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Journal articles
Paprican's process for polysulfide liquor production in kraft mill causticizers, part 1: batch trials and process optimization, TAPPI JOURNAL, October 1999, Vol. 82(10)
Paprican's process for polysulfide liquor production in kraft mill causticizers, part 1: batch trials and process optimization, TAPPI JOURNAL, October 1999, Vol. 82(10)
Journal articles
Comments on the measurement of cell wall water, TAPPI JOURNAL, September 1999, Vol. 82(9)
Comments on the measurement of cell wall water, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Black liquor gasification - operating experience at weyerhaeuser, new bern, nc, TAPPI JOURNAL, September 1999, Vol. 82(9)
Black liquor gasification - operating experience at weyerhaeuser, new bern, nc, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Performance of a final hydrogen peroxide stage in the ECF bleaching of Eucalypt DOEOPD1 Kraft Pulps
Performance of a final hydrogen peroxide stage in the ECF bleaching of Eucalypt D0EOPD1 kraft pulps, TAPPI JOURNAL, August 2008
Journal articles
Cavitation-jet deinking: A new technology for deinking of recovered paper, TAPPI JOURNAL September 2014
Cavitation-jet deinking: A new technology for deinking of recovered paper, TAPPI JOURNAL September 2014
Journal articles
The hyperbolic theory of light scattering, tensile strength, and density in paper, TAPPI JOURNAL November 2011
The hyperbolic theory of light scattering, tensile strength, and density in paper, TAPPI JOURNAL November 2011
Journal articles
89JUN163
The influence of chlorine ratio and oxygen bleaching on the formation of PCDFs and PCDDs in pulp bleaching - Part 2: a full mill study, TAPPI JOURNAL June 1989
Journal articles
Hydrogen peroxide and caustic soda: Dancing with a dragon while bleaching,TAPPI Journal December 2024
Peter W. Hart, Carl Houtman, and Kilby Hirth | TAPPI J. 12(7): 59(2013) - ABSTRACT: When hydrogen peroxide is mixed with caustic soda, an auto-accelerating reaction can lead to generation of significant amounts of heat and oxygen. On the basis of experiments using typical pulp mill process concentration and temperatures, a relatively simple kinetic model has been developed. Evaluation of these model results reveals that hydrogen peroxide-caustic soda systems are extremely sensitive to hydrogen peroxide:caustic soda ratio, transition metal contamination, and temperature. Small changes in initial conditions can result in a closed system becoming explosive. Analysis of model results was used to develop guidelines for safer application of hydrogen peroxide in a mill setting.
Journal articles
Hydrogen peroxide and caustic soda: Dancing with a dragon while bleaching, TAPPI JOURNAL July 2013
Authors: Peter W. Hart; Carl Houtman; and Kilby Hirth | ABSTRACT: When hydrogen peroxide is mixed with caustic soda, an auto-accelerating reaction can lead to generation of significant amounts of heat and oxygen. On the basis of experiments using typical pulp mill process concentration and temperatures, a relatively simple kinetic model has been developed. Evaluation of these model results reveals that hydrogen peroxide-caustic soda systems are extremely sensitive to hydrogen peroxide:caustic soda ratio, transition metal contamination, and temperature. Small changes in initial conditions can result in a closed system becoming explosive. Analysis of model results was used to develop guidelines for safer application of hydrogen peroxide in a mill setting.
Journal articles
Production of high yield bleached hardwood kraft pulp: Breaking the kraft pulp yield barrier,TAPPI Journal December 2024
Author: Peter W. Hart | TAPPI J. 10(9): 37(2011) - ABSTRACT: A modified kraft pulping process has been developed that successfully breaks the traditional hard-wood kraft pulp yield barrier. The process produces fully bleached, high brightness hardwood kraft pulp with a yield of greater than 53% on wood. Details of the development and processing steps, along with various recovery cycle impacts, are discussed.