Pulping & Bleaching

October 30 - November 2, 2022 | Providence, RI

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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 chip selection, digester operation, washing control/ optimization, black liquor filtration and oxidation, oxygen delignification, peracetate, ozone and chlorine dioxide bleaching chemistry and optimization. Presentations addressing new detector and computer control/learning systems are included.

Track Schedule

(Program is subject to change.)


Monday, November 8
1:30pm - 3:00pm
Session 5: Pulping with Better Control

Session Chair: Ashok Ghosh, Westrock


Virtual Sensor System for Pulp Fiberline Predictive Control

Danilo Soares, IndustriALL

Optimal Control Strategy for Refining Process in Thermo-mechanical Pulp Mill by Integration of Genetic Algorithm and Neural Network

Behnam Talebjedi, Aalto University


     How to Detect Dirt and Shives in Pulp Slurries  David Zerr, Consultant
3:30pm - 5:00pm
Session 7: Pine Chemicals Recovery Enhance Revenue Panel Discussion
    Moderator: TBA  
 Tuesday, November 9


10:30am - 12:00pm
Session 11:  Bleach Plant Benchmarking and Optimization

   Session Chair: Tom Mullen, Process Innovations


Using Bleaching Stage Models for Bench-Marking Softwood ECF Bleach Plants

Brian Brogdon, Future Bridge Consulting Services LLC

Bleach Plant Optimization at the WestRock Panama City Pulp Mill

Philip Sekerak, ERCO Worldwide; Annabel Torianyk, WestRock

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

Alexis Metais, Xylem
1:30pm - 3:00pm
Session 15: Developments in Bleaching
    Session Chair: Mathias Lindström, International Paper  

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-Stage Bleaching (D/O)

Raymond C. Francis, SUNY ESF
3:00pm - 5:00pm
Session 18: Pulping Yields Bleach Shrinkage Panel Discussion
    Moderator: Brian Brogdon, Future Bridge Consulting Services LLC  


Peter W. Hart, WestRock


Wednesday, November 10


8:30am - 10:00am
Session 20: Modernizing Pulp Mill Basics

(CoSponsored by Energy, Recovery, Lime Kiln and Recaust & Pulping Bleaching Committees)

  Moderator: Terry Bliss, Solenis  
      Measure, Control and Optimize Causticizing Efficiencies in Pulp Manufacturing David Zerr, Consultant
      How Deep Learning is Used to Increase the Quality Control of Wood Chips by Classification Brian Mock, Event Capture Systems
      Successful Field Testing of Black Liquor Reverse Osmosis Modules Brent Keller, Via Separations