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Characterizing refining action in PFI mills, TAPPI JOURNAL & Solutions! March 2005, Vol. 4(3)

Characterizing refining action in PFI mills, TAPPI JOURNAL & Solutions! March 2005, Vol. 4(3)

Refiner mechanical pulp from kenaf for newsprint manufacture, Solutions! & TAPPI JOURNAL, April 2004, Vol. 3(4) (297KB)

Refiner mechanical pulp from kenaf for newsprint manufacture, Solutions! & TAPPI JOURNAL, April 2004, Vol. 3(4) (297KB)

Response of bagasse and wheat straw recycled pulps to refining, Solutions! & TAPPI JOURNAL, October 2004, Vol. 3(10) (349KB)

Response of bagasse and wheat straw recycled pulps to refining, Solutions! & TAPPI JOURNAL, October 2004, Vol. 3(10) (349KB)

Bio-refining Pine Chemicals: Science, Innovation and Policy:

Bio-refining Pine Chemicals: Science, Innovation and Policy: Intelligent Sustainable Chemical Solutions, 2012 International Bioenergy & Bioproducts Conference

Development of Fiber Properties in Full Scale HC and LC Refi

Development of Fiber Properties in Full Scale HC and LC Refining, 2016 International Mechanical Pulping Conference

Optimization of In-Refiner Brightening with H2O2 for Product

Optimization of In-Refiner Brightening with H2O2 for Production of High Brightness Mechanical Printing Paper, 1995 Pulping Conference Proceedings

Mill scale production of TMP with double disk refining • The

Mill scale production of TMP with double disk refining • The effects of a mild sulfonation, atmospheric preheating and refining temperatures, 2016 International Mechanical Pulping Conference

TMP Mill Improvements Through Advances in Single Direction Refiner Plate Design, 1999 International Mechanical Pulping Conference Proceedings

TMP Mill Improvements Through Advances in Single Direction Refiner Plate Design, 1999 International Mechanical Pulping Conference Proceedings

A targeted approach to produce energy-efficient packaging materials from high-yield pulp, TAPPI Journal August 2025

ABSTRACT: Unlike fossil-based plastics, wood-based packaging materials can be produced in an ecofriendly manner using wood chip residuals from sawmills and pulpwood. To produce high-yield pulp like chemithermomechanical pulps (CTMPs) for paperboard and liquid packaging, it is crucial to reduce the electric energy consumption during fiber separation. The ultimate objective is to revolutionize paperboard production by achieving a middle-layer CTMP process that consumes less than 200 kilowatt-hours per metric ton (kWh/t), significantly improving from the current 500•600 kWh/t energy demand. Optimizing the CTMP impregnation process of sodium sulfite (Na2SO3) in wood chips is crucial for achieving uniform softening, ideally at the fiber level. The properties of the fibers are significantly affected by the content of lignin sulfonates within the walls of the fiber and the middle lamellae. In this study, we employed in-house developed X-ray fluorescence (XRF) techniques, validated by beamline measurements, to map the distribution of sulfonated lignin within fibers. It also seemed possible to enhance the surface area of lignin-rich pulp fibers while losing minimal bulk by refining them with well-optimized low consistency (LC) refining. We aimed to achieve a highly efficient separation of coniferous wood fibers by co-optimizing the sulfonation and the temperature in the preheater and chip refiner. Additionally, we explored how lignin’s softening behavior and potential crosslinking influence subsequent unit operations, including pressing, peroxide bleaching, and drying, following the defibration process. In defibration during chip refining, the maximum softening of wood fibers is preferred to maximize fiber preservation and minimize energy consumption. However, optimizing the stiffness of finished pulp fibers is preferable to reduce bulk loss during paperboard production. It can strive to optimize processes to develop stronger, lighter, and more sustainable composite packaging materials. Reducing environmental impact and electric energy can help create a more sustainable future.

A Systems Thinking Approach: Institutional Memory Loss in Pulp and Paper Industry, TAPPICon25