Thermal degradations of wood biofuels, coals and hydrolysis lignin from the Russian Federation: Experiments and modeling

Попова, Е. И.; Chernov, Aleksandr; Maryandyshev, Pavel; Brillard, Alain; Kehrli, Damaris; Trouvé, Gwenaëlle; Lyubov, V. K.; Brilhac, Jean-François

doi:10.1016/j.biortech.2016.07.033

Cited by 18 publications

(7 citation statements)

References 25 publications

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“…Biomass combustion includes four stages: drying, pyrolysis, homogeneous combustion of volatile products and heterogeneous combustion of char. Pyrolysis is the first step in any energy recovery processes such as combustion and gasification [6]. Modeling biomass pyrolysis is therefore essential for understanding combustion [7], which justifies the abundance of work in this field within the literature [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Development of a detailed kinetic model for the combustion of biomass

Dhahak

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Dreff-Lorimier

et al. 2019

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In the context of the growing utilization of biomass to produce energy and of the related need to decrease pollutant emissions from domestic wood combustion devices, this paper presents a new kinetic model of wood combustion considering especially in details the gas-phase reactions related to the combustion of the tars produced by the biomass devolatization. The tar production is predicted using a semi-detailed mechanism of the literature. The tar gas-phase combustion model has been built as a compilation of literature mechanisms already proposed for these species, except for hydroxyacetaldehyde for which a new oxidation mechanism has been written. Experiments on the thermochemical behavior of three types of wood (beech, fir and oak) were also performed in parallel of this work using Thermogravimetric Analysis (TGA). The new detailed kinetic model of wood combustion, BioPOx (Biomass Pyrolysis and Oxidation), has been tested against a wide range of experimental results published in literature. This model fairly reproduces experimental results for pyrolysis and combustion of biomass and its constituents, key produced tars from biomass pyrolysis, and key compounds for Polycyclic Aromatic Hydrocarbons (PAH) formation, for a wide range of experimental devices and operating conditions.

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Section: Introductionmentioning

confidence: 99%

Development of a detailed kinetic model for the combustion of biomass

Dhahak

Bounaceur

Dreff-Lorimier

et al. 2019

Fuel

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“…Table 4 shows the kinetic parameters for hydrolysis lignin in the inert and air atmosphere, determined by the EIPR model. This model is being mainly developed by the scientists of the Laboratory of Risk Analysis of the University of Haut Alsace [7].…”

Section: Resultsmentioning

confidence: 99%

Investigation of thermal degradation of hydrolysis lignin

2018

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Wood hydrolysis facilities were built in both northern and southern European regions of Russia, as well as in Siberia and the Russian Far East. Other hydrolysis plant in the former USSR were located in Ukraine, Belarus, Uzbekistan, Kazakhstan, Moldova and Lithuania. All or most of these facilities produced substantial amounts of excess lignin, so called “hydrolysis lignin” (HL). Technology of energy utilization of HL, having a great potential is a production of granulated fuel. Perspective way is pelletization of HL. In this paper complex kinetic analysis of hydrolysis lignin and its organic components under conditions of dynamic and isothermal heating was carried out. Kinetic parameters are determined using the extended independent parallel model.

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“…These decompositions result in the formation of char, which is subsequently burnt at higher temperatures (between 400 °C and 500 °C). The temperature ranges of these processes strongly depend on both the nature of the biomass and the experimental conditions of TGA [33,34].…”

Section: Calcium Oxalate Extraction Protocolsmentioning

confidence: 99%

The Multi-Analytical Characterization of Calcium Oxalate Phytolith Crystals from Grapevine after Treatment with Calcination

et al. 2023

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Calcium oxalate phytoliths are one of the most prominent types of Ca speciation in the plant kingdom, and they store extensive amounts of carbon in crystalline form. Ca phytoliths were investigated in the root, trunk, and bark of Vitis vinifera Chasselas from a vineyard in Alsace, France. A multi-analytical approach was used, which included SEM coupled with EDX spectroscopy, XRD, XRF, TGA, and 13C-NMR spectroscopy. These techniques revealed that phytoliths are composed of crystalline calcium oxalate monohydrate (whewellite). The whewellite crystals exhibited mostly equant or short-prismatic habits in all of the three studied grapevine parts, but bipyramidal crystals also occurred. Raphide crystals were only observed in the root, where they were abundant. Instead of using wet chemical procedures to extract the mineral components from the organic parts of the biomass, a thermal treatment via calcination was chosen. The suitable temperature of calcination was determined through TGA experiments. The calcination of the biomass samples at 250 °C enhanced the amounts of Ca phytoliths in the residual chars. The thermal treatment, however, affected the appearance of the Ca oxalate crystals by producing surfaces that displayed macroporosity and by creating fractures. For calcination at both 300 °C and 350 °C, Ca oxalate lost a molecule of carbon monoxide to form Ca carbonate, and the modifications of the original crystal surfaces were more pronounced than those observed after thermal treatment at 250 °C.

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Thermal degradations of wood biofuels, coals and hydrolysis lignin from the Russian Federation: Experiments and modeling

Cited by 18 publications

References 25 publications

Development of a detailed kinetic model for the combustion of biomass

Development of a detailed kinetic model for the combustion of biomass

Investigation of thermal degradation of hydrolysis lignin

The Multi-Analytical Characterization of Calcium Oxalate Phytolith Crystals from Grapevine after Treatment with Calcination

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