A comparative kinetic study on the pyrolysis of three different wood species

Müller-Hagedorn, Matthias; Bockhorn, Henning; Krebs, L.; Müller, Uwe

doi:10.1016/s0165-2370(03)00065-2

Cited by 295 publications

(199 citation statements)

References 24 publications

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“…However, secondary reactions occur during the pyrolysis process involving other components present within the biomass (Ponder and Richards, 1991;Kleen and Gellerstedt, 1995;Muller-Hagedorn et al, 2003;Fahmi et al, 2007;Patwardhan et al, 2010;Ronsse et al, 2012;Lou et al, 2013;Mante et al, 2014). As products form, they can interact with catalytic minerals in the residual solid.…”

Section: Model 2: Secondary Reactions Catalyzed By Inorganic Componentsmentioning

confidence: 99%

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Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

et al. 2015

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Thermal conversion of biomass is a rapid, low-cost way to produce a dense liquid product, known as bio-oil, that can be refined to transportation fuels. However, utilization of bio-oil is challenging due to its chemical complexity, acidity, and instability -all results of the intricate nature of biomass. A clear understanding of how biomass properties impact yield and composition of thermal products will provide guidance to optimize both biomass and conditions for thermal conversion. To aid elucidation of these associations, we first describe biomass polymers, including phenolics, polysaccharides, acetyl groups, and inorganic ions, and the chemical interactions among them. We then discuss evidence for three roles (i.e., models) for biomass components in the formation of liquid pyrolysis products: (1) as direct sources, (2) as catalysts, and (3) as indirect factors whereby chemical interactions among components and/or cell wall structural features impact thermal conversion products. We highlight associations that might be utilized to optimize biomass content prior to pyrolysis, though a more detailed characterization is required to understand indirect effects. In combination with high-throughput biomass characterization techniques, this knowledge will enable identification of biomass particularly suited for biofuel production and can also guide genetic engineering of bioenergy crops to improve biomass features.

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Section: Model 2: Secondary Reactions Catalyzed By Inorganic Componentsmentioning

confidence: 99%

“…Additionally, the alkali metals reduce levoglucosan production at very low thresholds. This suggests that Na + and K + ultimately promote cracking reactions while Mg 2+ and Ca 2+ promote dehydration reactions (Muller-Hagedorn et al, 2003;Patwardhan et al, 2010;Eom et al, 2012).…”

Section: Model 2: Secondary Reactions Catalyzed By Inorganic Componentsmentioning

confidence: 99%

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

et al. 2015

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] The biomass fuels and raw materials contain a wide variety of pyrolyzing species. Even the same chemical species may have different reactivity if their pyrolysis is influenced by other species in their vicinity.…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetric Study of Biomass Pyrolysis Kinetics. A Distributed Activation Energy Model with Prediction Tests

et al. 2010

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ABSTRACT. The pyrolysis of four biomasses (corn stalk, rice husk, sorghum straw and wheat straw) was studied at different temperature -time functions in inert gas flow by thermogravimetric analysis (TGA). Linear and stepwise heating programs were employed. A distributed activation energy model (DAEM) with three pools of reactant (three pseudocomponents) was used due to the complexity of the biomass samples of agricultural origin. Compensation effects were observed between the kinetic parameters similarly to the works of other investigators. The compensation effects result in ambiguous parameter values hence they were eliminated by decreasing the number of the unknown parameters. For this purpose part of the kinetic parameters was assumed to be the same for the four biomasses. This approach also helps to express the similarities of the samples in the model. The sixteen experiments were evaluated simultaneously by the method of least squares to obtain dependable kinetic parameters. 2The resulting models described well the experimental data and were suitable for predicting experiments at higher heating rates. The checks on the prediction capabilities were considered to be an essential part of the model verification.

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“…Further mass loss is related to hemicellulose, cellulose and lignin decomposition. At the last stage, the thermal destruction of lignin is completed and the combustion of coal formed during the thermal decomposition takes place (Loskutov et al, 2015;Muller-Hagedorn et al, 2003). In this study, it is distinguished three temperature ranges for the combustion of woody biomass of the poplar clones Ijzer-5 as well .…”

Section: Resultsmentioning

confidence: 81%

The Poplar Saplings Survival in Reclaimed Mineland Depending on Clone and Root Treatment

Kharytonov¹,

Babenko²,

Мартынова³

et al. 2017

AgricultForest

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SUMMARYThe genus Populus L. is one of the promising energy plants for growing on marginal lands. To assess its potential under steppe conditions, growth morphological parameters of 9 hybrid poplar clones grown over two years on a mix of loess-like loam and red-brown clay have been studied. In the first year, the degree of the sapling survival and the intensity of development were explored. At the end of the year, two clones which showed the best results (Ijzer-5 and Robusta), were selected for further breeding and rearing. Researches of the second year were devoted to the effect of biological agents on the survival and growth of these two clones. The treatments with vermicomposting extract (VCE), trichodermin, mycorrhiza and mixture of these agents were applied. The experiment with poplar clones Ijzer-5 showed a positive effect of all bioagents on the growth morphological parameters. The increase of the length and diameter of an annual shoots, leaf area and total assimilation surface from 10 to 38% was revealed. The treatment with vermicomposting extract gave the best result. For clones Robusta, only three agents out of four had a positive effect. The rise in morphological parameters was at the level of 9-55%. The best results were noted in the experiment with a mixture of agents. Treatment with trichodermin caused an inhibitory action on most of the growth characteristics of the clone Robusta.To obtain the wood thermal stability information a comparative thermogravimetric analysis of poplar wood samples grown on different soil types was carried out. A larger value of DTG at all stages was observed in a sample of poplar grown on sod podzolic soil. The difference in the value of the rate of mass loss is explained by the larger content of humus in sod podzolic soils, than in the phytomeliorated mix of rocks.

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A comparative kinetic study on the pyrolysis of three different wood species

Cited by 295 publications

References 24 publications

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

Thermogravimetric Study of Biomass Pyrolysis Kinetics. A Distributed Activation Energy Model with Prediction Tests

The Poplar Saplings Survival in Reclaimed Mineland Depending on Clone and Root Treatment

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