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Open Access
Alternative “green” lime kiln fuels: Part I—Pulping/recovery byproducts, TAPPI Journal May 2020

ABSTRACT: This paper is the first of a two-part series on “green” lime kiln fuels. The first part of this work reviews the use of pulp mill and recovery byproducts as either full or partial replacement of oil or natural gas in the kiln. The second part reviews the use of various forms of woody biomass, bio-oils, gasification, and hydrogen as potential carbon neutral or carbon-free lime kiln fuels.

Journal articles
Magazine articles
Open Access
Editorial: Foam forming: Technology of many opportunities, TAPPI JOURNAL August 2019

ABSTRACT: Over the past ten years, the forest sector has faced big changes due to the decreased demand of printing papers and the fast growth in packaging and tissue products. Weekly news on the marine waste problem and global warming have raised public awareness and stimulated increased interest in bio-based materials, chemicals, and fuels.

Journal articles
Magazine articles
Open Access
Editorial: Collaboration: A necessary  recipe for technological growth, TAPPI Journal September 2021

ABSTRACT: Ongoing crisis situations, such as COVID-19 and the oil spill on the Orange County beaches in California, clearly highlight the need for various forms of collaboration, be it technical or trade. Technological growth in any sector these days depends on knowhow from multiple fields.

Journal articles
Magazine articles
Open Access
On the usage of online fiber measurements for predicting bleached eucalyptus kraft pulp tensile index — an industrial case, TAPPI Journal July 2022

ABSTRACT: Cellulose pulp’s physical-mechanical properties are determined by laboratory tests obtained from prepared handsheets. However, this procedure is time intensive and presents a lead time until the results are available, hindering its utilization for monitoring and decision-making in a pulp mill. In this context, developing real-time solutions for physical-mechanical properties prediction is fundamental. This work applied a mathematical modeling approach to develop a soft sensor for tensile index monitoring. The mathematical model considers online morphology measurements obtained from the last bleaching stage outlet stream and important process variables for tensile index prediction. The results obtained are satisfactory compared to laboratory results, presenting a mean absolute percentual error of 2.5%, which agrees with the laboratory testing method’s reproducibility.

Journal articles
Magazine articles
Standards
Open Access
On-machine visible dirt measurement on moving sheets and the relationships to standard laboratory methods, TAPPI Journal August 2020

ABSTRACT: There has been a proliferation of new sensors to measure on-machine dirt specks that employ different technologies and methodologies to perform measurements. The differences in the on-machine technologies are discussed in terms of the TAPPI and ISO standard laboratory test methods with respect to dirt detection using light reflected from, or light transmitted through, the sheet. Also discussed are the requirements for measuring sta-tistically representative areas of the sheet; the difference between the dirt physical size and Equivalent Black Area (EBA) size; and the implication of these issues when specifying cleanliness acceptance criteria.This technical brief describes on-machine visible dirt measurement’s relationship to standard laboratory testing.

Journal articles
Magazine articles
Standards
Open Access
Relating bending stiffness measurements across various free span lengths, TAPPI Journal August 2020

ABSTRACT: Bending stiffness should be an intrinsic property of a material, so it is puzzling that the TAPPI Standard Test Method T 836 “Bending stiffness, four point method” specifies span lengths when testing different types of corrugated fiberboard. These specified spans often limit the samples that can be measured with this method. To better understand the relationship between bending stiffness and span length, we performed measurements on a range of materials at different spans. The results provide a practical tool enabling comparison of bending stiffness measurements made at various span lengths. Additionally, this note discusses several areas that could serve as the foundation for more fundamental work exploring the bending behavior of corrugated board.

Journal articles
Magazine articles
Open Access
Controlling porosity and density of nanocellulose aerogels for superhydrophobic light materials, TAPPI JOURNAL March 2018

Controlling porosity and density of nanocellulose aerogels for superhydrophobic light materials, TAPPI JOURNAL March 2018

Journal articles
Magazine articles
Open Access
Importance of specimen preparation for edgewise compressive strength (ECT) testing, TAPPI JOURNAL April 2018

Importance of specimen preparation for edgewise compressive strength (ECT) testing, TAPPI JOURNAL April 2018

Journal articles
Magazine articles
Open Access
Magnetization of aminated lignin and characterization, TAPPI JOURNAL January 2019

Magnetization of aminated lignin and characterization, TAPPI JOURNAL January 2019

Journal articles
Magazine articles
Open Access
Editorial: TAPPI Journal 2017 Best Research Paper Award recognizes recycling technology, TAPPI JOURNAL June 2018

Editorial: TAPPI Journal 2017 Best Research Paper Award recognizes recycling technology, TAPPI JOURNAL June 2018

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