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Journal articles
Beyond Kraft? Is kraft pulping as good as it gets?
Guest Editorial: Beyond kraft? Is kraft pulping as good as it gets?, TAPPI JOURNAL October 2014
Journal articles
Introduction to the Agenda 2020 Next Generation Chemical Pulping Subgroup
Introduction to the Agenda 2020 Next Generation Chemical Pulping Subgroup, TAPPI JOURNAL October 2014
Journal articles
Anthraquinone-a review of the rise and fall of a pulping catalyst
Anthraquinone-a review of the rise and fall of a pulping catalyst, TAPPI JOURNAL October 2014
Journal articles
Enhancing yield through high-kappa pulping
Enhancing yield through high?kappa pulping, TAPPI JOURNAL October 2014
Journal articles
A new sensor and a novel control concept for optimized fiber line operation
A new sensor and a novel control concept for optimized fiber line operation, TAPPI JOURNAL October 2014
Journal articles
Magazine articles
Editorial: TAPPI Journal goes Open Access in 2020, TAPPI Journal October 2019
ABSTRACT: Scientific publishing has changed significantly since the 1990s with the evoluation of the internet, which has largely migrated journals from subscription-based print publications to online content like eBooks, portable document formats (PDFI's), and web-based HTML files. Along with these changes in format has come a growing trend for online journal content to be either partially or fully "Open Access" (OA) so that more institutions and individuals can take full advantage of scholarly literature without a subscription of society membership status.
Journal articles
Magazine articles
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
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
Editorial: Revisiting recycling forums past, TAPPI JOURNAL J
Editorial: Revisiting recycling forums past, TAPPI JOURNAL January 2016
Journal articles
Press wetting as an enhanced wetting method for baled OCC ma
Press wetting as an enhanced wetting method for baled OCC material, TAPPI JOURNAL January 2016