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Journal articles
Open Access
Partial borate autocausticizing trial increases capacity at Swedish mill, TAPPI JOURNAL, September 2005, Vol. 4(9) (132 KB)

Partial borate autocausticizing trial increases capacity at Swedish mill, TAPPI JOURNAL, September 2005, Vol. 4(9) (132 KB)

Journal articles
Open Access
Application of pulping models to investigate the performance of commercial continuous digesters, Solutions! & TAPPI JOURNAL, July 2002 (129KB)

Application of pulping models to investigate the performance of commercial continuous digesters, Solutions! & TAPPI JOURNAL, July 2002 (129KB)

Journal articles
Open Access
Statistical Geometry of Paper Cross-Sections, JOURNAL OF PULP AND PAPER SCIENCE: VOL. 28 NO. 7 JULY 2002 [02JULJP228.pdf]

Statistical geometry of paper cross-sections, Journal of Pulp and Paper Science, July 2002, Vol. 28(7) (321KB)

Journal articles
Open Access
Dynamic modeling of potassium and chloride in the recovery area, TAPPI JOURNAL, June 2002 (85KB)

Dynamic modeling of potassium and chloride in the recovery area, Solutions! & TAPPI JOURNAL, June 2002 (85KB)

Journal articles
Open Access
Implementing optimization with process simulation, TAPPI JOURNAL, June 2002 (303KB)

Implementing optimization with process simulation, Solutions! & TAPPI JOURNAL, June 2002 (303KB)

Journal articles
Open Access
Effect of cooking temperature on kraft pulping of hardwood, TAPPI JOURNAL, June 2002 (175KB)

Effect of cooking temperature on kraft pulping of hardwood, Solutions! & TAPPI JOURNAL, June 2002 (175KB)

Journal articles
Open Access
Nutrient limited biofilm pretreatment - an efficient way to upgrade activated sludge plants, TAPPI JOURNAL, June 2002 (131KB)

Nutrient limited biofilm pretreatment - an efficient way to upgrade activated sludge plants, Solutions! & TAPPI JOURNAL, June 2002 (131KB)

Journal articles
Magazine articles
Open Access
Editorial: Special issue showcases new additive approaches for a lignocellulose-based future, TAPPI Journal January 2024

ABSTRACT: Lignocellulose-derived materials are inherently renewable and are of benefit not only through their recyclability and biodegradability, but also from carbon sequestration during the production of the base raw material. With regulatory agencies tightening restrictions and consumer habits slowly shifting, the paper industry is well positioned to fill a market need for renewable bio-based materials. Although the inherent benefits of lignocellulose-based products are many, all too often, the end-product does not meet the required performance or cost in use desired by end-users. This creates obstacles for a more renewable economy that relies less on petroleum-derived products.

Journal articles
Magazine articles
Open Access
Next generation dry strength additives: Leveraging on-site synthesis to develop high performance glyoxalated polyacrylamides, TAPPI Journal January 2024

ABSTRACT: Although glyoxalated polyacrylamides (gPAMs) have been described since the 1950s, the freedom to design new materials based on this chemistry has been limited by practical concerns; namely, a balance between solution concentration and material characteristics must be met to make the economics of gPAM strength additives work for the paper industry. For traditional “delivered” gPAMs, only a very narrow range of polyacrylamide molecular weights and compositions could be considered for glyoxalation. However, the development and successful implementation of automated reactor equipment that allows for the synthesis of gPAMs from glyoxal and polyacrylamide copolymers at the mill, known as “on-site” glyoxalation, obviates the shipping and stability concerns that have traditionally held back gPAM development. As such, on-site generators represent a platform that enables the glyoxalation of materials that would otherwise not have been suitable for use in a traditionally delivered gPAM product. These on-site generators therefore open new avenues for polymer design to allow for the creation of the next generation of strength additives. By leveraging the synthetic freedom of the on-site generators, a suite of high performance gPAMs has been designed, yielding materials that provide both exceptional strength and drainage performance in poor quality furnishes.

Journal articles
Magazine articles
Open Access
Improving monochloramine performance with innovative sensor-controlled dosing, TAPPI Journal January 2024

ABSTRACT: Monochloramine (MCA) has become one of the major oxidant chemistries for biological control in the paper industry. Feedback control, such as oxidative-reductive potential (ORP), is often used to provide better control of a dosing scheme. The trademarked Ackumen MCA-i is a chemical-digital solution that uses artificial intelligence with actionable insights to stabilize the wet-end process, providing improved performance and reduction in overall chemical costs. Accurate sensor-controlled dosing can be tied to multiple inputs, such as production rates, grade changes, pH, ORP, chlorine residual, freshwater usage, and more. In this study, a case history will be presented to demonstrate how this technology provided a more consistent MCA molecule throughout the process, resulting in a higher level of efficacy and reduction in chemical costs.

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