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Conference papers
Recovery Boiler Inspection Strategy, 2016 Pulping, Engineeri

Recovery Boiler Inspection Strategy, 2016 PEERS

Conference papers
Application of Supply conservation curves to Steam systems i

Application of Supply conservation curves to Steam systems in pulp and paper industry, 2016 PEERS

Conference papers
Increased Efficiency and Operational Availability of Recover

Increased Efficiency and Operational Availability of Recovery Boilers • Risk Assessment, Diagnostics and Optimization, 2016 PEERS

Conference papers
Paper Mill Boiler Chemical Cleaning • Why, When and How, 201

Paper Mill Boiler Chemical Cleaning • Why, When and How, 2016 PEERS

Conference papers
Increasing Lime Kiln Throughput by Addition of Dust Recovery

Increasing Lime Kiln Throughput by Addition of Dust Recovery Cyclones and Flash Dryer Systems, 2016 PEERS

Journal articles
Magazine articles
Open Access
Development of converging-diverging multi-jet nozzles for molten smelt shattering in kraft recovery boilers, TAPPI Journal March 2021

ABSTRACT: The effective shattering of molten smelt is highly desired in recovery boiler systems. Ideally, shatter jet nozzle designs should: i) generate high shattering energy; ii) create a wide coverage; and iii) minimize steam consumption. This study proposes a novel converging-diverging multi-jet nozzle design to achieve these goals. A laboratory setup was established, and the nozzle performance was evaluated by generating jet pressure profiles from the measurement of a pitot tube array. The results show that the shatter jet strength is greater with a large throat diameter, high inlet pressure, and a short distance between the nozzle exit and impingement position. Increasing the number of orifices generates a wider jet coverage, and the distance between the orifices should be limited to avoid the formation of a low-pressure region between the orifices. The study also demonstrates that an optimized converging-diverging multi-jet nozzle significantly outperformed a conventional shatter jet nozzle by achieving higher energy and wider coverage while consuming less steam.

Journal articles
Magazine articles
Open Access
Characterization of chia plant (Salvia hispanica) for pulping, TAPPI Journal October 2020

ABSTRACT: In this paper, chia plant was characterized in terms of chemical, morphological, and anatomical properties. Chia plant was characterized with low a-cellulose (30.5%); moderate lignin (23.2%) with syringyl to guaiacyl ratio of 1.41; and shorter fiber length (0.67 mm) with thinner cell wall (1.91 µm) and good flexibility coefficient (71.44). Anatomical features showed that chia plant consists of vessels, fibers, parenchyma cells, and collenchyma cells. Chia plant pulping was evaluated in soda-anthraquinone (soda-AQ) and formic acid/peroxyformic acid (FA/PFA) processes. Chia plant was difficult to delignify in the alkaline process. The FA/PFA process produced higher pulp yield at the same kappa number than the soda-AQ process. Unbleached soda-AQ chia pulp exhibited good properties in terms of tensile, bursting, and tearing strengths, even at the unrefined stage, due to high drainability of the pulps. Alkaline peroxide bleached FA/PFA pulp exhibited better papermaking properties and 2% higher brightness than the D0(EP)D1 bleached soda-AQ pulp.

Conference papers
When There Are Too Many Choices • Monte Carlo Is The Right Choice, 20PEERS Conference

When There Are Too Many Choices • Monte Carlo Is The Right Choice, 20PEERS Conference

Conference papers
New Learnings and Strategies for Meeting Future Recovery Boiler Particulate Emission Limits with Existing Electrostatic Precipitators, 20PEERS Conference

New Learnings and Strategies for Meeting Future Recovery Boiler Particulate Emission Limits with Existing Electrostatic Precipitators, 20PEERS Conference

Conference papers
Wastewater Microorganisms: Where, When and Why, 2017PEERS

Wastewater Microorganisms: Where, When and Why, 2017PEERS