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Journal articles
Open Access
Revised steady-state model for chlorine dioxide brightening

Revised steady-state model for chlorine dioxide brightening that considers extraction washer carryover effects, TAPPI JOURNAL March 2016

Journal articles
Open Access
Improving recovery boiler availability through understanding

Improving recovery boiler availability through understanding fume behavior, TAPPI JOURNAL March 2016

Journal articles
Open Access
Ring removal in rotary kilns used by the pulp and paper

Ring removal in rotary kilns used by the pulp and paper industry, TAPPI JOURNAL March 2016

Journal articles
Open Access
Treating kraft mill extract using bipolar membrane

Treating kraft mill extract using bipolar membrane electrodialysis for the production of acetic acid, TAPPI JOURNAL March 2016

Journal articles
Magazine articles
Open Access
Comprehensive fault detection and isolation method applied t

Comprehensive fault detection and isolation method applied to a recovery boiler, TAPPI JOURNAL May 2016

Journal articles
Magazine articles
Open Access
Psychophysical tests for visual-numerical correlation of whi

Psychophysical tests for visual-numerical correlation of whiteness formulas, TAPPI JOURNAL May 2016

Journal articles
Magazine articles
Open Access
Editorial: A preview of PEERS 2019, TAPPI Journal September 2019

ABSTRACT: Coming soon is PEERS • TAPPI’s annual Pulping, Engineering, Environmental, Recycling and Sustainability gathering for industry professionals. Held this October 27-30 in St. Louis, MO, the conference is co-located with the International Bioenergy & Bioproducts Conference (IBBC) and the 12th Research Forum on Recycling. Universities and research organizations from around the world are represented in the conference content, and below is a sampling of just a few of the many presentations that might interest TAPPI Journal readers.

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
Measurement of kappa number variability on the fiber level, Solutions! & TAPPI JOURNAL, December 2002, Vol. 1(10) (147KB)

Measurement of kappa number variability on the fiber level, Solutions! & TAPPI JOURNAL, December 2002, Vol. 1(10) (147KB)

Journal articles
Open Access
Focused beam reflectant measurement as a tool to measure flocculation, TAPPI JOURNAL, December 2002, Vol. 1(10) (324KB)

Focused beam reflectant measurement as a tool to measure flocculation, Solutions! & TAPPI JOURNAL, December 2002, Vol. 1(10) (324KB)

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