國立虎尾科技大學 |

Fundamental Evaluation of Non-Wood Fibers to Enhance Their Utilization in the Pulp and Paper Industry.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Fundamental Evaluation of Non-Wood Fibers to Enhance Their Utilization in the Pulp and Paper Industry./
作者:	Kumar, Rajnish.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
面頁冊數:	252 p.
附註:	Source: Dissertations Abstracts International, Volume: 84-09, Section: B.
Contained By:	Dissertations Abstracts International84-09B.
標題:	Lignocellulose. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30308519
ISBN:	9798374475814

Fundamental Evaluation of Non-Wood Fibers to Enhance Their Utilization in the Pulp and Paper Industry.
Kumar, Rajnish.

Fundamental Evaluation of Non-Wood Fibers to Enhance Their Utilization in the Pulp and Paper Industry. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 252 p.

Source: Dissertations Abstracts International, Volume: 84-09, Section: B.

Thesis (Ph.D.)--North Carolina State University, 2022.

This item must not be sold to any third party vendors.

The pulp and paper industry relies heavily on virgin fibers from softwoods and hardwoods to produce pulps required for manufacturing paper products. Global sustainability megaforces are putting pressure on the supply and prices of several fiber sources critical to the industry. Lack of flexibility in fiber sourcing and the ever-changing business environment bring vulnerabilities to the paper industry. Hence, it is of great value to the industry to explore a range of alternative fiber sources that could provide increased flexibility in fiber selection.This research investigates crucial factors regarding the use of alternative non-wood fibers in the pulp and paper industry. A discussion was presented about the physicochemical properties of non-wood fibers to understand their idiosyncratic characteristics for identifying best-fit applications. The second part of the study focused on solving process limitations associated with the usage of non-wood fibers in the paper industry. The results from this study will contribute toward identifying alternative fiber sources and developing a small-scale low chemical intensity pulping process suitable for non-wood fibers to produce high-yield pulps for target applications.In the first study, a comprehensive literature review was conducted to understand nonwood fibers' properties, conversion technologies, and current market opportunities to increase their adoption in the industry. This study revealed that the renewability, recyclability, and biodegradability of non-wood fibers give them an edge over fossil fuel based fibers in the field of specialty papers and non-woven applications. However, higher costs and a limited supply of pulps from these natural non-wood fibers force manufacturers to look for alternative substitutes. Hence, new pulping methods that are economically efficient on the scale of non-wood pulp mills need to be developed to make these fibers competitive in the marketplace. Furthermore, reproducible fiber properties, reliable supply, and stable market prices are paramount in order to take advantage of the current market opportunities for natural non-wood fibers.The second study aims to understand the feasibility of upgrading agricultural residue fibers as a cost-effective and sustainable substitute for softwood pulps for producing highperformance tissue products. The study demonstrated that fique residue could be upgraded into high-quality pulp using a simple mechanical cleaning and mild pulping and bleaching process. Comparison with NBSK (northern bleached softwood kraft) market pulp reveals that fique residue pulp has similar morphological and strength properties but provides a superior combination of water absorbency and softness properties than the NBSK market pulp in tissue products. Promising results from this study show the potential of upgrading agricultural residue into value-added products, which will open a new revenue stream for small farmers in the fique producing countries and will provide flexibility in fiber sourcing for the manufacturer of tissue papers.A literature search in the first study revealed a high demand for long-fibered cellulosic pulps in high-value specialty paper products. Thus, the third study was aimed at understanding the potential of decorticated fique fibers from Colombia for producing specialty paper products. Papermaking properties of bleached soda pulp from the decorticated fique fibers were comprehensively benchmarked against specialty pulps such as abaca, sisal, and NBSK market pulp. Results from this study show that fique fibers have better strength properties than sisal and NBSK pulps and better air permeability than NBSK and abaca pulps.

ISBN: 9798374475814Subjects--Topical Terms:

1106558
Lignocellulose.

Fundamental Evaluation of Non-Wood Fibers to Enhance Their Utilization in the Pulp and Paper Industry.
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520 $a The pulp and paper industry relies heavily on virgin fibers from softwoods and hardwoods to produce pulps required for manufacturing paper products. Global sustainability megaforces are putting pressure on the supply and prices of several fiber sources critical to the industry. Lack of flexibility in fiber sourcing and the ever-changing business environment bring vulnerabilities to the paper industry. Hence, it is of great value to the industry to explore a range of alternative fiber sources that could provide increased flexibility in fiber selection.This research investigates crucial factors regarding the use of alternative non-wood fibers in the pulp and paper industry. A discussion was presented about the physicochemical properties of non-wood fibers to understand their idiosyncratic characteristics for identifying best-fit applications. The second part of the study focused on solving process limitations associated with the usage of non-wood fibers in the paper industry. The results from this study will contribute toward identifying alternative fiber sources and developing a small-scale low chemical intensity pulping process suitable for non-wood fibers to produce high-yield pulps for target applications.In the first study, a comprehensive literature review was conducted to understand nonwood fibers' properties, conversion technologies, and current market opportunities to increase their adoption in the industry. This study revealed that the renewability, recyclability, and biodegradability of non-wood fibers give them an edge over fossil fuel based fibers in the field of specialty papers and non-woven applications. However, higher costs and a limited supply of pulps from these natural non-wood fibers force manufacturers to look for alternative substitutes. Hence, new pulping methods that are economically efficient on the scale of non-wood pulp mills need to be developed to make these fibers competitive in the marketplace. Furthermore, reproducible fiber properties, reliable supply, and stable market prices are paramount in order to take advantage of the current market opportunities for natural non-wood fibers.The second study aims to understand the feasibility of upgrading agricultural residue fibers as a cost-effective and sustainable substitute for softwood pulps for producing highperformance tissue products. The study demonstrated that fique residue could be upgraded into high-quality pulp using a simple mechanical cleaning and mild pulping and bleaching process. Comparison with NBSK (northern bleached softwood kraft) market pulp reveals that fique residue pulp has similar morphological and strength properties but provides a superior combination of water absorbency and softness properties than the NBSK market pulp in tissue products. Promising results from this study show the potential of upgrading agricultural residue into value-added products, which will open a new revenue stream for small farmers in the fique producing countries and will provide flexibility in fiber sourcing for the manufacturer of tissue papers.A literature search in the first study revealed a high demand for long-fibered cellulosic pulps in high-value specialty paper products. Thus, the third study was aimed at understanding the potential of decorticated fique fibers from Colombia for producing specialty paper products. Papermaking properties of bleached soda pulp from the decorticated fique fibers were comprehensively benchmarked against specialty pulps such as abaca, sisal, and NBSK market pulp. Results from this study show that fique fibers have better strength properties than sisal and NBSK pulps and better air permeability than NBSK and abaca pulps.
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