Impact of high-temperature biomass pyrolysis on biochar formation and composition

Zou, Xun; Debiagi, Paulo; Amjed, Muhammad Ahsan; Zhai, Ming; Faravelli, Tiziano

doi:10.1016/j.jaap.2024.106463

Cited by 8 publications

(6 citation statements)

References 48 publications

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“…As seen in Figure 4, the m/z signal 2 was identified as a hydrogen (H2) and its signal reaches its peak at around 360 °C. This peak is related to decomposition of cellulose into C-H groups [36]. The m/z = 16 was identified as methane (CH4).…”

Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

“…These peaks occur at temperatures around 360 °C and 430 °C. The peak at 360 °C most likely originates from decomposition of cellulose, and the peak at 430 °C from decomposition of lignin [36,37]. The signal m/z = 18 was identified as water (H2O).…”

Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

“…The first one occurs at temperature around 105 °C and is related to release of the moisture from the feedstock. The second peak around 360 °C is caused by the decomposition of oxygen-based functional groups [36]. The signal m/z = 30 was identified as an ethane (C2H6).…”

Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

“…The first one most likely originates from the decomposition of cellulose and the la er from the decomposition of lignin. The m/z = 44 was identified as carbon dioxide (CO2) and has two main peaks: the first peak occurs at 360 °C, suggesting that it originates from the decomposition of cellulose, and the second peak occurs around 600 °C, which could be a ributed to macromolecular cracking [36]. At 800 °C, the peak intensity growth is suggested to originate from the decomposition of carbonyl and carboxyl groups which occur around this temperature [36].…”

Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

“…In general, O and H content decreases when pyrolysis temperature is increased, and C content increases when pyrolysis temperature rises. According to Zou et al [36], the decrease in hydrogen and oxygen content is caused by removing the hydrogen (CH4 and CH2O) and oxygen-containing groups (CO and CO2) of the biomass. Similarly, increased carbon content is caused by the formation of polycyclic aromatic hydrocarbon structures in the produced biocarbon [36].…”

Section: Ultimate Analysismentioning

confidence: 99%

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Biocarbon Production Using Three-Stage Pyrolysis and Its Preliminary Suitability to the Iron and Steel Industry

Pahnila,

Koskela,

Sulasalmi

et al. 2024

Energies

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There has been a rising interest in the iron and steel industry in replacing fossil-based carbon carriers in their processes because they are the main origin of the anthropogenic carbon emissions within the industry. The use of bio-based carbon carriers could be one solution to partly tackle this challenge. Conventionally, biocarbon is produced by pyrolysis with fixed heating rate, pyrolysis temperature, and retention time. Although the mechanisms behind the formation of biocarbon and the decomposition temperatures of the main compounds of biomass-based materials are known, this knowledge is rarely being utilized in the design of commercial pyrolysis reactors, even though the pyrolysis mechanism-based approach increases the biocarbon yield. In this study, the mechanistic pathway of carbonization of lignocellulosic biomass is taken into account to produce biocarbon with higher yield and quality than conventional pyrolysis with the same process time. Results show that when the process time is the same in both methods, segmented pyrolysis increases biocarbon yield up to 5.4% within a pyrolysis temperature range from 300 °C to 900 °C. Also, fixed carbon yield increased 1.5% in this temperature area. When using segmented pyrolysis, the most suitable pyrolysis temperature is 700 °C based on the characteristics of the produced biocarbon.

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Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

Section: Proximate Analysis Of Feedstockmentioning

confidence: 99%

Section: Ultimate Analysismentioning

confidence: 99%

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