Effect of hydrothermal carbonisation temperature on the ignition properties of grape marc hydrochar fuels

Nguyen, Duong; Zhao, Wanxia; Mäkelä, Mikko; Alwahabi, Zeyad T.; Kwong, Chi Wai

doi:10.1016/j.fuel.2021.122668

Cited by 17 publications

(6 citation statements)

References 42 publications

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“…They measured the ignition times and temperatures for solid fuels and slurries on their basis by using radiative heating. The research findings demonstrated that hydrochar slurry derived from biomass are easy to ignite (ignition delay times varied from 0.2 to 2.38 s) at relatively low temperatures (89 to 103 • C) [77]. Zhu et al [78] recorded the ignition delay times and burnout rate of single droplets of biochar water slurry produced by biomass pyrolysis.…”

Section: Combustion Of Slurry Fuelsmentioning

confidence: 99%

“…The measurement of these parameters will make it possible to fully evaluate the efficiency of combustion, compare different fuel types, and identify the key strengths and weaknesses of the combustion scheme of choice, etc. In addition, these parameters are especially typical of research into ignition and combustion mechanisms of conventional and composite fuels [76][77][78][79]. For instance, Nguyen et al [77] studied the ignition behavior of hydrocarbon fuels produced from carbonized biomass.…”

Section: Combustion Of Slurry Fuelsmentioning

confidence: 99%

“…In addition, these parameters are especially typical of research into ignition and combustion mechanisms of conventional and composite fuels [76][77][78][79]. For instance, Nguyen et al [77] studied the ignition behavior of hydrocarbon fuels produced from carbonized biomass. They measured the ignition times and temperatures for solid fuels and slurries on their basis by using radiative heating.…”

Section: Combustion Of Slurry Fuelsmentioning

confidence: 99%

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Prospects of Using Gas Hydrates in Power Plants

et al. 2022

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By adding water to fuels, several objectives are pursued, with the main ones being to stabilize combustion, minimize the anthropogenic gaseous emissions, homogenize and stabilize the fuel, as well as improve its fire and explosion safety. Water can be injected into the furnace as droplets or vapor and introduced as part of fuel samples. Water often serves as a coupling or carrier medium for the delivery of the main fuel components. In this paper, we compare the combustion behaviors of high-potential slurry fuels and gas hydrates. We also analyze the contribution of in slurries and gas hydrates to the combustion process. The values of relative combustion efficiency indicators are determined for gas hydrates and slurry fuels. The conditions are identified in which these fuels can be burned effectively in power plants. The research findings can be used to rationalize the alternative ways of using water resources, i.e., gas hydrate powder and promising composite fuel droplets. The results can also help predict the conditions for the shortest possible ignition delay, as well as effective combustion of gas hydrates as the most environmentally friendly new-generation alternative fuel.

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Section: Combustion Of Slurry Fuelsmentioning

confidence: 99%

Section: Combustion Of Slurry Fuelsmentioning

confidence: 99%

Section: Combustion Of Slurry Fuelsmentioning

confidence: 99%

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Prospects of Using Gas Hydrates in Power Plants

et al. 2022

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“…Hydrochar is a type of carbon material that could be produced from wet material, like fruit pomace [200], kitchen waste [201], or sewage sediment [202], with the use of a hydrothermal carbonization process. Needless to say, that kind of process could help to utilize high-moisture waste and transform it into useful fuel.…”

Section: Hydrochar Influence Of Microbiocenosis During Methane Produc...mentioning

confidence: 99%

Revealing the Adverse Impact of Additive Carbon Material on Microorganisms and Its Implications for Biogas Yields: A Critical Review

Kozłowski,

Igwegbe,

Tarczyńska

et al. 2023

Materials

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Biochar could be a brilliant additive supporting the anaerobic fermentation process. However, it should be taken into account that in some cases it could also be harmful to microorganisms responsible for biogas production. The negative impact of carbon materials could be a result of an overdose of biochar, high biochar pH, increased arsenic mobility in the methane fermentation solution caused by the carbon material, and low porosity of some carbon materials for microorganisms. Moreover, when biochar is affected by an anaerobic digest solution, it could reduce the biodiversity of microorganisms. The purpose of the article is not to reject the idea of biochar additives to increase the efficiency of biogas production, but to draw attention to the properties and ways of adding these materials that could reduce biogas production. These findings have practical relevance for organizations seeking to implement such systems in industrial or local-scale biogas plants and provide valuable insights for future research. Needless to say, this study will also support the implementation of biogas technologies and waste management in implementing the idea of a circular economy, further emphasizing the significance of the research.

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“…These techniques were also used by Wang et al [22] to study food waste and their hydrochars produced within a temperature range of 180-260 and 60 min of residence time in terms of solid biofuels characteristics. Akarsu et al [23], Saqib et al [24], and Nguyen et al [25] also studied food waste and their hydrochars to confirm their ability in energy production by emphasizing their physicochemical, structural, and combustion performance. Sharma et al [26] studied in detail the mechanism and process parameters of the hydrothermal carbonization of municipal solid waste as a potential biofuel taking into account the environmental impact.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Carbonization of the Wet Fraction from Mixed Municipal Solid Waste: A Fuel and Structural Analysis of Hydrochars

et al. 2022

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One of the by-products of a mechanical-biological waste treatment plant is the under-sieve fraction, which requires separation prior to further processing of municipal mixed waste. This stream usually follows the fate of landfilling. Instead, it could be introduced to the hydrothermal carbonization (HTC) process to improve its fuel properties and become solid recovered fuel. The organic fraction and high moisture content (approximately 26%) of under-sieve fraction are favorable properties for the HTC process. In this study, hydrochars, the solid product of HTC, were produced at 200 and 220 °C with residence times of 1, 4, and 8 h. The main aim of this investigation was to establish the influence of different process parameters on hydrochars’ fuel properties. Thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) were employed in the analyses. The results confirmed the positive effects of hydrothermal carbonization on the under-sieve fraction of municipal mixed waste properties. The ignition temperature increased from 247 °C to 288 °C and burnout temperature decreased to 443 °C from 489 °C after hydrothermal carbonization, causing a shorter combustion process. The determined key combustion parameters were: S = 12.4 × 10−8%·min−2·°C−3, Hf = 1174.9 °C and Di = 0.0075%·min−3, which in comparison to USF decreased by 44%, increased by 33%, and decreased by 29%, respectively, and became closer to those of coal. Furthermore, the identified structural changes indicate that hydrochars could be successfully used in energy production. The most promising results were found for hydrochar produced at 220 °C for 1 h, leading to a better combustion performance and providing a more stable and a less violent flame.

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Effect of hydrothermal carbonisation temperature on the ignition properties of grape marc hydrochar fuels

Cited by 17 publications

References 42 publications

Prospects of Using Gas Hydrates in Power Plants

Prospects of Using Gas Hydrates in Power Plants

Revealing the Adverse Impact of Additive Carbon Material on Microorganisms and Its Implications for Biogas Yields: A Critical Review

Hydrothermal Carbonization of the Wet Fraction from Mixed Municipal Solid Waste: A Fuel and Structural Analysis of Hydrochars

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