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Conference papers
HOW CAN I MAKE SENSE OF ALL THIS DATA?, 19PEERS
HOW CAN I MAKE SENSE OF ALL THIS DATA?, 19PEERS
Journal articles
Magazine articles
How to use total dissolved solids measurements to evaluate the performance of diffuser washers—A mill study, TAPPI Journal April 2020
ABSTRACT: Various types of pulp washing equipment are available. Each washing device has a unique mechanical construction, and the washing principle is often a combination of dilution, thickening, and displacement washing. In this work, the performance of the pressure diffuser washer is studied. In stepwise trials, the effect of the feed and discharge consistencies on the performance of the diffuser was studied. The effect of the downward velocity of the screen on the pressure diffuser’s washing efficiency was also studied. The measurement of total dissolved solids (TDS) by a process refractometer was used as a wash loss measurement unit and the refractometer’s results were used in the calculations of standardized Nordén efficiency (E10) values. The chemical oxygen demand (COD) and conductivity values were also measured and their results compared to the TDS results.The results indicated that feed consistency has a significant effect on the performance and effectiveness of the diffuser washers in the mill. It can also be stated that when the downward velocity of the screen is adjusted to too high a level, the washing efficiency of the pressure diffuser decreases. As a conclusion from the mill tests, it can be stated that even small process parameter changes can provide enhanced diffuser washing at the beginning of the washing line, which has a direct effect on the performance of post-oxygen washing.
Conference papers
Singlet Oxygen Generated Onsite for Safely Augmenting or Replacing Existing Chlorine Bleaching Stages, 2018 PEERS
Singlet Oxygen Generated Onsite for Safely Augmenting or Replacing Existing Chlorine Bleaching Stages, 2018 PEERS
Journal articles
Magazine articles
Mechanical modification of softwood pulp fibers using a novel lightweight vertical bar plate, TAPPI Journal April 2021
ABSTRACT: Refiner plates made using sand casting have a draft angle, which results in a trapezoidal bar shape. These trapezoidal bar plates have a limited throughput compared to the vertical bar plates, and eventually the edges of the bars become dull, resulting in longer time to reach the target freeness and shorter service life. The new light-weight refiner plate with a bar insertion method into a plate base was developed by selecting an aluminium-based alloy as the plate base material and a stainless steel alloy with high wear resistance as the bar material. The light-weight plate with sharp bar edges was very effective in reducing refining energy by reaching the target freeness faster than the sand-cast bar plate. Finally, the lightweight sharp bar plate, which weighed only about half the weight of the cast bar plate, was expected to significantly contribute to easy replacement, improved paper quality, and larger throughput without excessive loss of fiber length.
New Test Method for Scale Removal and Development of Digester Scale Inhibitors, 2013 PEERS Conference
New Test Method for Scale Removal and Development of Digester Scale Inhibitors, 2013 PEERS Conference
Conference papers
Optimize Black Liquor Recovery Throughput and Increase Campa
Optimize Black Liquor Recovery Throughput and Increase Campaign Life with Chemical Additives, 2016 PEERS
Conference papers
Improve Lime Mud Kiln Operation By Controlling Mud Moisture
Improve Lime Mud Kiln Operation By Controlling Mud Moisture Using an Inside-The-Dryer Moisture Sensor, 2016 PEERS
Conference papers
Pulping Advantages of Zip-lignin Hybrid Poplar, 2016 Pulping
Pulping Advantages of Zip-lignin Hybrid Poplar, 2016 PEERS
Conference papers
Novel Technologies for Online Kappa Number Measurement Bring
Novel Technologies for Online Kappa Number Measurement Bring Opportunities for Improved Digester Control, 2016 PEERS
Conference papers
The Evolution of LignoBoost Technology and the Refining of L
The Evolution of LignoBoost Technology and the Refining of Lignin for End Product Uses • Part 1, 2016 PEERS