Thermal Analysis and Calorimetric Study of the Combustion of Hydrolytic Wood Lignin and Products of Its Pyrolysis

Varfolomeev, Mikhail A.; Грачев, А Н; Макаров, А. А.; Забелкин, С. А.; Emel′yanenko, Vladimir N.; Musin, Timur; Gerasimov, Alexander V.; Нургалиев, Д. К.

doi:10.1007/s10553-015-0586-9

Cited by 18 publications

(7 citation statements)

References 6 publications

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“…Above 200 °C, lignin exhibits a gradual decrease in weight loss and levels off at a 55% weight loss above 600 °C. This is because the thermal breakdown of lignin occurs via two competing reaction paths of the intramolecular condensation and the thermal depolymerization. − …”

Section: Results and Discussionmentioning

confidence: 99%

Hardwood Kraft Lignin-Based Hydrogels: Production and Performance

2018

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In this study, hydrogels were synthesized through the radical polymerization of hardwood kraft lignin, N -isopropylacrylamide, and N , N ′-methylenebisacrylamide. Statistical analyses were employed to produce lignin-based hydrogels with the highest yield and swelling capacity. The success of the polymerization reactions was confirmed by NMR and Fourier infrared spectroscopy. The lignin-based hydrogel was more thermally and rheological stable, but exhibited less swelling affinity, than synthetic hydrogel. The rheological studies indicated that the swollen hydrogels were predominantly elastic and exhibited a critical solution temperature that was between 34 and 37 °C. Compared with the synthetic hydrogel, lignin-based hydrogel behaved less elastic as temperature increased. In addition to inducing a green hydrogel, the results confirmed that hardwood lignin-based hydrogel would have different properties than synthetic-based hydrogels, which could be beneficial for some applications.

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Section: Results and Discussionmentioning

confidence: 99%

Hardwood Kraft Lignin-Based Hydrogels: Production and Performance

2018

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“…The result of the Runkel lignin content in lemon peels and leaves should be taken with caution, because no protein was determined here and no adjustment was made, and it is known that the presence of protein has been detected in tree foliage (Fengel and Wegener 1983;Tzvetkova and Hadjiivanova 2006). The contribution of lignin improves the properties of biomass fuels; combustion calorimetry shows that the pyrolysis of lignin has a higher calorific value (Varfolomeev et al 2015;Herrera-Fernández et al 2017). Approximately 95% of the world's lignin production is used to produce energy through cogeneration systems, while the remaining 5% is marketed for the formulation of adhesives, dispersants, surfactants, and rubbers (Tribot et al 2019).…”

Section: Lignin Contentmentioning

confidence: 96%

On the basic chemical composition of selected biomass types from four regions of Mexico, for bioenergetic purposes

Gutiérrez-Acosta

Orihuela-Equihua

Pintor-Ibarra

et al. 2021

BioRes

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The chemical composition of hardwoods sawdust and citrus residues from four states of the Mexican Republic (Quintana Roo, Durango, Veracruz, and Sonora) were determined. The results ranged as follows: total extractives from 8.2% (Quercus spp.) to 35.0% (lime leaves), holocellulose from 45.4% (lime leaves) to 70.6% (Lysiloma latisiliquum), lignin from 3.9% (lemon peels) at 25.4% (Caesalpinia platyloba), ash from 0.4% (orange branches) to 6.3% (lemon peels), pH from 5.1 (Swartzia cubensis) to 7.3 (orange branches), and calorific value of 19.8 MJ/kg (Lysiloma latisiliquum and Quercus spp.) to 21.7 MJ/kg (Olneya tesota). With the exception of the oak samples, in all the biomass samples the extractives content is relatively high (10.1% for Lysiloma latisiliquum to 35% for Persian lime leaves), and could represent a potential for future study and applications in the field of antioxidants. Due to the chemical properties and calorific value, the biomass samples studied present potential for local use as densified biofuels (pellets or briquettes).

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“…The soluble lignin content of the materials was similar in all the eight clones, therefore, total lignin content followed the trend of insoluble lignin, with higher values for clone H and lower for A and B clones ( Table 1). The lignin is important because of its high carbon content (Fengel and Wegener, 1984) and resistance to high temperatures (Varfolomeev et al, 2015), what makes its presence desirable for energy production. The lignin quality also infl uences the energy use (Pereira et al, 2013), because wood with high S/G ratio, as that of clone C, have structure with fewer linkages between carbons, and therefore, lower resistance to thermal degradation (Prasad et al, 2015).…”

Section: Wood Chemical Characterizationmentioning

confidence: 99%

CHEMICAL AND ENERGETIC CHARACTERIZATION OF Eucalyptus grandis × Eucalyptus urophylla CLONES SUBJECT TO WIND DAMAGE

et al. 2019

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Wind damages are common in forest plantations and the use of this wood can minimize losses. The objective was to evaluate the chemical composition and the energetic potential of wood and charcoal from trees subject to wind damage. Eight (A to H) two-years-old Eucalyptus grandis × Eucalyptus urophylla clones were selected in a region where wind damage is frequent. The basic density, calorific value, chemical composition of wood and calorific value, immediate chemistry and gravimetric yield of charcoal were determined for all clones. Materials with high lignin content and low S/G ratio had higher gravimetric yield. The energy density of wood and charcoal showed high relationship with the basic and apparent relative density, respectively. All materials showed potential for bioenergy, but the clone E stood out with higher gravimetric yield and energy density.

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Thermal Analysis and Calorimetric Study of the Combustion of Hydrolytic Wood Lignin and Products of Its Pyrolysis

Cited by 18 publications

References 6 publications

Hardwood Kraft Lignin-Based Hydrogels: Production and Performance

Hardwood Kraft Lignin-Based Hydrogels: Production and Performance

On the basic chemical composition of selected biomass types from four regions of Mexico, for bioenergetic purposes

CHEMICAL AND ENERGETIC CHARACTERIZATION OF Eucalyptus grandis × Eucalyptus urophylla CLONES SUBJECT TO WIND DAMAGE

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