Co-Pyrolysis and Co-Gasification of Biomass and Oil Shale

Järvik, Oliver; Sulg, Mari; Cirici, Pau Cascante; Eldermann, Meelis; Konist, Alar; Gusca, Julija; Siirde, Andres

doi:10.2478/rtuect-2020-0038

Cited by 4 publications

(4 citation statements)

References 51 publications

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“…The obtained elemental analysis results are comparable to the values given in the literature. In the case of Scots Pine bark, similar results were obtained by Chen [107] (C = 51.20%, H = 5.66%), Tillman [108] (C = 52.3%, H = 5.8%), and Järvik et al [109] (C = 52.79%, H = 6.08%). The carbon and hydrogen content values in Norway Spruce bark obtained in [70] are also similar (C = 50.6%, H = 5.9%).…”

Section: Elementary Analysissupporting

confidence: 84%

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

Sobol,

Sabat,

Dyjakon

2023

Energies

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Wood bark is a by-product of the forestry industry with significant quantitative potential. Due to the higher heating value and hydrophobic character (dictated by the content of hydrophobic extracts in the chemical composition of the bark) facilitating long-term storage and transport, bark is considered a valuable material to be integrated into the energy industry as a substrate for combustion and co-combustion. However, the heterogeneous structure of the biomass causes significant differences in these parameters between different types of bark. For this reason, this study aimed to analyze the energy usefulness and hydrophobicity of 14 species of bark occurring in large amounts across Europe. Bark’s higher heating value has been shown to range from 17.239 MJ·kg−1 ± 0.318 MJ·kg−1 to 21.618 MJ·kg−1 ± 0.375 MJ·kg−1, and most species are extremely hydrophobic in the WDPT (water drop penetration time; 70–10,495 s) and MED (molarity ethanol droplet; 8.5–24%) tests. Nevertheless, the statistically significant differences between the species in the hydrophobicity tests indicate that the storage of individual types of bark should be adapted to the species and preceded by an analysis of its hydrophobicity. It was also shown that the WDPT test seems to be more suitable for the analysis of highly hydrophobic biomasses, due to the possibility of better differentiation of the level of hydrophobicity between species showing the same degree of hydrophobicity. In addition, the best type of bark that could be implemented in the power industry from the point of view of hydrophobicity and combustion characteristics was Silver Birch bark.

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Section: Elementary Analysissupporting

confidence: 84%

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

Sobol,

Sabat,

Dyjakon

2023

Energies

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“…It is the process of utilising more than one substrate to enhance the quality and yield of pyrolytic products while curtailing energy use. According to Jarvik, Sulg [52], co-pyrolysis is a viable intermittent stride to attaining a carbon-neutral economy. Factors such as substrate type, heat rate, temperature and the blending ratio of the substrates affect the quantity and quality of pyrolytic product yield during co-pyrolysis.…”

Section: Co-pyrolysismentioning

confidence: 99%

“…The volatile products are released from the reactor throughout the pyrolysis process; char residue is acquired afterwards. A fixed bed reactor is easy to build, with low cost of construction, operation and maintenance, and further interaction between reactant and catalyst [47], [52], [68]. Its disadvantages are the low yield of pyrolytic liquid fraction, difficulty in heat transfer and the possibility of side reactions [67].…”

Section: Fixed Bed Reactormentioning

confidence: 99%

The Contribution of Pyrolysis of Water Hyacinth to South Africa’s Low-carbon and Climate Resilient Economy Transition: A Mini Review

Ilo

Nkomo

Mkhize

et al. 2023

Environmental and Climate Technologies

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South Africa is a carbon-intensive country, with coal dominating the indigenous energy resource base; however, targets have been set to reduce the national carbon emissions. The transition from coal to cleaner sources of energy generation can be encouraged by the administration of new technologies. Hence, the study aims to review research progress on the pyrolysis of water hyacinth as a tool for the smooth transition to low carbon and climate-resilient economy. Water hyacinth is suitable for energy recovery due to its high carbon content and heating value. The outcome shows that pyrolytic products such as liquid, char and non-condensable gas fractions are beneficial. This paper contributes to policy and research deliberations on promoting and adopting pyrolysis technology in addressing South Africa’s energy crisis and water hyacinth invasion.

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“…Biomass energy systems have the potential to be a source of renewable energy [3], [4]. Biomass is converted to energy in different ways and processes [5], [6]. Biomass thermal conversion is a process in which the feedstock is heated to various high temperatures while being exposed to varying quantities of oxygen in each type of procedure.…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor

Inayat

Rocha‐Meneses

Said

et al. 2022

Environmental and Climate Technologies

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Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It is particularly attractive due to its cost-effectiveness and low environmental impact. Therefore, this study utilizes coffee waste to produce activated carbon in a slow pyrolysis reactor at different reaction temperatures and residence times. The results obtained in this study show that bio-oil yields tend to increase when moderate reaction temperatures and short residence times are used. In contrast, the bio-char yields are higher at low reaction temperatures and long residence times. The Scanning Electron Microscopic (SEM) images of the coffee waste, bio-char, and activated carbon indicate that the pore size of the bio-char tends to decrease due to heating and tends to increase in the area after using ZnCl2 as activating agent. Coffee waste is a suitable feedstock for activating carbon production.

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Co-Pyrolysis and Co-Gasification of Biomass and Oil Shale

Cited by 4 publications

References 51 publications

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

The Contribution of Pyrolysis of Water Hyacinth to South Africa’s Low-carbon and Climate Resilient Economy Transition: A Mini Review

Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor

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