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Conference papers
Extracting Scientific Value from Contact Angle Analysis of Wetting Liquids on Porous Surfaces, 2018 Advanced Coating Symposium

Extracting Scientific Value from Contact Angle Analysis of Wetting Liquids on Porous Surfaces, 2018 Advanced Coating Symposium

Journal articles
Magazine articles
Open Access
Enzymatic treated viscose fibers functionalized by chitosan, TAPPI JOURNAL August 2018

Enzymatic treated viscose fibers functionalized by chitosan, TAPPI JOURNAL August 2018

Journal articles
Magazine articles
Open Access
Effect of pulper consistency on stickies size distribution, TAPPI JOURNAL August 2018

Effect of pulper consistency on stickies size distribution, TAPPI JOURNAL August 2018

Journal articles
Magazine articles
Open Access
Evaluation of novel drum chipper technology: pilot-scale production of short wood chips, TAPPI Journal October 2019

ABSTRACT: Impregnation of wood chips with acidic pulping liquors is improved when using short chip lengths. If the average wood chip length is too short, conventional chipping technology will generate excess small material, such as pin chips and fines. The possibility of using newly developed drum chipping technology to produce short-length wood chips was evaluated with a pilot drum chipper operating at different drum velocities and in-feed angles. With a drum velocity of 30 m/s, the average wood chip lengths and the combined fractions of pin chips and fines were 24 mm and 3.3%, 22 mm and 4.2%, and 17 mm and 8.5%. The highest fractions of total accept chips (large and small accepts), 89% to 90% without screening, were observed for drum velocities of 30•34 m/s and average wood chips lengths of 21•22 mm. The results indicate the potential of drum chipping technology for producing short wood chips with relatively high fractions of accept chips and tolerable fractions of pin chips and fines.

Journal articles
Magazine articles
Open Access
Exergy and sensibility analysis of each individual effect in a kraft multiple effect evaporator, TAPPI Journal October 2019

ABSTRACT: The multiple effect evaporator (MEE) is an energy intensive step in the kraft pulping process. The exergetic analysis can be useful for locating irreversibilities in the process and pointing out which equipment is less efficient, and it could also be the object of optimization studies. In the present work, each evaporator of a real kraft system has been individually described using mass balance and thermodynamics principles (the first and the second laws). Real data from a kraft MEE were collected from a Brazilian plant and were used for the estimation of heat transfer coefficients in a nonlinear optimization problem, as well as for the validation of the model. An exergetic analysis was made for each effect individually, which resulted in effects 1A and 1B being the least efficient, and therefore having the greatest potential for improvement. A sensibility analysis was also performed, showing that steam temperature and liquor input flow rate are sensible parameters.

Conference papers
Nanocellulose and polylactic acid based multilayer coatings for barrier applications, 19PaperCon

Nanocellulose and polylactic acid based multilayer coatings for barrier applications, 19PaperCon

Conference papers
Rheological Characterization of Tack and Viscoelasticity of Compositions of Crepe Coating Used in The Yankee Dryer, 19PaperCon

Rheological Characterization of Tack and Viscoelasticity of Compositions of Crepe Coating Used in The Yankee Dryer, 19PaperCon

Conference papers
A New Era in Mill Analytics, 19PaperCon

A New Era in Mill Analytics, 19PaperCon

Conference papers
Simplified Automatic Nonlinear Grade Change Control for Paper Machines, 19PaperCon

Simplified Automatic Nonlinear Grade Change Control for Paper Machines, 19PaperCon

Conference papers
Creating Adaptive Predictions for Packaging Critical Quality Parameters Using Advanced Analytics and Machine Learning, 19PaperCon

Creating Adaptive Predictions for Packaging Critical Quality Parameters Using Advanced Analytics and Machine Learning, 19PaperCon

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