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The ECSB Reactor for Anaerobic Treatment of Pulp and Paper Mills Effluents, 2013 PEERS Conference

The ECSB Reactor for Anaerobic Treatment of Pulp and Paper Mills Effluents, 2013 PEERS Conference

Bagasse Handling Challenges-Mill Experiences, 2013 PEERS Conference

Bagasse Handling Challenges-Mill Experiences, 2013 PEERS Conference

Production of Printing and Writing Paper Grade Pulp from Sugar Cane Bagasse, 2013 PEERS Conference

Production of Printing and Writing Paper Grade Pulp from Sugar Cane Bagasse, 2013 PEERS Conference

Implementation of New 500tpd Chemical Bagasse Pulp Line, 2013 PEERS Conference

Could biomass-fueled boilers be operated at higher steam temperatures? 3. Initial analysis of costs and benefits., 2013 PEERS Conference

Full Scale Application of Ozone for Bulking Control at a Pulp & Paper Facility, 2013 PEERS Conference

Full Scale Application of Ozone for Bulking Control at a Pulp & Paper Facility, 2013 PEERS Conference

Mill experience with an energy saving laminar design screen basket in the paper machine approach system, 2013 PEERS Conference

Mill experience with an energy saving laminar design screen basket in the paper machine approach system, 2013 PEERS Conference

Anionic Polyelectrolyte to Effective Removal of Pressure Sensitive Adhesives (PSAâ??s) in the Treatment Procedures of Paper Recycling, 2013 PEERS Conference

Anionic Polyelectrolyte to Effective Removal of Pressure Sensitive Adhesives (PSA’s) in the Treatment Procedures of Paper Recycling, 2013 PEERS Conference

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Safety is Easy as PI

Safety is Easy as PI

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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
Magazine articles
TAPPI Journal Summaries, Paper360º September/October 2019

TAPPI Journal Summaries, Paper360º September/October 2019

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