Pulping & Bleaching

October 30 - November 2, 2022 | Rhode Island Convention Center | Providence, RI

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Pulping & Bleaching

 

View Pulping & Bleaching Track Schedule


   

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:

Demonstration of learning outcomes: After attending the alkaline pulping and bleaching presentation sessions attendees will have a better understanding of how to implement:

 


Pulping & Bleaching Track Schedule

(Program is subject to change.)

 

Monday, October 31
     
           
3:30pm - 5:30pm

Session 4: Bleach Plant Benchmarking and Optimization

Optimizing the bleaching process can be complicated. Challenges and benchmarking will be discussed.

 

Session Chair: Dan Nicholson, Solenis, LLC

 
     

Using Bleaching Stage Models for Benchmarking Softwood ECF Bleach Plants

Brian N. Brogdon, Future Bridge Consulting Services, LLC
     

You Have Several Bleaching Stages, Why Don't You Use Them?

James Goldman, BTG
     

Bleach Plant Benchmarking and the Sequence Kappa Factor Flaw

Tom Mullen, Process Innovations, LLC
           
 Tuesday, November 1

 

 
10:30am - 12:30pm

Session 7: Efficient Washing and Black Liquor Management

Good washing is important and can be improved by better measurements and chemical additives. Removing some of the water from the weak BL filtrate could allow it to be recycled, increasing water efficiency even more.

   

   Session Chair: Mathias Lindström, International Paper

 
     

DD-Washer Performance Optimization Using Latest Measurement Technology

Riku Kopra, South-Eastern Finland University of Applied Sciences, Fiber Laboratory
     

Understand Chemi-Washer Washing Operation to Enhance Efficiency and Reduce Cost

Michael Wang, Solenis
     

Successful Field Testing of Black Liquor Reverse Osmosis Modules

Brent Keller, Via Separations
     

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. 

   

Session Chair: Ashok Ghosh, WestRock

     

Oxygen Delignification Model Using Vanska, van Heiningen Equation

Tom Mullen, Process Innovations, LLC
     

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.

    Session Chair: Tom Mullen, Process Innovations, LLC  
     

Chorine Dioxide Generator Liquor Composition Control Using FITNIR Online-Benefits and Process Improvements

TBA, Evergreen Packaging, Pactiv Evergreen
     

Practical Brightening for Low-pH Kraft Pulp Through In Situ Creation of Peracetic Acid from Peracetate

Howard Kaplan, Kaplan Consulting, LLC
     

Some Preliminary Results on Oxygen Addition to D-State Bleaching (D/O)

Raymond C. Francis, SUNY ESF
     

Z-ECF and Z-TCF of Softwood Kraft Pulp Bleaching

Alexis Metais, Xylem
           
Wednesday, November 2
8:30am - 10:00am

Session 24: Solving Problems for Better Optimization

Classic pulping challenges are examined for improved methods and optimization.

   

Session Chair: Franklin Zambrano, Solenis

 
      Comparison of White Liquor Measurement Gauge Studies-Titration versus Benchtop Near-Infrared Analyzers   Michael AguilarWestRock
     

 De-Resinators and Yield Improvement - Why is it so Hard

 Delos Boardman, Retired
     

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

Panelists will discuss PFAS testing challenges, regulatory issues, how/why this is important to the industry and where it has been found, what to look for, and different PFAS treatment technologies available.

   

Session Chair: Dan Curry, TRC

 
     

Panelists: 

  • Cathy Swanson, Purolite, an Ecolab Company
  • Elizabeth Denly, TRC
  • Giffe Johnson, NCASI