Insights into pyrolysis of pearl millet (Pennisetum glaucum) straw through thermogravimetric analysis: Physico-chemical characterization, kinetics, and reaction mechanism

Tagade, Ankita; Kandpal, Saurav; Sawarkar, Ashish N.

doi:10.1016/j.biortech.2023.129930

Cited by 16 publications

(1 citation statement)

References 39 publications

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“…Several studies were conducted to estimate the pyrolysis kinetics of agricultural wastes such as Palm oil waste [22], bagasse [23] rice straw [24], pecan shell [25], rice husk [26], pearl millet [27], aloe vera [28], Bengalese [29], pigeon pea [30], hazelnut husk [31], coconut shell [32], and garlic stalks [33]. Li et al (2021) studied pyrolysis of sesame residue at different temperatures (350 °C-650 °C) [34].…”

Section: Introductionmentioning

confidence: 99%

Understanding the pyrolysis kinetics, thermodynamic, and environmental sustainability parameters of Sesamum indicum crop residue

Sivaraman,

Shanmugam,

Veerapandian

et al. 2023

Environ. Res. Commun.

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In this work, the physiochemical characteristics, thermodynamics, and sustainability of the pyrolysis of Sesamum indicum biomass were assessed. The pyrolysis kinetics of sesame agro-residues performed using isoconversional techniques such as Kissinger, KAS, and OFW methods showed activation energies of 192, 120, and 123 kJ mol−1, respectively. The impact of the pyrolysis temperature (550, 650, 750 °C) on the generation of biochar, bio-oil, and gas is also studied; the exergy efficiency increased from 82.7 at 550 °C to 87.3% at 750 °C with an increase in the temperature. Sesame biochar’s Van Krevalan diagram showed how its fuel-like characteristics also grew with rising temperatures. The input and output parameters showed a high agreement in the mass, energy, and exergy balance closures. However, it was shown that the overall energy efficiency was greater at 750 °C (71.2%) compared to 55.5% and 69.8% at 550 °C and 650 °C, respectively. Sustainability analysis showed that lower temperatures had a smaller impact on the environment.

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Section: Introductionmentioning

confidence: 99%

Understanding the pyrolysis kinetics, thermodynamic, and environmental sustainability parameters of Sesamum indicum crop residue

Sivaraman,

Shanmugam,

Veerapandian

et al. 2023

Environ. Res. Commun.

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Evaluation on thermal pyrolysis of biomass straw waste: Focusing aspects of products yields, syngas emissions and solid products characterization

Yao,

Zhou,

et al. 2024

Asia-Pacific J Chem Eng

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In this study, a systematic and quantitative investigation of the pyrolysis characteristics of biomass was conducted in a fixed‐bed tubular reactor, and the influence of pyrolysis temperature on product yields, gas emission characteristics, and syngas compositions as well as physicochemical characterization of resulting solids (i.e., char/ash morphologies, mineral transformations, and elemental compositions) was explored in detail. The pyrolysis experiments were performed under N2, and the resulting solid characterization was detected by XRD, SEM, and EDX. The results indicated that with increasing the pyrolysis temperature from 400 to 800°C, the gaseous product yields increased from 54.9% to 66.7%, while the solid product yield showed a reverse trend, varying within 27.7%–40.5%. Meanwhile, the volume fraction of H2 in syngas increased from 7% to 33%, while the CO2 presented an opposite trend, suggesting that high temperature favored H2 formation and inhibited CO2 formation. On the whole, the CO and CO2 emissions were prior to CH4, H2, and CnHm in sequence. A large amount of sylvite (KCl), quartz (SiO2), dolomite (CaMg(CO3)2), and pyroxene (CaMgSi2O6) in the resulting solids were identified in crystal phases. Higher pyrolysis temperature had a significant influence on solid microstructures, resulting in a relatively higher slagging tendency due to low melting eutectics containing K‐rich and Ca‐rich minerals.

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Kinetics and thermodynamic analysis of pyrolysis of paper waste

Rohit,

Chandel

2024

Biomass Conv. Bioref.

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Insights into pyrolysis of pearl millet (Pennisetum glaucum) straw through thermogravimetric analysis: Physico-chemical characterization, kinetics, and reaction mechanism

Cited by 16 publications

References 39 publications

Understanding the pyrolysis kinetics, thermodynamic, and environmental sustainability parameters of Sesamum indicum crop residue

Understanding the pyrolysis kinetics, thermodynamic, and environmental sustainability parameters of Sesamum indicum crop residue

Evaluation on thermal pyrolysis of biomass straw waste: Focusing aspects of products yields, syngas emissions and solid products characterization

Kinetics and thermodynamic analysis of pyrolysis of paper waste

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