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Magazine articles
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.
Journal articles
Economics of coated paper production made from deinked pulp, TAPPI JOURNAL April 2013
Economics of coated paper production made from deinked pulp, TAPPI JOURNAL April 2013
Journal articles
Influence of forming conditions on fiber tilt, TAPPI JOURNAL April 2013
Influence of forming conditions on fiber tilt, TAPPI JOURNAL April 2013
Journal articles
Southern pine oxygen delignified pulps produced in a Berty throughflow reactor: How to obtain the highest degree of delignification while maintaining pulp yield and quality, TAPPI JOURNAL March 2012
Southern pine oxygen delignified pulps produced in a Berty throughflow reactor: How to obtain the highest degree of delignification while maintaining pulp yield and quality, TAPPI JOURNAL March 2012
Journal articles
Stoichiometric model of chlorine dioxide delignification of softwood kraft pulps with oxidant-reinforced extraction, TAPPI JOURNAL March 2012
Stoichiometric model of chlorine dioxide delignification of softwood kraft pulps with oxidant-reinforced extraction, TAPPI JOURNAL March 2012
Journal articles
Bleaching of eucalyptus kraft pulps with chlorine dioxide: Factors affecting the efficiency of the final D stage, TAPPI JOURNAL March 2012
Bleaching of eucalyptus kraft pulps with chlorine dioxide: Factors affecting the efficiency of the final D stage, TAPPI JOURNAL March 2012
Journal articles
Assessment of pulp machine white water quality at market kraft pulp mills, TAPPI JOURNAL March 2012
Assessment of pulp machine white water quality at market kraft pulp mills, TAPPI JOURNAL March 2012
Journal articles
Effect of black liquor replacement in wheat straw soda-AQ cooking and lignin structure of pulps, TAPPI JOURNAL May 2012
Effect of black liquor replacement in wheat straw soda-AQ cooking and lignin structure of pulps, TAPPI JOURNAL May 2012
Journal articles
Scaling risk assessment in a closed circuit recycled board mill by speciation methods, TAPPI JOURNAL May 2012
Scaling risk assessment in a closed circuit recycled board mill by speciation methods, TAPPI JOURNAL May 2012
Journal articles
Magazine articles
Pulp and paper mills: The original biorefineries — past performance and limitations to future opportunities, TAPPI Journal October 2023
ABSTRACT: Pulp mills have been biorefineries since the invention of the Tomlinson recovery boiler. Unfortunately, the paper industry has done a poor job explaining that concept to the general public. A number of bioproducts in everyday use have been produced by pulp mills for several decades, and new products are routinely being developed. Modern research efforts over the last couple of decades have focused on producing even more products from pulp and paper mills through capacity enhancement and the development of value-added products and liquid transportation fuels to enhance paper mill profitability. Some of these efforts, often referred to as modern biorefineries, have focused so heavily on product development that they have ignored operating and process realities that limit the transformation of pulp and paper mills from the current limited number of bioproducts produced today to economic scale production of these value-added products. In this paper, several of these limitations are addressed. In addition, there are several supply chain, marketing, product quality, and economic realities limiting the value potential for these wholesale conversions of pulp mills into multiproduct modern biorefineries. Finally, the conservative nature and capital intensity of the pulp and paper industries provide a difficult hurdle for conversion to the modern biorefinery concept. These issues are also reviewed.