Cell wall components in torrefied softwood and hardwood samples

Пушкин, С А; Kozlova, Liudmila; Макаров, А. А.; Грачев, А Н; Горшкова, Т. А.

doi:10.1016/j.jaap.2015.09.020

Cited by 15 publications

(4 citation statements)

References 37 publications

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“…Torrefied wood and straw in the form of pellets can be directly co-fired with coal in a relatively high ratio, hereby using the processing infrastructures at existing coal power plants. As a consequence of the difference in the relative amount of cellulose, hemicellulose, lignin, and extractives, the woody and herbaceous materials behave differently during thermal decomposition. , Several factors may affect the thermal decomposition of lignocellulosic materials. The alkali ions have a significant impact on the thermal degradation mechanisms of cellulose; ,− the depolymerization reaction is hindered; and the fragmentation reactions are promoted, leading to the decreased decomposition temperature and the increased char yield.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Compositional Study of Torrefied Wood and Herbaceous Materials by Chemical Analysis and Thermoanalytical Methods

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Comprehensive Compositional Study of Torrefied Wood and Herbaceous Materials by Chemical Analysis and Thermoanalytical Methods

et al. 2016

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“…The broad peak in the absorption range of 3339 cm −1 indicated the stretching vibration of O-H through intra- and intermolecular hydrogen bonds [ 53 ], mainly in phenolic and aliphatic structures, where O-H stretches to the hydroxyl group and dehydroxylation and condensation decrease the corresponding peak [ 54 ]. As PP was dried and dehydrated before experimentation, the PP water molecular vibration had no effect, which was confirmed by comparing the FTIR spectra of pure PP and the experimental PP.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Briquette Fuels by Co-Torrefaction of Residual Biomass and Plastic Waste Using Response Surface Methodology

et al. 2023

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Combining biomass, a clean and renewable energy source, with waste plastic, which serves as a good auxiliary fuel, can produce high-quality clean fuel. The performance of biomass-derived fuel can be improved by torrefaction. This study optimized the co-torrefaction of fungus bran and polypropylene (PP) waste plastic to obtain clean solid biofuel with high calorific value and low ash content (AC) using response surface methodology. Two sets of mixed biochars were investigated using a multiobjective optimization method: mass yield–higher heating value–ash content (MY-HHV-AC) and energy yield–ash content (EY-AC). PP increased the heat value, decreased AC, and acted as a binder. The optimal operating conditions regarding reaction temperature, reaction time, and PP blending ratio were 230.68 °C, 30 min, and 20%, respectively, for the MY-HHV-AC set and 220 °C, 30 min, 20%, respectively, for the EY-AC set. The MY-HHV-AC set had properties close to those of peat and lignite. Furthermore, compared with that of the pure biochar, the AC of the two sets decreased by 15.71% and 14.88%, respectively, indicating that the prepared mixed biochars served as ideal biofuels. Finally, a circular economy framework for biobriquette fuel was proposed and prospects for preparing pellets provided.

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“…Woody plants consist of softwoods (gymnosperms) and hardwoods (angiosperms), while non-woody plants (herbaceous crops) such as grasses are angiosperms. In general, cellulose consists of 40-50% of the dry weight, hemicellulose consists around 25-35%, lignin consists 15-30% and extractives 1-5% [8,22,23] (Table 1). The major component of lignocellulosic biomass is cellulose, which consist of β-1,4-linked glucose molecules in a straight chain.…”

Section: Lignocellulosic Biomass: Types and Compositionmentioning

confidence: 99%

Potential Applications of Lignin and Its Derivatives From Lignocellulosic Biomass – A Review

et al. 2023

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Lignin is the second most abundant component of lignocellulose biomass after cellulose with annual production of 70 million tons. Lignin constitutes between 15 to 40 percent of its dry weight, with varying composition in woody plants such as softwood (18-25%) and hardwood (27-33%), and non-woody plant such as grass (17-24%). The polyphenolic polymer is made up of three monolignols such as coniferyl alcohol, sinapyl alcohol, and p-coumaryl alcohol that later forms an aromatic structure consisting of guaiacyl, syringyl, and p-hydroxyphenyl. The highly branched three-dimensional structure is both complex and recalcitrant, hence making its utilization difficult. However, the polymeric lignin can be extracted by various methods such as physical, chemical and biological. The extracted lignin has high potential to be converted into monomeric aromatic derivatives that could serve as a building block for chemical synthesis, biomaterials, bio-oils, wastewater treatment and food industry. The conversion involves several methods such as alkaline nitrobenzene, pyrolysis, catalytic technology, combustion, gasification, hydrocracking and oxidation.

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Cell wall components in torrefied softwood and hardwood samples

Cited by 15 publications

References 37 publications

Comprehensive Compositional Study of Torrefied Wood and Herbaceous Materials by Chemical Analysis and Thermoanalytical Methods

Comprehensive Compositional Study of Torrefied Wood and Herbaceous Materials by Chemical Analysis and Thermoanalytical Methods

Optimization of Briquette Fuels by Co-Torrefaction of Residual Biomass and Plastic Waste Using Response Surface Methodology

Potential Applications of Lignin and Its Derivatives From Lignocellulosic Biomass – A Review

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