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Journal articles
Pulping and Papermaking Properties of Managed Second-Growth
Pulping and Papermaking Properties of Managed Second-Growth Softwoods, 1995 Pulping Conference Proceedings
Journal articles
Magazine articles
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
Guest Editorial: TAPPIâ??s 2013 PEERS Conference: Pulp manufacturing highlights, TAPPI JOURNAL March 2014
Guest Editorial: TAPPI’s 2013 PEERS Conference: Pulp manufacturing highlights, TAPPI JOURNAL March 2014
Journal articles
Heat integration opportunities in an average Scandinavian fine paper mill: Model study and comparison with a market pulp mill, TAPPI JOURNAL February 2008
Heat integration opportunities in an average Scandinavian fine paper mill: Model study and comparison with a market pulp mill, TAPPI JOURNAL February 2008
Journal articles
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
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
Journal articles
Consequences of lignin precipitation in the pulp and paper industry, TAPPI JOURNAL, January 2006, Vol. 5(1) (236 KB)
Consequences of lignin precipitation in the pulp and paper industry, TAPPI JOURNAL, January 2006, Vol. 5(1) (236 KB)
Journal articles
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
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
Mimosa (Albizia Julibrissin) Pulping and Papermaking Properties, TAPPI JOURNAL, April 2007
Mimosa (Albizia Julibrissin) Pulping and Papermaking Properties, TAPPI JOURNAL, April 2007