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Conference papers
Open Access
Introduction to hepa filtration systems, TAPPI JOURNAL, August 1990, Vol. 73(8)

Introduction to hepa filtration systems, TAPPI JOURNAL, August 1990, Vol. 73(8)

Conference papers
Open Access
Feasibility study of sludge lysis and recycle in the activat

Feasibility study of sludge lysis and recycle in the activated-sludge process, TAPPI JOURNAL, May 1996, Vol. 79(5)

Conference papers
Open Access
Nonchlorine bleaching of pulp produced by the modified continuous cooking process, TAPPI JOURNAL, August 1990, Vol. 73(8)

Nonchlorine bleaching of pulp produced by the modified continuous cooking process, TAPPI JOURNAL, August 1990, Vol. 73(8)

Conference papers
Open Access
Characterization of spanish agricultural residues with a view to obtaining cellulose pulp, TAPPI JOURNAL, August 1990, Vol. 73(8)

Characterization of spanish agricultural residues with a view to obtaining cellulose pulp, TAPPI JOURNAL, August 1990, Vol. 73(8)

Conference papers
Open Access
The buildup of dissolved solids in closed white water systems, Solutions! & TAPPI JOURNAL, August 2004, Vol. 3(8) (209KB)

The buildup of dissolved solids in closed white water systems, Solutions! & TAPPI JOURNAL, August 2004, Vol. 3(8) (209KB)

Conference papers
Open Access
Recent advances in the commercialization of NIR (near-infrar

Recent advances in the commercialization of NIR (near-infrared) based liquor analyzers in the pulping and recovery areas, TAPPI JOURNAL, November 2006

Conference papers
Open Access
Recent advances in the commercialization of NIR (near-infrar

ABSTRACT: Near-infrared (NIR) spectroscopy techniques have held the promise of a new generation of online and lab based process analyzers for the pulping and recovery areas for some years now. NIR technology has been shown to be a quite effective method for the analysis of white, green and black liquors by multiple investigators. NIR reflectance techniques have been shown to be effective in predicting yield and kappa number in pulp samples. Recently, commercial analyzers have been developed for green liquor analysis on the dissolving tank, white and green liquor analysis in the recaust area and black liquor analysis on batch and continuous digesters. These analyzers are currently running at different mill sites and are proving to be superior to current technology choices for these applications. A commercial online and lab based yield and kappa number analyzer are currently being developed based on NIR reflectance techniques. Results will be presented on the performance of these analyzers relating to accuracy, maintenance and total installed cost. Other potential NIR applications in the pulping and recovery area will also be addressed.

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