European hardwoods versus Eucalyptus globulus as a raw material for pulping

Patt, R.; Kordsachia, O.; Fehr, J.

doi:10.1007/s00226-005-0042-9

Cited by 69 publications

(43 citation statements)

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“…The overall amount of hemicelluloses, including substituents, accounted for 30.8% of the raw material [ovendry basis (o.d.b)]. The compositional data determined in this work are in the range reported for birch species Betula verrucosa (Patt et al 2006) and B. pendula (Helmerius et al 2010;Borrega et al 2011;Testova et al 2014).…”

Section: Autohydrolysis: Kinetic Modeling and Selection Of Operationamentioning

confidence: 69%

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Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries

et al. 2016

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Birch samples were subjected to non-isothermal autohydrolysis to obtain a solution of hemicellulosic saccharides and a solid phase mainly made up of cellulose and lignin. Based on kinetic modeling, operational conditions were identified which give rise to soluble saccharides and furfural derived from xylan in a yield of 80.5%. The soluble mixture was supplemented with 1% sulfuric acid and heated (directly or in the presence of methyl isobutyl ketone, MIBK) for furfural production. MIBK is used as an extraction agent to limit furfural consumption by side reactions. Operating in single phase at 170°C, up to 44.8% of the potential substrates were converted into furfural. In experiments performed in biphasic media, the effects of MIBK were assessed by empirical modeling and about 75% of the potential substrates were converted under selected conditions.

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Section: Autohydrolysis: Kinetic Modeling and Selection Of Operationamentioning

confidence: 69%

“…Hardwoods (HW) are important raw materials for pulp production in Europe (Patt et al 2006). Birch (Betula alba) covers about 49 000 ha in northwestern Spain, with an annual harvest volume of 17 000 m 3 (Gorgoso-Varela et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries

et al. 2016

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“…The potential of E. globulus wood for pulp and paper is well known. For E. globulus wood, Patt et al (2006) found RK values of 0.56 and Gominho et al (2014) RK values ranging between 1.0 and 1.9. The RK values found for A. melanoxylon are close to the values reported for E. globulus wood, thus supporting its potential for pulp and paper.…”

Section: A B Cmentioning

confidence: 95%

Characterization and within-tree variation of wood anatomy of Acacia melanoxylon

Santos¹,

Pereira²,

Anjos³

2018

mill

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“…However, due to the higher extractives content in heartwood, when the total lignin is reported to original wood, the values are slightly different: 24.3% and 23.5%, respectively for sapwood and heartwood (Lourenço et al 2010). These are values in the range of values reported for E. globulus wood of 24.2% to 27.9% (Miranda and Pereira 2002b); 24.7% to 31.2% (Poke et al 2006); 25.4% (Ramírez et al 2009); or 24.5% (Rencoret et al 2011), while a somewhat lower value of 21.9% was reported by Patt et al (2006). It is known that such amplitude of values is due to different factors such as wood origin (Miranda and Pereira 2002b;Poke et al 2006) or age of the tree (Miranda and Pereira 2002c).…”

Section: Lignin Determination By Wet Chemistrymentioning

confidence: 56%

Comparison of Py-GC/FID and Wet Chemistry Analysis for Lignin Determination in Wood and Pulps from Eucalyptus globulus

Lourenço¹,

Gominho²,

Marques³

et al. 2013

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The kraft pulps produced from heartwood and sapwood of Eucalyptus globulus at 130 ºC, 150 ºC, and 170 ºC were characterized by wet chemistry (total lignin as sum of Klason and soluble lignin fractions) and pyrolysis (total lignin denoted as py-lignin). The total lignin content obtained with both methods was similar. In the course of delignification, the py-lignin values were higher (by 2 to 5%) compared to Klason values, which is in line with the importance of soluble lignin for total lignin determination. Pyrolysis analysis presents advantages over wet chemical procedures, and it can be applied to wood and pulps to determine lignin contents at different stages of the delignification process. The py-lignin values were used for kinetic modelling of delignification, with very high predictive value and results similar to those of modelling using wet chemical determinations.

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European hardwoods versus Eucalyptus globulus as a raw material for pulping

Cited by 69 publications

References 0 publications

Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries

Furfural production from birch hemicelluloses by two-step processing: a potential technology for biorefineries

Characterization and within-tree variation of wood anatomy of Acacia melanoxylon

Comparison of Py-GC/FID and Wet Chemistry Analysis for Lignin Determination in Wood and Pulps from Eucalyptus globulus

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