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Journal articles
Open Access
Visualization of Liquid-Vapor Phase Change Phenomena in Impu

Visualization of Liquid-Vapor Phase Change Phenomena in Impulse Technology, TAPPI JOURNAL, June 2006, Vol. 5(6) (767 KB)

Journal articles
Open Access
Development of Predictive Oxygen Delignification Models Usin

Development of Predictive Oxygen Delignification Models Using Kinetic Expressions and Neural Networks, TAPPI JOURNAL, May 2006, Vol. 5(5) (151 KB)

Journal articles
Magazine articles
Open Access
Editorial: 2018 TAPPI Journal features diverse content, TAPPI Journal November 2018

Editorial: 2018 TAPPI Journal features diverse content, TAPPI Journal November 2018

Journal articles
Magazine articles
Open Access
Critical parameters for tall oil separation I: The importance of ration of fatty acids to rosin acids, TAPPI Journal September 2019

ABSTRACT: Tall oil is a valuable byproduct in chemical pulping of wood, and its fractions have a large spectrum of applications as chemical precursors, detergents, and fuel. High recovery of tall oil is important for the economic and environmental profile of chemical pulp mills. The purpose of this study was to investigate critical parameters of tall oil separation from black liquor. To investigate this in a controlled way, we developed a model test system using a “synthetic” black liquor (active cooking chemicals OH- and HS- ions), a complete process for soap skimming, and determination of recovered tall oil based on solvent extraction and colorimetric analysis, with good reproducibility. We used the developed system to study the effect of the ratio of fatty acids to rosin acids on tall oil separation. When high amounts of rosin acids were present, tall oil recovery was low, while high content of fatty acids above 60% significantly promoted tall oil separation. Therefore, manipulating the content of fatty acids in black liquor before the soap skimming step can significantly affect the tall oil solubility, and hence its separation. The findings open up chemical ways to improve the tall oil yield.

Journal articles
Open Access
Reducing shives level in nonwood chemithermomechanical pulp, TAPPI JOURNAL, August 2005, Vol. 4(8) (200 KB)

Reducing shives level in nonwood chemithermomechanical pulp, TAPPI JOURNAL, August 2005, Vol. 4(8) (200 KB)

Journal articles
Open Access
Mimosa (Albizia Julibrissin) Pulping and Papermaking Properties, TAPPI JOURNAL, April 2007

Mimosa (Albizia Julibrissin) Pulping and Papermaking Properties, TAPPI JOURNAL, April 2007

Journal articles
Open Access
Life-cycle thinking in the pulp and paper industry, part 2: LCA studies and opportunities for development, TAPPI JOURNAL, August 2007

Life-cycle thinking in the pulp and paper industry, part 2: LCA studies and opportunities for development, TAPPI JOURNAL, August 2007

Journal articles
Open Access
Treatment of Bleaching Effluent From the Pulp and Paper Industry by Photcatalytic Oxidation, TAPPI JOURNAL, June 2007

Treatment of Bleaching Effluent From the Pulp and Paper Industry by Photcatalytic Oxidation, TAPPI JOURNAL, June 2007

Journal articles
Open Access
Development of a Jacobian Module for Advanced Pulp and Paper Simulation and Control, TAPPI JOURNAL January 2009

Development of a Jacobian Module for Advanced Pulp and Paper Simulation and Control, TAPPI JOURNAL January 2009

Journal articles
Open Access
Application of Advanced Wet-End System Using Carboxymethyl Cellulose to Mixed Pulp Slurries for Wood-Containing Paper Production, TAPPI JOURNAL May 2009

Application of Advanced Wet-End System Using Carboxymethyl Cellulose to Mixed Pulp Slurries for Wood-Containing Paper Production, TAPPI JOURNAL May 2009

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