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Understanding and Controlling Colloidal Organics when Mixing TMP and DIP, 2008 Engineering, Pulping and Environmental Conference

Understanding and Controlling Colloidal Organics when Mixing TMP and DIP, 2008 Engineering, Pulping and Environmental Conference

UPDATE OF THE AMERICAN FOREST & PAPER ASSOCIATION RECOVERY BOILER PROGRAM, 2008 Engineering, Pulping and Environmental Conference

UPDATE OF THE AMERICAN FOREST & PAPER ASSOCIATION RECOVERY BOILER PROGRAM, 2008 Engineering, Pulping and Environmental Conference

New Test Method for the Characterization of Paper/ Melamine/ Reactivity, 1996 Plastic Laminates Symposium Proceedings

New Test Method for the Characterization of Paper/ Melamine/ Reactivity, 1996 Plastic Laminates Symposium Proceedings

Biological Treatment of Specialty Paper Mill Effluent, 2008 TAPPI Decorative & Industrial Laminates Symposium

Biological Treatment of Specialty Paper Mill Effluent, 2008 TAPPI Decorative & Industrial Laminates Symposium

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.

An Alternate Approach to Flue Gas Heat Recovery, 2011 PEERS Conference

An Alternate Approach to Flue Gas Heat Recovery, 2011 PEERS Conference

STEADY-STATE ELEMENTAL CHLORINE-FREE (ECF) BLEACH SEQUENCE MODELING FOR OPTIMIZATION: A REVIEW OF TECHNIQUES AND NEW APPLICATIONS, 2011 International Pulp Bleaching Conference

STeady-State ELemental Chlorine-free (ECF) Bleach Sequence Modeling for Optimization: A Review of Techniques and New Applications, 2011 International Pulp Bleaching Conference

Colloidal Fuel Dispersions using Coal, Petroleum Coke and Asphaltite, 2012 TAPPI PEERS Conference

Colloidal Fuel Dispersions using Coal, Petroleum Coke and Asphaltite, 2012 TAPPI PEERS Conference

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