
Published: Jan./Febr. 2010 Issue of CanadianBIOMASS Magazine, p. 20-22.
Ref. No.: TP2010D

• PDF – 2010 Combustion Troubleshooting – (20kb)

Author: Allan Walsh
Presented: 2010 International Chemical Recovery Boiler Conference (IChRC); March 29-31, Williamsburg, Virginia.
Ref. No.: TP2010C

• PDF – 2010 Investigation of Dissolved Gases in Smelt (20kb)

Authors: Allan Walsh, Marcel Berz, and Steve Campbell
Presented: 2010 International Chemical Recovery Boiler Conference (IChRC); March 29-31, Williamsburg, Virginia.
Ref. No.: TP2010B

• PDF – 2010 Evaluation of Water Flow in Floor Tubes of Recovery Boilers with a Decanting Hearth (20kb)

Authors: Allan Walsh, Lee Kingma, Joel Young, and Uday Bhagwat
Presented: 2010 International Chemical Recovery Boiler Conference (IChRC); March 29-31, Williamsburg, Virginia.
Ref. No.: TP2010A

• PDF – 2010 Evaluation of Superheater Corrosion in a Recovery Boiler (19kb)

Authors: Samit J. Pethe, Chris Dayton, P.E., Marcel D. Berz, P.E., and Tim Peterson
Presented: 2009 NAWTEC 17, 17th Annual North American Waste-to-Energy Conference
Ref. No.: TP2009A

• PDF – 2009 Elements of a Successful Waste-to-Energy Boiler Upgrade (19kb)

Authors: Marcel D. Berz, P.E., John F. La Fond, P.E., and Samit J. Pethe
Presented: 2008 TAPPI Engineering, Pulping & Environmental Conference
Ref. No.: TP2008A

• PDF – 2008 Boiler Upgrades to Increase In-House Power Generation (16kb)

Authors: Allan R. Walsh, Ph.D.
Presented: 2007 TAPPI Engineering, Pulping & Environmental Conference
Ref. No.: TP2007A

• PDF – 2007 Optimizing CO and NOx Emissions from Hog Fuel Boilers (13kb)

Authors: Allan R. Walsh, Ph.D.
Presented: 7th European Conference on Industrial Furnaces and Boilers (INFUB), Porto, Portugal.
Ref. No.: TP2006A

• PDF – 2006 CFD Modeling of Waste-Fuel Boiler Combustion Systems (105kb)

Authors: Marcel D. Berz, Michael L. Britt, John F. La Fond, Leo Lakowski, Russ Anderson, and Ron Richter
Presented: 2003 NAWTEC 11 Conference
Ref. No.: TP2003A

• PDF – 2003 Power Generation and Superheater Upgrade Project at the Burnaby MSW Plant (137kb)

Authors: Arie Verloop, Edward “Ned” C. Dye, and Gordon Homer
Presented: 2001 TAPPI Engineering Conference
Ref. No.: TP2001C

• PDF – 2001 Concept Description and Safety Considerations for the Application of Oxygen Enriched Air (OEA) Technology in Recovery Boilers (138kb)

Authors: Allan R. Walsh
Presented: 2001 TAPPI Engineering Conference
Ref. No.: TP2001B

• PDF – 2001 CFD Modeling of Combustion Air Systems for Wood-Fired Boilers (132kb)

Authors: Allan R. Walsh and Marcel D. Berz
Presented: 2001 TAPPI Engineering Conference
Ref. No.: TP2001A

• PDF – 2001 The Use of Ultrasonic Flow Monitoring for Analyzing Recovery Boiler Circulation (135kb)

Authors: Allan R. Walsh, Chris R. Dayton, and J. Anthony Averett
Presented: 2000 TAPPI Engineering Conference
Ref. No.: TP2000A

• PDF – 2000 Elements of a Successful Bark Boiler Upgrade (165kb)

Authors: Allan R. Walsh
Presented: 1998 TAPPI Pacific Section Seminar
Ref. No.: TP1998B

• PDF – 1998 Ten Years Experience with CFD Modeling of Recovery Boilers (133kb)

Authors: Allan R. Walsh
Presented: 1998 Fall BLRBAC Meeting
Ref. No.: TP1998A

• PDF – 1998 Ten Years Experience with CFD Modeling of Recovery Boilers (146kb)

Authors: Allan R. Walsh, John F. La Fond, and Arie Verloop
Presented: 1997 SCP Symposium, Ruzomberok, Slovakia
1999 International Seminar on Recovery Boilers, Ruzomberok, Slovakia
Ref. No.: TP1997C

• PDF – 1997 How to Detect and Eliminate Limitations in Recovery Boiler Capacity (148kb)

Authors: John F. La Fond, David Krygsveld, Jim Heimrich, and Allan Cameron
Presented: 1997 TAPPI Engineering Conference
Ref. No.: TP1997B

• PDF – 1997 Secondary Sludge Disposal by Burning in Recovery Boilers (144kb)

Authors: Allan R. Walsh, Arie Verloop, and Marcel Berz
Presented: 1997 TAPPI Engineering Conference
Ref. No.: TP1997A

• PDF – 1997 Recovery Boiler Circulation Analyses (129kb)

Authors: Allan R. Walsh, John F. La Fond, Michael Fornetti, and Tim LeGault
Presented: 1996 TAPPI Engineering Conference
TAPPI Journal, Vol. 81, No. 9, September 1998
Ref. No.: TP1996A

• PDF – 1996 Optimization of Combustion Air Delivery at Mead, Escanaba (134kb)

Authors: Arie Verloop and Johan H. Jansen
Presented: 1995 International Chemical Recovery Conference
Ref. No.: TP1995A

• PDF – 1995 Operating a Recovery Boiler at Reduced Solids Throughput; Downsizing Creates New Challenges (138kb)

Authors: John F. La Fond, David C. Keathley, Darrell Lantz, and Larry Ritter
Presented: 1994 TAPPI Engineering Conference
Ref. No.: TP1994A

• PDF – 1994 Combustion of Clarifier Underflow Solids in a Hog Fuel Boiler with a New High Energy Air System (143kb)

Authors: Allan R. Walsh, John F. La Fond, and Arie Verloop
Presented: 1993, 1994, and 1995 TAPPI Short Course, Orlando
Ref. No.: TP1993C

• PDF – 1993 How to Detect and Eliminate Limitations in Recovery Boiler Capacity (132kb)

Authors: John F. La Fond, Johan H. Jansen, and Perry Eide
Presented: 1993 TAPPI Engineering Conference
1993 Pacific Paper Expo, Vancouver, British Columbia
TAPPI Journal, Vol. 77, No. 12, December 1994
Ref. No.: TP1993B

• PDF -1993 Upgraded Recovery Boiler Meets Low Air Emissions Standards (137kb)

Authors: Allan R. Walsh, Arie Verloop, and John F. La Fond
Presented: TAPPI Journal, Vol. 76, No. 6, June 1993
Ref. No.: TP1993A

• PDF – 1993 Thermal Analysis of Recovery Boiler Deposits (135kb)

Authors: Arie Verloop and Waudean S. Thomas
Presented: 1992 Spring BLRBAC Meeting
TAPPI Journal, Vol. 75, No.11, November 1992
Ref. No.: TP1992D

• PDF – 1992 Operator Skill Booster/Boiler Wise Guy (139kb)

Authors: John F. La Fond, Arie Verloop, and Johan H. Jansen
Presented: 1992 TAPPI Engineering Conference
TAPPI Journal, Vol. 76, No. 9, September 1993
Ref. No.: TP1992C

• PDF – 1992 Recovery Boiler Fireside Capacity: An Update of Theory and Practice (131kb)

Authors: Allan R. Walsh and Olof H. Strandell
Presented: 1992 International Chemical Recovery Conference
Ref. No.: TP1992B

• PDF – 1992 Use of Design and Operating Data to Determine Recovery Boiler Upgrade Potential (135kb)

Authors: John F. La Fond, Arie Verloop, and Johan H. Jansen
Presented: 1992 TAPPI Kraft Recovery Operations Short Course
Ref. No.: TP1992A

• PDF – 1992 Recovery Boiler Capacity Upgrade Through Improved Combustion (131kb)

Authors: Allan R. Walsh, Waudean S. Thomas, and Johan H. Jansen
Presented: TAPPI Journal, Vol. 74, No. 12, December 1991
Ref. No.: TP1991B

• PDF – 1991 Power Boiler Tutor (PBT) Simulates Boiler Operation (134kb)

Authors: John F. La Fond, Arie Verloop, and Allan R. Walsh
Presented: 1991 TAPPI Engineering Conference
TAPPI Journal, Vol. 75, No. 6, June 1992
1994 Inter Joint Power Generation Conference, Phoenix, Arizona
Ref. No.: TP1991A

• PDF – 1991 Engineering Analysis of Recovery Boiler Superheater Corrosion (142kb)

Authors: Tim W. Sonnichsen
Presented: 1990 TAPPI Kraft Recovery Operations Short Course
Ref. No.: TP1990B

• PDF – 1990 Water Circulation in Recovery Boilers (130kb)

Authors: John S. Elliott, Johan H. Jansen, and Arie Verloop
Presented: 1990 Pacific Paper Expo Technical Conference
Ref. No.: TP1990A

• PDF – 1990 Recovery Boiler Upgrades in Western Canada (132kb)

Authors: Tim W. Sonnichsen, Arie Verloop, Grant Danielson, and Neil Risebrough
Presented: Corrosion 1989, Annual Convention NACE
Ref. No.: TP1989C

• PDF – 1989 Analysis of the Causes of Superheater Tube Metal Loss and Failures on an Eighteen Month Old Recovery Boiler (134kb)

Authors: Arie Verloop, Tim W. Sonnichsen, and Olof H. Strandell
Presented: 1989 TAPPI Engineering Conference
TAPPI Journal, Vol. 73, No. 3, March 1990
Ref. No.: TP1989B

• PDF – 1989 An Overview of Recovery Boiler Performance Evaluations (140kb)

Authors: Arie Verloop, Johan H. Jansen, and Don E. Danroth
Presented: 1989 International Chemical Recovery Conference
Pulp and Paper Canada 91:4 (April 1990)
Ref. No.: TP1989A

• PDF – 1989 Capacity Upgrade of a 1965 B&W Recovery Boiler Through the Installation of a New Overbed Air System (157kb)

Authors: Arie Verloop, Tim W. Sonnichsen, and Johan H. Jansen
Presented: 1988 TAPPI Engineering Conference
Ref. No.: TP1988A

• PDF – 1988 Increase of Recovery Boiler Burning Capacity Through Installation of an Improved Overbed Air System (133kb)

Authors: Beverly Woolff, Darrell Blegen, Johan H. Jansen, and Arie Verloop
Presented: COINS Technical report 86-24, Computer and Information Science Artificial Intelligence and Education, Volume 1, Ablex Publishing, 1987
Ref. No.: TP1986B

• PDF – 1986 Teaching a Complex Industrial Process (132kb)

Authors: Johan H. Jansen, Arie Verloop, and Darrell Blegen
Presented: 1986 TAPPI Engineering Conference
1988 TAPPI Kraft Recovery Operations Short Course
Ref. No.: TP1986A

• PDF – 1986 Recovery Boiler Tutor (RBT) An Interactive Simulation and Training Aid (144kb)

Authors: Tim W. Sonnichsen, Arie Verloop, and Johan H. Jansen
Presented: 1985 TAPPI Engineering Conference, Atlanta, Georgia
Ref. No.: TP1985B

• PDF – 1985 The Use of Dry Sorbent Injection for SO2 Emission Control of Coal-Fired Boilers and the Potential Reuse of the Waste Chemicals in the Kraft Recovery Cycle (138kb)

Authors: Johan H. Jansen and David T. Clay
Presented: 1984 TAPPI Engineering Conference
TAPPI Journal, Vol. 68, No. 4, April 1985
Ref. No.: TP1985A

• PDF – 1985 Results of the Kraft Recovery Boiler Inspection and Audit Survey (134kb)

Authors: Johan H. Jansen and Arie Verloop
Presented: 1983 TAPPI Engineering Conference, Dallas, Texas
Ref. No.: TP1983A

• PDF – 1983 Effects of Operating Variables on Recovery Boiler Economics (131kb)

Authors: Arie Verloop
Presented: TAPPI Pacific Section Shibley Award Contest, March 16, 1982
Ref. No.: TP1982B

• PDF – 1982 Results of Reviewing Recausticizing Systems in Kraft Pulp Mills and the Effect of Performance on Assignable Operating Costs (134kb)

Authors: Johan H. Jansen, Buck H. Haskell, and James Graff
Presented: 1982 International Sulfite Pulping Conference
Ref. No.: TP1982A

• PDF – 1982 Conversion of the Conventional Boiler into Recovery Boiler at Tembec (132kb)