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FEL1 and 2 • The Beginnings of Successful Paper Machine Conversions, 20PEERS Conference

FEL1 and 2 • The Beginnings of Successful Paper Machine Conversions, 20PEERS Conference

How process & mechanical conditions affect lime recovery kiln thrust positions - a review of operations and mechanics for this phenomenon, 20PEERS Conference

How process & mechanical conditions affect lime recovery kiln thrust positions - a review of operations and mechanics for this phenomenon, 20PEERS Conference

Drones for Internal Inspections & Beyond, 2018 PEERS

Drones for Internal Inspections & Beyond, 2018 PEERS

Leaching and Crystallization Methods for Chloride and Potass

Leaching and Crystallization Methods for Chloride and Potassium Removal from Recovery Boiler Fly Ash, 2017PEERS

Maximizing Recovery Boiler Availability with an Online Ash Analyzer and Ash Balance Advisor, 2022PEERS/IBBC Conference (22PEE/22IBB)

Kraft Lignin Production at West Fraser’s Hinton Mill, 2022PEERS/IBBC Conference (22PEE/22IBB)

Utilization of kraft pulp mill residuals, TAPPI Journal February 2022

ABSTRACT: Kraft pulp mills produce on average about 100 kg of solid residuals per metric ton of pulp produced. The main types of mill waste are sludge from wastewater treatment plants, ash from hog fuel boilers, dregs, grits, and lime mud from causticizing plants and lime dust from lime kilns. Of these, about half is disposed of in landfills, which highlights the need and potential for waste recycling and utilization. Sludge is either incinerated in hog fuel boilers to generate steam and power or used in various forms of land application, including land spreading, composting, or as an additive for landfill or mine waste covers. The majority of hog fuel boiler ash and causticizing plant residues is landfilled. Alkaline residuals can be conditioned for use in land application, manufacture of construction materials, and production of aggregates for road work. This technical review summarizes residuals utilization methods that have been applied in pulp and paper mills at demonstration- or full-scale, and therefore may act as a guide for mill managers and operators whose goal is to diminish the costs and the environmental impact of waste management.

Quantification of vegetable oil in recycled paper, TAPPI JOURNAL September 2020

ABSTRACT: Vegetable soybean oil is commonly used in cooking foods that are packaged in takeaway paper-board containers. Vegetable oil is hydrophobic, and in sufficiently high concentration, could interfere with interfiber bonding and result in paper strength loss. In order to quantify the effect of oil on the resulting paperboard strength, it is necessary to quantify the oil content in paper. A lab method was evaluated to determine the soybean oil content in paper. Handsheets were made with pulps previously treated with different proportions of vegetable oil. Pyrolysis gas chromatography-mass spectrometry (pyGCMS) was used to quantify the amount of oil left in the handsheets. The results revealed a strong correlation between the amount of oil applied to the initial pulp and the amount of oil left in the handsheets.In addition, the effect of vegetable oils on paper strength may be affected by the cooking process. Vegetable oil is known to degrade over time in the presence of oxygen, light, and temperature. The vegetable oil was put in an oven to imitate the oil lifecycle during a typical pizza cooking process. The cooked oil was then left at room temperature and not protected from air (oxygen) or from normal daylight. The heated, then cooled, oil was stored over a period of 13 weeks. During this time, samples of the aged oil were tested as part of a time-based degradation study of the cooked and cooled oil.

USING BLEACHING STAGE MODELS FOR BENCHMARKING SOFTWOOD ECF BLEACH PLANTS, 2022PEERS/IBBC Conference (22PEE/22IBB)

A Feasibility Study of Using the Organic Rankine Cycle for Power Generation from the Flue Gases of Revcovery Boilers, 2022PEERS/IBBC Conference (22PEE/22IBB)