Pulping and Papermaking of Non-Wood Fibers

Liu, Zhong; Wang, Huimei; Hui, Lanfeng

doi:10.5772/intechopen.79017

Cited by 79 publications

(54 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Cooking pulp from NWPM in alkaline liquor is predominant because lignin from NWPM has a lower molecular weight than softwood lignin [37]. During cooking in an alkaline solution, the main ingredient of hemicellulose, xylan, is easily dissolved, which also opens additional channels for the cooking solution to penetrate into lignin, thereby facilitating the removal of lignin from the cell wall [46]. Alkaline methods for producing pulp from non-wood plants also include the NACO method based on alkaline oxygen cooking and the SAICA method.…”

Section: Preparation Of Nanocellulosementioning

confidence: 99%

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Барбаш¹,

Yaschenko²

2021

Novel Nanomaterials

View full text Add to dashboard Cite

The chapter describes the chemical structure and hierarchical organization of cellulose fibers, characteristics of non-wood plant raw materials (NWPM), and methods for preparing pulp and nanocellulose (NC). NWPM have the necessary reserves and properties to make up for a possible shortage of wood fiber for pulp production. The methodology for evaluating the efficiency of the delignification processes of plant raw materials is presented. A two-stage technology for producing pulp for the preparation of NC by environmentally friendly organosolvent methods of NWPM delignification is proposed. Methods for preparing nanocellulose are described. The technological parameters of the extraction of NC from pulp are discussed. The influence of NC on the properties of composite materials is analyzed. Areas of use for NC from NWPM are shown.

show abstract

Section: Preparation Of Nanocellulosementioning

confidence: 99%

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Барбаш¹,

Yaschenko²

2021

Novel Nanomaterials

View full text Add to dashboard Cite

show abstract

“…Nos dois casos, os teores de lignina total, embora menores, foram semelhantes aos valores médios encontrados em madeiras, como o eucalipto (25-30%) e pinus (23-28%) (Benites et al, 2018;Edmunds et al, 2017;Jardim et al, 2017). No entanto, algumas matérias-primas podem apresentar teores elevados de lignina, afetando o processo de polpação, como é o caso de outras fibras não madeireiras (Liu et al, 2018), abetos e espécies nativas euroasiáticas (Wang et al 2018). Além disso, fatores fenotípicos, como a influência climática e qualidade dos solos, podem afetar essa variável, apesar de ela apresentar elevada herdabilidade (Golle et al, 2009).…”

Section: Tabela 3 Composição Química Percentual Dos Materiaisunclassified

“…(Ashori, 2006). Nesses países, cerca de 70% das matérias-primas usadas para produção de celulose e papel são provenientes de fibras não madeireiras (Liu et al, 2018).…”

Section: Introductionunclassified

“…Sendo assim, fibras não madeireiras podem se tornar fontes alternativas de matéria-prima para essas indústrias em relação às convencionais. Elas são derivadas de plantas mono ou dicotiledôneas que não apresentam crescimento secundário (Han, 1998;Liu et al, 2018), provenientes de plantas anuais, assim como resíduos gerados durante sua produção. Existem alguns estudos que recomendam a utilização de palha de trigo (Bian et al, 2019;Deniz et al, 2004), palha de cana (Azzini et al, 1996;Novo et al, 2018), bambu (Bilesky et al, 2014), talos de milho (Cheşcă et al, 2018;Reddy & Yang, 2005), linho, cânhamo, juta (Marques et al, 2010), kenaf (Barbash et al, 2018;Ververis et al, 2004), junco (Wille et al, 2017), entre outros materiais como potenciais fontes de fibras para polpação.…”

Section: Introductionunclassified

“…O uso de fibras não madeireiras possui diversas vantagens para a polpação. Estas podem requerer menor quantidade de químicos e tempo durante a polpação, há maior aproveitamento de resíduos, menor ciclo de produção, maior rendimento por hectare, além de serem materiais de baixo custo em muitos casos (Hammett et al, 2001;Liu et al, 2018). Outra possibilidade é o uso desses tipos de fibra para a produção sustentável de celulose nanofibrilada para a fabricação de papéis reforçados e outros materiais nanocelulósicos (Fonseca et al, 2019).…”

Section: Introductionunclassified

See 2 more Smart Citations

Avaliação das propriedades do bagaço de cana e bambu para produção de celulose e papel

Pego

Bianchi

Veiga

2019

RCA

View full text Add to dashboard Cite

The raw materials commonly used to produce pulp and paper in Brazil are woods from planted forests. Although with tremendous potential, the use of non-wood fibers is inexpressive. This study thus aimed to evaluate the use of sugarcane bagasse and bamboo to produce pulp and paper via physical, chemical and anatomical characterization, and to verify the influence of its properties on the process and the final product. Anatomical analysis of the fibers was performed (length and width from fibers and vessels, lumen width and cell wall thickness), as well as chemical component analysis (cellulose, hemicellulose, lignin, extractives and ash) and basic density of the materials. Moreover, felting rate, Runkel, Mulsteph and Boiler indexes, flexibility coefficient and wall fraction were generated. Results showed that both materials differed statistically in chemical properties, except for lignin content; density and anatomical properties, excluding vessel width and felting rate. Bamboo presented higher values cellulose (52.96%), minerals (2.34%), density (0.461 g/ cm³), wall fraction (67.84%) and Runkel (2.11), Mulsteph (0.90) and Boiler indices (0.81) values, whereas sugarcane bagasse presented higher hemicellulose (17.63%), extractives (12.81%) and flexibility coefficient (46.19%) values. Most properties were similar to those observed in raw materials commonly used for this purpose. Therefore, these two materials have potential for use in the pulp and paper industries.

show abstract

Alternative initiatives for non‐wood chemical pulping and integration with the biorefinery concept: A review

Jahan

Rahman

2020

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

Conventional pulping processes, such as soda, soda‐Antraquinone (AQ), and kraft, are currently used for non‐wood pulping. The main challenges of non‐wood pulping in conventional pulping processes are (1) large amounts of silica cause silica‐related operational difficulties in the process; (2) large amounts of fines/parenchyma cells decrease the drainage; and (3) the bulky nature of raw materials increases the collection/transportation cost, hampering large‐scale commercial operations. Alternative pulping processes are therefore being developed. This paper reviews the current status of alternative non‐wood pulping processes and their integration with the biorefinery concept. Several promising methods have been investigated at the laboratory or pilot scale. Organic acid and potassium hydroxide pulping processes are attractive alternatives for non‐wood pulping. Dissolved lignin and hemicelluloses in spent liquor can lead to the production of valuable co‐products, fitting well with the integrated biorefinery concept. Non‐wood biomass can be important raw material for pulping in forest‐deficient countries. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd

show abstract

Pulping and Papermaking of Non-Wood Fibers

Cited by 79 publications

References 23 publications

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Preparation, Properties and Use of Nanocellulose from Non-Wood Plant Materials

Avaliação das propriedades do bagaço de cana e bambu para produção de celulose e papel

Alternative initiatives for non‐wood chemical pulping and integration with the biorefinery concept: A review

Contact Info

Product

Resources

About