Pulping & Bleaching
The purpose of the Alkaline Pulping and Bleaching track is to disseminate new developments in the raw materials, production and characterization of pulp, present methods and exemplary data for optimizing the process, and address issues in various unit operations.
Presentations will cover developments in liquor optimization and digester operation, washing control/optimization and defoaming, black liquor concentration and oxidation, oxygen delignification theory and modeling, peracetate, ozone and chlorine dioxide bleaching chemistry and optimization. Presentations addressing new detectors and applications are included.
Learning outcomes: After successfully completing the sessions in this track, participants will be able to go back to their workplace and:
- Identify opportunities to optimize pulping and bleaching processes.
- Address and develop solutions to operational issues.
- Identify areas where advanced sensors and controls may be helpful.
- Optimize process parameters to minimize production costs and maximize profitability
Demonstration of learning outcomes: After attending the alkaline pulping and bleaching presentation sessions attendees will have a better understanding of how to implement:
- Mill trials of equipment designed to improve quality, production, or cost of a process.
- Process engineering changes based on learned information.
- Consultation with experts in the field that were connections made during the conference.
- Mill audits and operational changes to save cost and increase process performance.
- Improved mill environmental performance due to changes made based on learned bleaching chemistry and equipment developments.
Pulping & Bleaching Track Schedule
(Program is subject to change.)
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DD-Washer Performance Optimization Using Latest Measurement Technology |
Riku Kopra, South-Eastern Finland University of Applied Sciences, Fiber Laboratory |
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Understand Chemi-Washer Washing Operation to Enhance Efficiency and Reduce Cost |
Michael Wang, Solenis |
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Successful Field Testing of Black Liquor Reverse Osmosis Modules |
Brent Keller, Via Separations |
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Silicone Applications in Pulp and Paper |
Lingrong Gu, Wacker Chemie AG | ||||
| 1:30pm - 3:30pm |
Session 16: Oxygen Stages and Liquor Oxidation The mill oxygen delignification stage is continuously being optimized. New measurement techniques are allowing better understanding of fundamental mass transfer effects in real systems. |
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Session Chair: Ashok Ghosh, WestRock |
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Oxygen Delignification Model Using Vanska, van Heiningen Equation |
Tom Mullen, Process Innovations, LLC | ||||
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Modeling of Real Oxygen Delignification Processes |
Jari Käyhkö, South-Eastern Finland University of Applied Sciences | ||||
| 3:30pm - 5:30pm |
Session 19: Developments in Bleaching Bleaching processes can be improved by better control, alternative bleaching stages, and potential new bleaching agents. |
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| Session Chair: Tom Mullen, Process Innovations, LLC | |||||
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Chorine Dioxide Generator Liquor Composition Control Using FITNIR Online-Benefits and Process Improvements |
TBA, Evergreen Packaging, Pactiv Evergreen | ||||
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Practical Brightening for Low-pH Kraft Pulp Through In Situ Creation of Peracetic Acid from Peracetate |
Howard Kaplan, Kaplan Consulting, LLC | ||||
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Some Preliminary Results on Oxygen Addition to D-State Bleaching (D/O) |
Raymond C. Francis, SUNY ESF | ||||
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Z-ECF and Z-TCF of Softwood Kraft Pulp Bleaching |
Alexis Metais, Xylem | ||||
Wednesday, November 2 |
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| 8:30am - 10:00am |
Session 24: Solving Problems for Better Optimization Classic pulping challenges are examined for improved methods and optimization. |
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Session Chair: Franklin Zambrano, Solenis |
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| Comparison of White Liquor Measurement Gauge Studies-Titration versus Benchtop Near-Infrared Analyzers | Michael Aguilar, WestRock | ||||
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De-Resinators and Yield Improvement - Why is it so Hard |
Delos Boardman, Retired | ||||
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Kraft Lignin Production at West Fraser’s Hinton Mill Using the LignoForceTM System |
Michael Paleologou, FPInnovations | ||||
| 10:30am - 12:00pm |
Session 25: PFAS Issues Facing the Industry Panel Discussion PFAS are a chemical class of over 10,000 individual compounds manufactured for industrial and commercial applications since the late 1940’s. The regulatory and technical landscape surrounding PFAS is continually expanding with USEPA and state regulatory entities developing new regulations and guidance seemingly monthly. Currently, the individual states in which have pulp and paper operations are in various stages of development of their regulatory framework. Analytical methodology exists to analyze various environmental matrices (soil, water, etc.) for individual PFAS compounds at the parts per trillion concentrations which meet the regulatory criteria for most media but is not sensitive enough to meet some of the most recently developed draft health advisory levels for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in drinking water. In addition, popular press and social media is replete with narratives on the risks of “forever chemicals” with a focus on PFAS compounds. In this session there will three speakers discussing three critical aspects of PFAS as it pertains to the Pulp and Paper Industry. |
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Session Chair: Dan Curry, TRC |
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Panelists:
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