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Journal articles
Open Access
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
Open Access
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
Black liquor gasification with direct Causticization using titanates in a Pressurized entrained-flow reactor. part i: kinetics of the causticization reaction , Journal of Pulp and Paper Science, April 2003, Vol. 29(4) (433KB)

Black liquor gasification with direct Causticization using titanates in a Pressurized entrained-flow reactor. part i: kinetics of the causticization reaction , Journal of Pulp and Paper Science, April 2003, Vol. 29(4) (433KB)

Journal articles
Open Access
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.

Journal articles
Open Access
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
Open Access
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.

Water Reclamation: Where Do We Go From Here?, 2008 Engineering, Pulping and Environmental Conference

Water Reclamation: Where Do We Go From Here?, 2008 Engineering, Pulping and Environmental Conference

WWTP Reduced SulfurEmission Measurements, 2008 Engineering, Pulping and Environmental Conference

WWTP Reduced SulfurEmission Measurements, 2008 Engineering, Pulping and Environmental Conference

Algas Fluid Technology Systems as Your Partner in Water Treatment, 2008 Engineering, Pulping and Environmental Conference

Algas Fluid Technology Systems as Your Partner in Water Treatment, 2008 Engineering, Pulping and Environmental Conference

Petroleum Coke (Petcoke) Firing in Lime Kilns & Recovery Boilers Energy savings with Solid Fuel, 2008 Engineering, Pulping and Environmental Conference

Petroleum Coke (Petcoke) Firing in Lime Kilns & Recovery Boilers Energy savings with Solid Fuel, 2008 Engineering, Pulping and Environmental Conference

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