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Journal articles
Continuous Time Domain Characterization of Mixing in Agitated Pulp Chests, TAPPI JOURNAL May 2008
Continuous Time Domain Characterization of Mixing in Agitated Pulp Chests, TAPPI JOURNAL May 2008
Journal articles
Chemical and Mechanical Techniques for Improving the Papermaking Properties of Jack Pine TMP Fibers, TAPPI JOURNAL May 2008
Chemical and Mechanical Techniques for Improving the Papermaking Properties of Jack Pine TMP Fibers, TAPPI JOURNAL May 2008
Journal articles
Catalyzed interstage sulfonation CTMP process of aspen wood, TAPPI JOURNAL, June 2002, Vol. 1(4) (95KB)
Catalyzed interstage sulfonation CTMP process of aspen wood, TAPPI JOURNAL, June 2002, Vol. 1(4) (95KB)
Journal articles
Determination of Hexenuronic Acid and Residual Lignin in Pulps by UV Spectroscopy in Cadoxen Solutions, JOURNAL OF PULP AND PAPER SCIENCE: VOL. 28 NO. 6 JUNE 2002 [02JUNJP189.pdf]
Determination of hexenuronic acid and residual lignin in pulps by uv-spectroscopy in cadoxen solutions, Journal of Pulp and Paper Science, June 2002, Vol. 28(6) (188KB)
Journal articles
Fiber property modification by mechanical pretreatment, TAPPI JOURNAL, March 2002 (261KB)
Fiber property modification by mechanical pretreatment, SOLUTIONS! & TAPPI JOURNAL, March 2002 (261KB)
Journal articles
Effect of stripper off-gas burning on NOx emissions, TAPPI JOURNAL, March 2002, Vol. 1(1) (93KB)
Effect of stripper off-gas burning on NOx emissions, TAPPI JOURNAL, March 2002, Vol. 1(1) (93KB)
Journal articles
Usable excess heat in future kraft pulp mills, TAPPI JOURNAL, November 2002, Vol. 1(9) (352KB)
Usable excess heat in future kraft pulp mills, Solutions! & TAPPI JOURNAL, November 2002, Vol. 1(9) (352KB)
Journal articles
Simplified modeling of a complete rotary lime kiln at a pulp mill, TAPPI Journal February 2026
ABSTRACT: Rotary lime kilns are essential and complex components in pulp mills using the kraft process. They are primarily used to produce lime (CaO), which is then employed to make white liquor, the reagent used to separate wood fibers. To understand and improve the performance of the kiln, modeling its behavior is essential. However, the kiln operates through a complex combination of thermal and chemical phenomena. That is why a simplified approach was used to tackle this challenge. A zero/one-dimensional steady-state analysis was performed based on first principles to simplify the modeling process and reduce the need for experimental data. Additional assumptions, such as steady-state operation and the absence of a refractory lining, were introduced to further simplify the model so that it can be used for daily analysis. Moreover, the auxiliary equipment of the plant, such as the intercooler and preheat cyclone, is also modeled. The final model was validated using data from the literature and a two-month analysis of experimental measure-ments from the Burgo Ardennes lime kiln in Virton, Belgium. It shows good agreement with the available data, with a 6% deviation for the adiabatic flame temperature and a 17% average error in predicting the kiln shell outside temperature. For the fuel and lime flow rate predictions, also validated over the same two-month period, the errors were -6.6% and 0.6%, respectively.
Journal articles
Development of a packaging test method, TAPPI Journal February 2026
ABSTRACT: Innovation in packaging design will be facilitated by a simple test method to indicate whether a product is compatible with paper recycling. Three laboratories cooperated on the development of a method and used it on linerboard, coated paperboard, wet-strength paperboard, and white copy paper. This test method includes pulping and screening. The data presented here illustrate the factors affecting the results of a bench-scale test. Our observations show that a bench-scale test can give reproducible results for yield, < 5%. We also present an approach to contaminant assessment based on current published test methods. A specification with a lower limit on yield of 70% and a contaminant level of less than 5,000 particles/kg is proposed.
Journal articles
Magazine articles
External fibrillation of wood pulp, TAPPI Journal June 2023
ABSTRACT: Pulp refining produces external fibrillation consisting of fibrils tethered to fiber surfaces, in addition to loose fibrils and fines. Both contribute to a larger bonding area that increases paper strength, but tethered fibrils have less likelihood of being washed out during papermaking. This study postulates the mechanism by which refining produces external fibrillation and the optimum conditions for doing so.The postulated mechanism is surface abrasion during sliding of fibers in refiner gaps. External fibrillation occurs when forces are great enough to partially dislodge fibrils from fiber surfaces, but not large enough to break the fibrils. The refining intensities to achieve these forces were determined by a mathematical model and experiments using a laboratory disc refiner. The optimum intensities in terms of specific edge load (SEL) for chemical pulps were about 0.1 J/m for hardwoods and 1.0 J/m for softwoods. An extension of this study suggested that abrasion may also account for most of the energy consumed in the mechanical pulping process.