Beating Behaviour and Sheet Strength Development of Coniferous Organosolv Fibers

Paszner, L.; Behera, Nikhil Chandra

doi:10.1515/hfsg.1985.39.1.51

Cited by 31 publications

(13 citation statements)

References 7 publications

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“…Research in this area was motivated by the need to address environmental issues -related to the sulphur containing wastes of the traditional kraft and sulphite pulping methods-and develop simpler, higher yield and more economically feasible alternatives. The requirements of a new pulping method were summarized in the literature [27,38,39] and include the ability to produce pulps similar to those of the kraft process at a reduced cost; elimination of reagents such are sulphides, strong acids and bases; extensive and selective lignin removal with minimal carbohydrates loss from the pulp; fewer delignification and fiber liberation steps; a simple recovery system; reduction of environmental issues; reduction of water consumption; and finally, improved economics via the utilization of potentially profitable by-products (lignin and sugars).…”

Section: Organosolv Pulpingmentioning

confidence: 99%

“…One of the most promising pretreatment processes to fulfil this requirement is the organosolv pulping. Originally developed as an alternative greener paper pulping process [27], organosolv soon attracted research interest due to its ability not only to remove the hemicellulose and lignin barriers of enzymatic hydrolysis of cellulose but also because it could effectively fractionate the three biomass components in one step, fulfilling the requirements for the lignin-first and biorefinery concept.…”

Section: Introductionmentioning

confidence: 99%

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Organosolv Fractionation of Softwood Biomass for Biofuel and Biorefinery Applications

2017

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Softwoods represent a significant fraction of the available lignocellulosic biomass for conversion into a variety of bio-based products. Its inherent recalcitrance, however, makes its successful utilization an ongoing challenge. In the current work the research efforts for the fractionation and utilization of softwood biomass with the organosolv process are reviewed. A short introduction into the specific challenges of softwood utilization, the development of the biorefinery concept, as well as the initial efforts for the development of organosolv as a pulping method is also provided for better understanding of the related research framework. The effect of organosolv pretreatment at various conditions, in the fractionation efficiency of wood components, enzymatic hydrolysis and bioethanol production yields is then discussed. Specific attention is given in the effect of the pretreated biomass properties such as residual lignin on enzymatic hydrolysis. Finally, the valorization of organosolv lignin via the production of biofuels, chemicals, and materials is also described.

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Section: Organosolv Pulpingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Organosolv Fractionation of Softwood Biomass for Biofuel and Biorefinery Applications

2017

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“…Composites reinforced with only organosolv pulped sisal also provided lower toughness than composites reinforced with unrefined kraft pulp according to previous work 29 . Young 37 suggested that, in general, the strength properties of organosolv pulps are inferior to those of corresponding kraft pulps, what may be related with the great amount of polyoses solubilized 38 . There may be significant contribution to the decay of the reinforcement capacity with the consequent fragile behaviour of the composite.…”

Section: Mechanical Results Of the Compositesmentioning

confidence: 99%

Sisal organosolv pulp as reinforcement for cement based composites

et al. 2009

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The present work describes non-conventional sisal (Agave sisalana) chemical (organosolv) pulp from residues of cordage as reinforcement to cement based materials. Sisal organosolv pulp was produced in a 1:1 ethanol/water mixture and post chemically and physically characterized in order to compare its properties with sisal kraft pulp. Cement based composites reinforced with organosolv or kraft pulps and combined with polypropylene (PP) fibres were produced by the slurry de-watering and pressing method as a crude simulation of the Hatschek process. Composites were evaluated at 28 days of age, after exposition to accelerated carbonation and after 100 soak/dry cycles. Composites containing organosolv pulp presented lower mechanical strength, water absorption and apparent porosity than composites reinforced with kraft pulp. The best mechanical performance after ageing was also achieved by samples reinforced with kraft pulp. The addition of PP fibres favoured the maintenance of toughness after ageing. Accelerated carbonation promoted the densification of the composites reinforced with sisal organosolv + PP fibres.

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“…None of these proved to be successful on an industrial scale. The pulp yield is high, and the quality is comparable to that of the kraft process for fibers made from the same species (Paszner and Behera 1985;Yawalata and Paszner 1997). A wide variety of biomass has been digested by the NAEM process with equal efficiency (Paszner andBehera 1985, 1989;Chang and Paszner 1986;Paszner and Cho 1989;Quinde and Paszner 1992;Yawalata 1996Yawalata , 2001Yawalata and Paszner 2004a,b).…”

Section: Introductionmentioning

confidence: 87%

Characteristics of NAEM salt-catalyzed alcohol organosolv pulping as a biorefinery

Yawalata

Paszner

2006

Holzforschung

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Characteristics of the NAEM wneutral alkali-earth metal; CaCl 2 and Mg(NO 3 ) 2 in this studyx salt-catalyzed alcohol organosolv pulping of softwood were investigated and compared to AlCl 3 -catalyzed kraft pulping. The catalysts control the acidity of the cooking liquor, which is the key factor for pulping selectivity and fiber separation. The crucial role of catalysts in alcohol organosolv pulping is demonstrated. The pulp yield and quality were satisfactory. The dissolved wood components in the spent liquor have high potential to be converted into value-added coproducts.

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Beating Behaviour and Sheet Strength Development of Coniferous Organosolv Fibers

Cited by 31 publications

References 7 publications

Organosolv Fractionation of Softwood Biomass for Biofuel and Biorefinery Applications

Organosolv Fractionation of Softwood Biomass for Biofuel and Biorefinery Applications

Sisal organosolv pulp as reinforcement for cement based composites

Characteristics of NAEM salt-catalyzed alcohol organosolv pulping as a biorefinery

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