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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.

Journal articles
Open Access
Statistical determination of the effects of enzymes on bleached pulp yield, TAPPI JOURNAL, August 2005, Vol. 4(8) (80 KB)

Statistical determination of the effects of enzymes on bleached pulp yield, TAPPI JOURNAL, August 2005, Vol. 4(8) (80 KB)

Journal articles
Open Access
Characterization of tensile fracture properties of paper, TAPPI JOURNAL, February 2000, Vol. 83(2)

Characterization of tensile fracture properties of paper, TAPPI JOURNAL, February 2000, Vol. 83(2)

Journal articles
Open Access
Influence of coating rheology on final coating properties, TAPPI JOURNAL, February 2000, Vol. 83(2)

Influence of coating rheology on final coating properties, TAPPI JOURNAL, February 2000, Vol. 83(2)

Journal articles
Open Access
Oxalic acid formation during ecf and tcf bleaching of kraft pulp, TAPPI JOURNAL, February 2000, Vol. 83(2)

Oxalic acid formation during ecf and tcf bleaching of kraft pulp, TAPPI JOURNAL, February 2000, Vol. 83(2)

Journal articles
Open Access
Wet and dry coating structure of calcium carbonate pigments with narrow particle size distribution, TAPPI JOURNAL, February 2000, Vol. 83(2)

Wet and dry coating structure of calcium carbonate pigments with narrow particle size distribution, TAPPI JOURNAL, February 2000, Vol. 83(2)

Journal articles
Open Access
A laboratory study of occ flotation for removal of model stickie particles, TAPPI JOURNAL, July 2000, Vol. 83(7)

A laboratory study of occ flotation for removal of model stickie particles, TAPPI JOURNAL, July 2000, Vol. 83(7)

Journal articles
Open Access
Addition of sodium silicate and chelant to the fas stage to bleach recycled fibers, TAPPI JOURNAL, July 2000, Vol. 83(7)

Addition of sodium silicate and chelant to the fas stage to bleach recycled fibers, TAPPI JOURNAL, July 2000, Vol. 83(7)

Journal articles
Open Access
Adsorption of anionic dissolved and colloidal substances onto calcium carbonate fillers, TAPPI JOURNAL, July 2000, Vol. 83(7)

Adsorption of anionic dissolved and colloidal substances onto calcium carbonate fillers, TAPPI JOURNAL, July 2000, Vol. 83(7)

Journal articles
Open Access
Advanced combustion and flow modeling: comprehensive model study improves recovery boiler operation, TAPPI JOURNAL, July 2000, Vol. 83(7)

Advanced combustion and flow modeling: comprehensive model study improves recovery boiler operation, TAPPI JOURNAL, July 2000, Vol. 83(7)

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