Characteristics of hemicellulose, cellulose and lignin pyrolysis

Yang, Haiping; Yan, Rong; Chen, Hanping; Lee, Dong Hoon; Chen, Zheng

doi:10.1016/j.fuel.2006.12.013

Cited by 6,537 publications

(3,864 citation statements)

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“…It is likely that compost addition produced healthier trees with a higher content of lignin in the wood. Several works have shown that H 2 production in the gasification process is highly related to the lignin content of the material used (Yang et al, 2007;García-Barneto et al, 2009). …”

Section: Gasification and Combustionmentioning

confidence: 99%

Improving sustainability in the remediation of contaminated soils by the use of compost and energy valorization by Paulownia fortunei

Madejón

Domínguez

Díaz

et al. 2016

Science of The Total Environment

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The plantation of fast growing trees in contaminated sites, in combination with the use of organic wastes, could partially solve a dual environmental problem: the disposal of these wastes and the improvement of soil quality in these degraded soils. This study evaluated the effects of two composts amendments on the quantity and quality of Paulownia fortunei biomass and on syngas production by biomass gasification, produced by plants growing on trace elements contaminated soils. Compost increased biomass production to values similar to those produced in non-contaminated soils, due to the improvement in plant nutritional status. Moreover, biomass quality for gasification was increased by compost addition. Trace element accumulation in the biomass was relatively low and not related to biomass production or the gas quality obtained through gasification. Thus, P. fortunei plantations could pose an opportunity to Preprint submitted to Elsevier 2 improve the economic balance of the revegetation of contaminated soils, given that other commercial uses such as food or fodder crop production is not recommended in these soils.

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Section: Gasification and Combustionmentioning

confidence: 99%

Improving sustainability in the remediation of contaminated soils by the use of compost and energy valorization by Paulownia fortunei

Madejón

Domínguez

Díaz

et al. 2016

Science of The Total Environment

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“…[39,40] and for lignin [41], which in turn results in the advancement of the maximum rate of decomposition. At this stage, endothermal volatilization and exothermal charring processes are responsible of the resulting energy balance [42,43].…”

Section: Tg-dtg/dta Analysis Of the Biomass Componentsmentioning

confidence: 99%

“…6, which is assigned to hydroxyacetaldehyde, (OH)CH 2 C(O)H) [60]. It is known that the absorbance at a specific wavenumber is linearly dependent on the concentration of gas, so the changes in absorbance reflect the tendency of concentration variation of the different gas species, provided that the FTIR procedures are the same [35,42].…”

Section: Ftir Analysis Of Gases Evolvedmentioning

confidence: 99%

“…Among the three biomass components considered, xylan is the one which presents the highest absorbance of CO 2 and the highest CO/CO 2 ratio ( Table 4). CO 2 comes from the breakdown of C=O and COOH groups [42]. It would mainly come from decarboxylation reactions of O-acetyl units according to Shen et al [61].…”

Section: I) Xylanmentioning

confidence: 99%

“…In the present case that contribution must be less important, since the starting material is a hemicellulose mostly composed of xylose units. The CO formation is attributed to decarbonylation reactions, specifically to the breakdown of COC and C=O [42], due to the decomposition of the ringopened intermediate products [61]. The H 2 O emission during the pyrolysis stage is mainly derived from the hydroxyl groups of xylopyranose units.…”

Section: I) Xylanmentioning

confidence: 99%

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Comparison of thermal behavior of natural and hot-washed sisal fibers based on their main components: Cellulose, xylan and lignin. TG-FTIR analysis of volatile products

et al. 2014

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Abstract:This paper presents in a comprehensive way the thermal behavior of natural and hot-.washed sisal fibers, based on the fundamental components of lignocellulosic materials: cellulose, xylan and lignin. The research highlights the influence exerted on the thermal stability of sisal fibers by other constituents such as non-cellulosic polysaccharides (NCP) and mineral matter. Thermal changes were investigated by thermal X-ray diffraction (TXRD), analyzing the crystallinity index (%Ic) of cellulosic samples, and by simultaneous thermogravimetric and differential thermal analysis coupled with Fourier-transformed infrared spectrometry (TG/DTA-FTIR), which allowed to examine the evolution of the main volatile compounds evolved during the degradation under inert and oxidizing atmospheres. The work demonstrates the potential of this technique to elucidate different steps during the thermal decomposition of sisal, providing extensible results to other lignocellulosic fibers, through the analysis of the evolution of CO 2 , CO, H 2 O, CH 4 , acetic acid, formic acid, methanol, formaldehyde and 2-butanone, and comparing it with the volatile products from pyrolysis of the biomass components. The hydroxyacetaldehyde detected during pyrolysis of sisal is indicative of an alternative route to that of levoglucosan, generated during cellulose pyrolysis.Hot-washing at 75 ºC mostly extracts non-cellulosic components of low decomposition temperature, and reduces the range of temperature in which sisal decomposition occurs, causing a retard in the pyrolysis stage and increasing Tb NCP and Tb CEL , temperatures at the maximum mass loss rate of non-cellulosic polysaccharides and cellulose decompositions, respectively. However, enriching sisal fibers in cellulose produces a decrease of Tb CEL under an oxidizing atmosphere, and furthermore, a delay of the combustion process, displacing Tb COM to higher temperatures.The results and findings of the paper would help further understanding of thermal processes where agave fibers are involved, as the decomposition of their composites.

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Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From ¹⁴C Ramped Pyrolysis and Lignin Biomarkers

Zhang

Bianchi

Cui

et al. 2017

Geophysical Research Letters

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The deposition of terrestrial‐derived permafrost particulate organic carbon (POC) has been recorded in major Arctic river deltas. However, associated transport pathways of permafrost POC from the watershed to the coast have not been well constrained. Here we utilized a combination of ramped pyrolysis‐oxidation radiocarbon analysis (RPO 14C) along with lignin biomarkers, to track the linkages between soils and river and delta sediments. Surface and deep soils showed distinct RPO thermographs which may be related to degradation and organo‐mineral interaction. Soil material in the bed load of the river channel was mostly derived from deep old permafrost. Both surface and deep soils were transported and deposited to the coast. Hydrodynamic sorting and barrier island protection played important roles in terrestrial‐derived permafrost POC deposition near the coast. On a large scale, ice processes (e.g., ice gauging and strudel scour) and ocean currents controlled the transport and distribution of permafrost POC on the Beaufort Shelf.

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Characteristics of hemicellulose, cellulose and lignin pyrolysis

Cited by 6,537 publications

References 22 publications

Improving sustainability in the remediation of contaminated soils by the use of compost and energy valorization by Paulownia fortunei

Improving sustainability in the remediation of contaminated soils by the use of compost and energy valorization by Paulownia fortunei

Comparison of thermal behavior of natural and hot-washed sisal fibers based on their main components: Cellulose, xylan and lignin. TG-FTIR analysis of volatile products

Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From ¹⁴C Ramped Pyrolysis and Lignin Biomarkers

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Characteristics of hemicellulose, cellulose and lignin pyrolysis

Cited by 6,537 publications

References 22 publications

Improving sustainability in the remediation of contaminated soils by the use of compost and energy valorization by Paulownia fortunei

Improving sustainability in the remediation of contaminated soils by the use of compost and energy valorization by Paulownia fortunei

Comparison of thermal behavior of natural and hot-washed sisal fibers based on their main components: Cellulose, xylan and lignin. TG-FTIR analysis of volatile products

Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From 14C Ramped Pyrolysis and Lignin Biomarkers

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Permafrost Organic Carbon Mobilization From the Watershed to the Colville River Delta: Evidence From ¹⁴C Ramped Pyrolysis and Lignin Biomarkers