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Black Liquor Evaporators Upgrade - Life Cycle Cost Analysis, 20PEERS Conference

Black Liquor Evaporators Upgrade - Life Cycle Cost Analysis, 20PEERS Conference

Long-Term Corrosion Studies Of Pine Derived Bio-Oil And Blends With Heavy Fuel Oil, 20PEERS ConferenceLong-Term Corrosion Studies Of Pine Derived Bio-Oil And Blends With Heavy Fuel Oil, 20PEERS Conference

Long-Term Corrosion Studies Of Pine Derived Bio-Oil And Blends With Heavy Fuel Oil, 20PEERS Conference

Development of additive transfer and dosing system with straight forward steps improves cleanliness, quality and runnability, 19PaperCon

Development of additive transfer and dosing system with straight forward steps improves cleanliness, quality and runnability, 19PaperCon

Strength Development During Drying Possibilities with A Different Wet Strength Testing Approach, 19PaperCon

Strength Development During Drying Possibilities with A Different Wet Strength Testing Approach, 19PaperCon

A novel unit operation to remove hydrophobic contaminants, TAPPI Journal April 2020

ABSTRACT: For mills making paper with recovered fiber, removal of hydrophobic contaminants is essential for trouble-free operation of paper machines. Significant cost savings on paper machine operation can be achieved by reducing deposits, which results in better quality, reduced downtime, increased fiber yield, and reduced energy consumption. Bubble nucleation separation (BNS) is a relatively new process for removing hydrophobic particles. When vacuum is applied to a slurry, dissolved gas bubbles nucleate on hydrophobic particles and drag them to the surface for easy removal. We constructed a 16-L batch unit to evaluate the effect of operating parameters on removal of hydrophobic particles, using statistical design of experiments. These results were used to guide our design of a 16-L continuous unit. We tested this unit on laboratory and mill samples. The removal of 60%•80% of hydrophobic particles was achieved with a low reject rate of < 2%.Following on this success, we built a 200-L pilot unit and tested it in our pilot plant. With promising results there, we installed the pilot unit at a commercial paper recycling mill. Over the course of several mill trials, we showed that it was possible to remove a considerable amount of suspended solids from paper machine white water with less than 2% rejects. Unfortunately, due to the unit only treating 50 L/min and the mill flow being 12000 L/min, we were not able treat a sufficient portion of the white water to know whether a large-scale implementation of BNS would improve paper machine runnability.

Investigation of the Lightweight Potential and Mechanical Properties of Paper Folding Cores, TAPPICon 2023

Biofuel Firing in Fluidized Bed Boilers - an Opportunity for Green Electricity, 2008 Engineering, Pulping and Environmental Conference

Biofuel Firing in Fluidized Bed Boilers - an Opportunity for Green Electricity, 2008 Engineering, Pulping and Environmental Conference

Water Use and Effluent Treatment in Canadian High Yield Pulp Mills, 2008 Engineering, Pulping and Environmental Conference

Water Use and Effluent Treatment in Canadian High Yield Pulp Mills, 2008 Engineering, Pulping and Environmental Conference

CURRENT STATUS OF ALTERNATIVE FUEL USE IN LIME KILNS, 2008 Engineering, Pulping and Environmental Conference

CURRENT STATUS OF ALTERNATIVE FUEL USE IN LIME KILNS, 2008 Engineering, Pulping and Environmental Conference

Deinking of Flexographic Newsprint, 2008 Engineering, Pulping and Environmental Conference

Deinking of Flexographic Newsprint, 2008 Engineering, Pulping and Environmental Conference