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Journal articles
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Open Access
The solubility of calcium carbonate in green liquor handling systems, TAPPI Journal October 2019

ABSTRACT: The formation of hard calcite (CaCO3) scale in green liquor handling systems is a persistent problem in many kraft pulp mills. CaCO3 precipitates when its concentration in the green liquor exceeds its solubility. While the solubility of CaCO3 in water is well known, it is not so in the highly alkaline green liquor environment. A systematic study was conducted to determine the solubility of CaCO3 in green liquor as a function of temperature, total titratable alkali (TTA), causticity, and sulfidity. The results show that the solubility increases with increased temperature, increased TTA, decreased causticity, and decreased sulfidity. The new solubility data was incorporated into OLI (a thermodynamic simulation program for aqueous salt systems) to generate a series of CaCO3 solubility curves for various green liquor conditions. The results help explain how calcite scale forms in green liquor handling systems.

Journal articles
Magazine articles
Open Access
Editor's Note: Recovery Boiler Insights, TAPPI JOURNAL Febru

Editor's Note: Recovery Boiler Insights, TAPPI JOURNAL February 2010

Journal articles
Open Access
CFD-Based Modeling of Kraft Char Beds â?¢ Part 1: Char Bed Burning Model, TAPPI JOURNAL February 2010

CFD-Based Modeling of Kraft Char Beds • Part 1: Char Bed Burning Model, TAPPI JOURNAL February 2010

Journal articles
Open Access
New Possibilities In Bleaching Wood-Containing Dip: Alternative To Alkaline Peroxide Bleaching, February 2010

New Possibilities In Bleaching Wood-Containing Dip: Alternative To Alkaline Peroxide Bleaching, February 2010

Journal articles
Open Access
A novel approach to quantify spatial coating-layer formation, TAPPI JOURNAL November 2010

A novel approach to quantify spatial coating-layer formation, TAPPI JOURNAL November 2010

Journal articles
Open Access
Experimental and theoretical study of the manifold flow in a curtain coater, TAPPI JOURNAL November 2010

Experimental and theoretical study of the manifold flow in a curtain coater, TAPPI JOURNAL November 2010

Journal articles
Open Access
Nanofibrillated cellulose as a coating agent to improve print quality of synthetic fiber sheets, TAPPI JOURNAL November 2010

Nanofibrillated cellulose as a coating agent to improve print quality of synthetic fiber sheets, TAPPI JOURNAL November 2010

Journal articles
Open Access
Use of confocal laser scanning microscopy and a computer model to understand ink cavitation and filamentation, TAPPI JOURNAL October 2010

Use of confocal laser scanning microscopy and a computer model to understand ink cavitation and filamentation, TAPPI JOURNAL October 2010

Journal articles
Open Access
Determination of aluminum soaps in pitch deposits by gas chromatography, TAPPI JOURNAL October 2010

Determination of aluminum soaps in pitch deposits by gas chromatography, TAPPI JOURNAL October 2010

Journal articles
Open Access
Influence of oxidation and cationization on the properties of thermomechanical pulp fibers, TAPPI JOURNAL October 2010

Influence of oxidation and cationization on the properties of thermomechanical pulp fibers, TAPPI JOURNAL October 2010

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