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Automating Process Cooling Can Eliminate ´Strainer Danger’, Paper360º January/February 2022
Automating Process Cooling Can Eliminate ´Strainer Danger’, Paper360º January/February 2022
Journal articles
Magazine articles
Machinery That Can Support Zero Landfill Goals, Paper360º January/February 2022
Machinery That Can Support Zero Landfill Goals, Paper360º January/February 2022
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º January/February 2022
TAPPI Journal Summaries, Paper360º January/February 2022
Journal articles
Magazine articles
Turning Pulper Rejects into Valuable Fuel, Paper360º January/February 2022
Turning Pulper Rejects into Valuable Fuel, Paper360º January/February 2022
Journal articles
Magazine articles
Efficiency is Key for High Capacities, Paper360º March/April 2022
Efficiency is Key for High Capacities, Paper360º March/April 2022
Journal articles
Magazine articles
SETPOINT: Let’s Finally Talk About Bruno, Paper360º March/April 2022
SETPOINT: Let’s Finally Talk About Bruno, Paper360º March/April 2022
Journal articles
Magazine articles
Improving refining efficiency with deflocculation, TAPPI Journal May 2022
ABSTRACT: The ability to load a refiner requires the formation of a fiber mat between opposing refiner bars. One of the consequences of this is the formation of flocs that persist through the refiner grooves and exit the refiner. These flocs interfere with sheet strength, requiring additional energy to make up the strength deficit. In addition, flocs can initiate string formation, resulting in machine efficiency issues such as cross-machine profile deterioration and the downtime required to correct it. Novel refiner plate modifications have been shown to improve refining efficiency in otherwise identical refiner plates. Energy savings are typically around 15% of gross refining energy on the basis of the treated stock, although much higher reductions have also been seen. Addressing this previously underappreciated flaw in conventional refining enables greenhouse gas reduction and other benefits related to sheet strength and machine efficiency.
Journal articles
Magazine articles
A new method of studying the fundamental mechanisms involved in pigment liberation from recycle papers, TAPPI Journal October 2022
ABSTRACT: Deinking flotation is the most efficient and widely used method of removing ink particles from printed papers to improve the recyclability. A prerequisite for successful deinking flotation is detachment of pigments from paper fibers, a subprocess known as liberation. The degree of liberation is usually determined via hyperwashing tests, which are costly and time consuming. Furthermore, they provide no information on the fundamental mechanisms controlling liberation. In the present work, we developed a new method in which ?-potentials of the particles in a pulp are measured and analyzed. If pigments are not liberated from paper fibers, a frequency distribution plot gives a single peak, while two peaks appear when they are liberated. One can readily determine the degrees of liberation from the peak positions and peak heights. In addition, the ?-potential data can be used to construct disjoining pressure isotherms using the DLVO theory that are useful to better understand the fundamental mechanisms involved and the roles of different reagents used to improve pigment liberation.
Journal articles
Magazine articles
Reach the Perfect Temperature with Regular Heating System Maintenance, Paper360º September/October 2022