Obtaining of biomorphic composites based on carbon materials

Lisiecka, Barbara; Bokůvka, Otakar; Tański, Tomasz; Krzemiński, Łukasz; Jambor, Michal

doi:10.30657/pea.2018.19.05

Cited by 3 publications

(4 citation statements)

References 9 publications

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“…The modulus of rupture and modulus of elasticity are 29 MPa and 3970 MPa, respectively [10]. However, Paulownia species have a very soft wood (10-25 MPa on Janka's scale) [11].…”

Section: Discussionmentioning

confidence: 99%

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

Świechowski

Liszewski²,

Bąbelewski³

et al. 2019

Data

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The very fast growing Oxytree (Paulownia Clon in Vitro 112) is marketed as a promising new energy crop. The tree has characteristically large leaves, thrives in warmer climates, and requires initial pruning for enhanced biomass production in later years. We explored valorizing the waste biomass of initial (first year) pruning via thermal treatment. Specifically, we used torrefaction (‘roasting’) to produce biochar with improved fuel properties. Here for the first time, we examined and summarized the fuel properties data of raw biomass of Oxytree pruning and biochars generated via torrefaction. The effects of torrefaction temperature (200~300 °C), process time (20~60 min), soil type, and agro-technical cultivation practices (geotextile and drip irrigation) on fuel properties of the resulting biochars were summarized. The dataset contains results of thermogravimetric analysis (TGA) as well as proximate and ultimate analyses of Oxytree biomass and generated biochars. The presented data are useful in determining Oxytree torrefaction reaction kinetics and further techno-economical modeling of the feasibility of Oxytree valorization via torrefaction. Oxytree torrefaction could be exploited as part of valorization resulting from a synergy between a high yield crop with the efficient production of high-quality renewable fuel.

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“…The modulus of rupture and modulus of elasticity are 29 MPa and 3970 MPa, respectively [10]. However, Paulownia species have a very soft wood (10-25 MPa on Janka's scale) [11].…”

Section: Discussionmentioning

confidence: 99%

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

Świechowski

Liszewski²,

Bąbelewski³

et al. 2019

Data

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“…Type of carbon precursor is one of important process parameter in graphite production. Generally, carbon rich material such as coke and coal tar pitch are utilized (Lisiecka et al, 2018). However, contemporary research has been shifted toward greener and sustainable option, such as biomass waste (Paun et al, 2016;Slovaca and Cehl, 2016).…”

Section: Introductionmentioning

confidence: 99%

The effect of changing graphitization temperature toward bio-graphite from Palm Kernel Shell

Othman

Kamal

Jabarullah

2021

Production Engineering Archives

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This paper focuses on the relationship between heat treatment temperature toward structural transformation from amorphous carbon to highly graphitic carbon material during a production stage.The following report discusses a simple strategy to convert the palm kernel shell (PKS) into highly crystalline, high quality graphite via simple two-step process. The production involves impregnation of catalyst followed by thermal treatment. Both XRD and Raman spectroscopy allowed the observation of microstructural change of the prepared sample at temperature ranging from 1000°C to 1400°C using Ferum catalyst. From XRD pattern it can be observed that as graphitization temperature increased, the degree of graphitization also increased. Overall sample prepared at higher temperature 1400°C shows a higher degree of graphitization. PKS sample graphitized at 1400°C with the aid of Ferum catalyst shows a sharp intensified peak at 2θ = 26.5° reflecting formation of highly crystalline graphite structure. Raman spectrum also suggests similar results to XRD in which PKS-1400 shows the presence of large amount of graphitic structure as the value of (Id/Ig) ratio is lower than in other samples. HRTEM analysis visibly shows define lattice fringe, which further confirms the structural transformation from amorphous to highly ordered graphitic carbon structure. Overall, good quality graphitic carbon structure from Palm Kernel shell was succesfully synthesised via utilization of PKS, Ferum catalsyt and heat treatment method.

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“…The Oxytree wood is utilized in construction or furniture-making [14]. Paulownia clon in Vitro 112 ranks as class I on Janka’s hardness scale—very soft wood [15]. It has been shown that the biochar from Paulownia produced at 600 °C is a pure carbon without organic composition, characterized by a pore size from 35.8 to 290.5 μm.…”

Section: Introductionmentioning

confidence: 99%

“…It has been shown that the biochar from Paulownia produced at 600 °C is a pure carbon without organic composition, characterized by a pore size from 35.8 to 290.5 μm. Such material, after proper treatment, can be applied as a filtration agent or catalyst [15]. Oxytree can also be utilized for energy purposes.…”

Section: Introductionmentioning

confidence: 99%

Oxytree Pruned Biomass Torrefaction: Process Kinetics

et al. 2019

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Oxytree is a fast-growing energy crop with C4 photosynthesis. In this research, for the first time, the torrefaction kinetic parameters of pruned Oxytree biomass (Paulownia clon in Vitro 112) were determined. The influence of the Oxytree cultivation method and soil class on the kinetic parameters of the torrefaction was also investigated. Oxytree pruned biomass from a first-year plantation was subjected to torrefaction within temperature range from 200 to 300 °C and under anaerobic conditions in the laboratory-scale batch reactor. The mass loss was measured continuously during the process. The relative mass loss increased from 1.22% to 19.56% with the increase of the process temperature. The first-order constant rate reaction (k) values increased from 1.26 × 10−5 s−1 to 7.69 × 10−5 s−1 with the increase in temperature. The average activation energy for the pruned biomass of Oxytree torrefaction was 36.5 kJ∙mol−1. Statistical analysis showed no significant (p < 0.05) effect of the Oxytree cultivation method and soil class on the k value. The results of this research could be useful for the valorization of energy crops such as Oxytree and optimization of waste-to-carbon and waste-to-energy processes.

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Obtaining of biomorphic composites based on carbon materials

Cited by 3 publications

References 9 publications

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

The effect of changing graphitization temperature toward bio-graphite from Palm Kernel Shell

Oxytree Pruned Biomass Torrefaction: Process Kinetics

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