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Journal articles
Editorial: Changing of the guard: Dr. Arthur Ragauskas assumes TAPPI Journal editor-in-chief role, TAPPI Journal January 2026

TAPPI is pleased to announce that Dr. Arthur J. Ragauskas has assumed the editor-in-chief role for TAPPI Journal. Ragauskas, who is a professor at University of Tennessee (UT) in Knoxville, TN, has been a member of the TAPPI Journal Editorial Board since 2011 and is a TAPPI Fellow, as well as recipient of the TAPPI Gunnar Nicholson Gold Medal Award, among his many accomplishments. As a member of the Editorial Board, Ragauskas has curated eight special issues on a range of topics, including nanocellulose, lignocellulose, lignin valorization, and the forest biorefinery.

Journal articles
Effects of variability of wood chip composition on recovery cycle operation, TAPPI Journal January 2026

ABSTRACT: Fluctuations in wood chip properties in kraft pulp mills, which often follow seasonal patterns, can lead to changes or disruptions in the operation of the recovery cycle whereby the root causes are not immediately obvious. In some cases, these changes are attributed to operational adjustments in the digester or brownstock washing areas resulting from the variability in wood characteristics. Varying wood chip characteristics that have the most significant impact on the recovery cycle operation include the content of non-process elements (NPEs), extractives, and properties influenced by chip storage conditions. Elevated levels of NPEs, often associated with a higher influx of wood bark into the digester, can negatively affect the entire recovery cycle. Increased levels of chlorine and potassium can lead to severe fouling and corrosion in the recovery boiler. Higher concentrations of silicon, aluminum, phosphorus, magnesium and calcium in the chips may accelerate scaling in the evaporation plant, impair dregs and lime mud settling and filtering, reduce lime mud solids content and lime availability, and increase the amounts of dregs, grits, and purged lime mud. This technical review provides an overview of the most significant effects that changes in wood chip quality can potentially exert on various processes within the kraft recovery cycle.

Advanced Tie Line Control for Real Time Pricing (RTP) and Waste Fuel Cogeneration, 2008 Engineering, Pulping and Environmental Conference

Advanced Tie Line Control for Real Time Pricing (RTP) and Waste Fuel Cogeneration, 2008 Engineering, Pulping and Environmental Conference

BETTING ON BIO-REFINERY AND POSITIONING THE PULP AND PAPER INDUSTRY FOR BIO-REFINERY SUCCESS, 2008 Engineering, Pulping and Environmental Conference

BETTING ON BIO-REFINERY AND POSITIONING THE PULP AND PAPER INDUSTRY FOR BIO-REFINERY SUCCESS, 2008 Engineering, Pulping and Environmental Conference

Boiler Upgrades to Increase In-House Power Generation, 2008 Engineering, Pulping and Environmental Conference

Boiler Upgrades to Increase In-House Power Generation, 2008 Engineering, Pulping and Environmental Conference

Cavitation jet deinking: a new technology for deinking of waste paper, 2008 Engineering, Pulping and Environmental Conference

Cavitation jet deinking: a new technology for deinking of waste paper, 2008 Engineering, Pulping and Environmental Conference

Corrosion Concerns Related to Firing Petroleum Coke with Black Liquor in Kraft Recovery Boilers, 2008 Engineering, Pulping and Environmental Conference

Corrosion Concerns Related to Firing Petroleum Coke with Black Liquor in Kraft Recovery Boilers, 2008 Engineering, Pulping and Environmental Conference

Effect of Cooking Conditions and Oxygen-Delignification on Bamboo, 2008 Engineering, Pulping and Environmental Conference

Effect of Cooking Conditions and Oxygen-Delignification on Bamboo, 2008 Engineering, Pulping and Environmental Conference

EFFECT OF PULPING MOUNTAIN PINE BEETLE-KILLED WOOD ON TALL OIL SOAP RECOVERY, 2008 Engineering, Pulping and Environmental Conference

EFFECT OF PULPING MOUNTAIN PINE BEETLE-KILLED WOOD ON TALL OIL SOAP RECOVERY, 2008 Engineering, Pulping and Environmental Conference

Effect of Solids Content on Black Liquor Corrosivity, 2008 Engineering, Pulping and Environmental Conference

Effect of Solids Content on Black Liquor Corrosivity, 2008 Engineering, Pulping and Environmental Conference

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