Energy, Recovery, Lime Kiln and Recaust (ERLR)
The chemical recovery cycle makes kraft pulping economically feasible. Key unit operations including the recovery boiler, recaust plant, lime kiln and power generation have significant impacts on maintaining high mill production rates. The purpose of this year’s sessions and panels are to provide experiences from industrial and academic experts on equipment maintenance, process chemistry and new technologies.
The ERLR track will provide participants with both fundamental and practical knowledge on key process areas in a mill, including evaporators, recovery boiler, recaust plant, lime kiln and energy generation. Topics are focused on maximizing the efficiency and throughput of the recovery cycle. Participants can also attend panels for in depth discussions with industry experts.
Learning outcomes: After successfully completing the sessions in this track, participants will be able to go back to their workplace and:
- Gain fundamental and practical knowledge for key unit operations in the recovery cycle.
- Apply learning at participants’ mill site to gain improvements in process operability, reduce variability, minimize downtime and improve safety.
- Introduced to best practice and new technologies in the recovery cycle.
Demonstration of learning outcomes: After attending the ERLR presentation sessions attendees will have a better understanding of how to implement:
- Gain familiarity with online analyzers to improve recovery boiler operation by measuring black liquor properties while also assessing combustion byproducts.
- Better understanding of equipment associated with recovery boiler operation to maximize liquor throughput, increase uptime and increase the longevity of the equipment.
- Increased knowledge in lime kiln operation, design and maintenance to optimize day to day operation and troubleshoot common issues such as ringing and mud balls.
- Better understanding of the software available to improve evaporator design, reduce fouling and deposits.
- Gain knowledge on software and equipment available to improve green liquor quality and throughput as well as white liquor quality.
Energy, Recovery, Lime Kiln and Recaust (ERLR) Track Schedule
(Program is subject to change.)
10:30am - 11:30am
Session 8: Lime Kiln Structure and Unit Operations
Session Chair: Nikolai DeMartini, University of Toronto
- The Untapped Potential for Firing Non-Fossil Fuels in Rotary Kilns
Tejas Ashar Metso UK
- Refractory Wear Characterization in Lime Recovery Kilns
James Hemrick, Oak Ridge National Laboratory
Rotary Kiln Support Systems: Reviewing Journal Bearing Function, Operation, and Maintenance
Andrew Wisner, NAK Kiln
10:30am - 12:00pm
Session 10: Boiler Optimization and Improvements
Session Chair: Chris Jackson, Paragon Consults
- Real Measurements Lead to Real Understandings and Better Operating Control of the Recovery Liquor Cycle
John Porter, FITNIR Analyzer, Inc.
- Bottom‐Up Improvement of the Boiler Feedwater System
James Harriz, Jacobs Engineering Group, Inc.
1:30pm - 3:00pm
1:30pm - 2:30pm
Session 14: Mud Filters for Lime Kiln Operations Panel
Moderator: Peter Gorog, Houghton Cascade Holdings, LLC; Glenn Hanson, Metso
- Common Cloth Failure Modes that Lead to Filter Performance Losses & Optimized Shower Flow for Efficient Cake Washing and Drying
Trevor Van Bavel, McFarlen Engineering
- Precoat Continuous Cleaner Optimization & Technology Improvements in Lime Mud Precoat Filters
Lindsay Brandino Rawls, Andritz Pulp & Paper
- Lime Mud Filter (LMF) Optimization
Tobin Alt, Kadant Black Clawson, LLC
Session 15: Evaporation Unit Operations and Black Liquor Measurement
Session Chair: Matthew Tomkins, FPInnovations
- Continuous, Real‐time Measurement of Black Liquor Chemical Makeup Using Static Optics FTIR Spectroscopy
Adam Wilson, Keit Spectrometers
- Modeling the Dynamics of Evaporator Wash Cycles
Jasmine Kung, University of Toronto
3:30pm - 5:00pm
Session 17: Unit Operations Recaust/Kiln
Session Chair: Thanh Trung, FITNIR Analyzers Inc.
- Factors Affecting on the Settling and Filtering Properties of Green Liquor Dregs
Elizabeth Maggs, University of Toronto
- Factors Affecting Phosphorus Up-take/Dissolution during Slaking and Causticizing
S. Maryam Sadegh Mousavi, University of Toronto (presented by Nikolai DeMartini, University of Toronto)
- Online Image Analysis of Nodule Particle‐size Distribution for the Control of Lime Kiln Operation
Sven Hermansson, Södra Skogsägarna
Wednesday, November 8th
8:30am - 9:30pm
8:30am - 10:00pm
Session 18: Using Technology to Simulate and Optimize a Kraft Mill
Session Chair: Jack Porter, FITNIR Analyzers Inc.
- Optimum Steam Plant Efficiency Through Advanced Controls and Energy Dashboards
Ben Janvier, Enero Solutions
- Understanding the Energy and Emission Implications of New Technologies in a Kraft Mill: Insights from a CADSIM Plus Simulation Model
Adam Rogerson, NRCan
Session 20: Kraft Liquor Cycle Chemistry
Session Chair: Alex Moline, Domtar
- Precipitator Ash Addition to Black Liquor to Reduce Evaporator Scaling – Understanding the Fate of the Ash
Ahmed Khafhafer, FPInnovations
- Sulphur Makeup in an Unbleached Kraft Mill
Mehul Chauhan, Hinton Pulp West Fraser
- Effect of High Sulphate Content on Fluidity of Recovery Boiler Molten Smelt
Honghi Tran, University of Toronto
Session 21: Alternative Fuel Pathways for Kraft Pulp Mills to Reduce CO2 Emissions for Lime Kilns
Session Co-Chairs: Nikolai DeMartini, University of Toronto and J. Peter Gorog, Houghton Cascade Holdings LLC**
Mill Experience Firing Biofuels in a Kiln
Tord Hultberg, Sodra
DOE Program on Hydrogen in the Glass, Steel and Paper Industries
James Hemrick, Oak Ridge National Labortory
Alternate Kiln Fuels – The Canadian Prospective
Wei Ren, FPInnovations
10:30am - 12:00pm
Session 22: NPEs and Overall Process Mill/Recaust
Session Chair: Wei Ren, FPInnovations
- Effects of the Variability of Wood Chip Composition on Recovery Cycle Operations
Torsten Meyer, University of Toronto
- Predicting Non-process Element Behavior in Modern Pulp Mills
Camilla Karlemo, Valmet
- Results of Causticizing Plant Targets on the Kraft Mill Operation
Travis Conner, Valmet