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Journal articles
Magazine articles
Open Access
Modeling the influence of forming fabric structure on vacuum

Modeling the influence of forming fabric structure on vacuum box dewatering, TAPPI JOURNAL August 2017

Journal articles
Magazine articles
Open Access
Fractional pulping of packaging board in high consistency drum pulping, TAPPI JOURNAL February 2017

Fractional pulping of packaging board in high consistency drum pulping, TAPPI JOURNAL February 2017

Journal articles
Magazine articles
Open Access
Physical handsheet properties of pulp furnishes containing attritor-treated fibers, TAPPI JOURNAL January 2017

Physical handsheet properties of pulp furnishes containing attritor-treated fibers, TAPPI JOURNAL January 2017

Journal articles
Magazine articles
Open Access
Paper coated with sonochemically synthesized zinc oxide nanoparticles: Enhancement of properties for preservation of documents, TAPPI JOURNAL January 2017

Paper coated with sonochemically synthesized zinc oxide nanoparticles: Enhancement of properties for preservation of documents, TAPPI JOURNAL January 2017

Journal articles
Magazine articles
Open Access
Finite element analysis of the thermal bending of a chilled

Finite element analysis of the thermal bending of a chilled cast thermo roll, TAPPI JOURNAL June 2017

Journal articles
Magazine articles
Open Access
An easy and reliable method for syringyl:guaiacyl ratio mea

An easy and reliable method for syringyl:guaiacyl ratio measurement, TAPPI JOURNAL March 2017

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.

Journal articles
Magazine articles
Open Access
Adsorption performance of magnetic aminated lignin for the removal of Cu(II) and Cd(II), TAPPI Journal January 2019

Adsorption performance of magnetic aminated lignin for the removal of Cu(II) and Cd(II), TAPPI Journal January 2019

Journal articles
Magazine articles
Open Access
Characterization and evaluation of antioxidation of lignin from bamboo powder using a formic acid-catalyzed ethanol organosolv process, TAPPI JOURNAL January 2019

Characterization and evaluation of antioxidation of lignin from bamboo powder using a formic acid-catalyzed ethanol organosolv process, TAPPI JOURNAL January 2019