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Journal articles
Open Access
Design and installation of a rplacement thermal oxidizer for odor abatement, TAPPI JOURNAL, April 1999, Vol. 82(4)

Design and installation of a rplacement thermal oxidizer for odor abatement, TAPPI JOURNAL, April 1999, Vol. 82(4)

Magazine articles
Open Access
An overview of the south african pulp and paper industry, TAPPI JOURNAL, April 1999, Vol. 82(4)

An overview of the south african pulp and paper industry, TAPPI JOURNAL, April 1999, Vol. 82(4)

Magazine articles
Open Access
Retention aids for highspeed paper machines, TAPPI JOURNAL, April 1999, Vol. 82(4)

Retention aids for highspeed paper machines, TAPPI JOURNAL, April 1999, Vol. 82(4)

Journal articles
Open Access
Some mechanistic insights for using the streaming current detector to measure wet-end charge, TAPPI JOURNAL, August 1999, Vol. 82(8)

Some mechanistic insights for using the streaming current detector to measure wet-end charge, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Australia's Paper and Forestry Forum: A Preview of Significant Issues for 1998-2008, TAPPI JOURNAL, January 1999, Vol. 83(5)

Australia's Paper and Forestry Forum: A Preview of Significant Issues for 1998-2008, TAPPI JOURNAL, January 1999, Vol. 83(5)

Journal articles
Open Access
The role of use-attainability analysis in determining standards for water quality-The Androscoggin River (Maine) case study, TAPPI JOURNAL July 1988

The role of use-attainability analysis in determining standards for water quality-The Androscoggin River (Maine) case study, TAPPI JOURNAL July 1988

Journal articles
Open Access
Further comments on a visual study of pulp floc dispersion mechanisms, TAPPI JOURNAL 1988

Further comments on a visual study of pulp floc dispersion mechanisms, TAPPI JOURNAL 1988

Journal articles
Open Access
Evaluation of deinking performance: a review of test methods, TAPPI JOURNAL January 1988 88JAN129

Evaluation of deinking performance: a review of test methods, TAPPI JOURNAL January 1988

Journal articles
Open Access
Pressurized grinding of chemically treated wood, TAPPI JOURNAL January 1988 88JAN117

Pressurized grinding of chemically treated wood, TAPPI JOURNAL January 1988

Journal articles
Magazine articles
Open Access
Quantification of hardwood black liquor contamination in pine black liquor, TAPPI Journal February 2024

ABSTRACT: The presence of hardwood black liquor contamination in pine black liquor can negatively impact brownstock washer and evaporator operation, as well as reduce soap separation and yield. It is also believed to negatively impact commercial kraft lignin production. It was desired to develop a method of quantitatively determining the amount of low-level hardwood liquor contamination in pine black liquor. A method employing pyrolysis-gas chromatography mass spectrometry (py-GCMS) was developed to perform the desired measurement. Laboratory cooks with carefully controlled blends of pine and hardwood chips were prepared, and the resulting liquor was measured using this technique. Additionally, samples of pine and hardwood black liquors were blended in known quantities and analyzed. All these samples were submitted as blind samples. The resulting analysis suggests the py-GCMS method was able to accurately determine the level of hardwood contamination between 1% to 10% hardwood liquor using a low-level calibration curve prepared with coniferyl alcohol and sinapyl alcohol as standards.

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