A comparative study on pyrolysis kinetics and thermodynamic parameters of little millet and sunflower stems biomass using thermogravimetric analysis

Mishra, Ashutosh; Nanda, Spandan; Parida, Manas R.; Jena, Pradip Kumar; Dwibedi, Sanat Kumar; Samantaray, Saubhagya Manjari; Samantaray, Debiprasad; Mohanty, Mahendra Kumar; Dash, Manasi

doi:10.1016/j.biortech.2022.128231

Cited by 35 publications

(3 citation statements)

References 37 publications

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“…The observation of varying activation energy values in relation to changes in biomass conversion levels highlights the intricate nature of the pyrolysis process for RS. [ 28,29 ] As the conversion level gradually increased from 0.2 to 0.8, the corresponding E a values exhibited a simultaneous rise for the Kusumakali variety, indicating the endothermic nature of the pyrolysis process. In the case of both the Kusumakali and Surendra varieties, the average A values were determined to be 6.3 × 10 14 and 9.6 × 10 22 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Thermodynamic, spectroscopic, and molecular characterization of rice straw biomass for use as biofuel feedstock

Nanda,

Swain,

Priyadarsini

et al. 2024

Can J Chem Eng

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India is one of the leading producers of rice in the world. Gasification and pyrolysis are two thermochemical processes. In the gasification process, biomass is transformed into syngas, which serves as an energy source. This conversion occurs under high temperatures with a carefully regulated and restricted air supply. On the other hand, pyrolysis, which transpires at lower temperatures without the presence of air, generates pyrolysis oil as a by‐product. This oil can be further refined into liquid fuels. For the purpose of investigating the feasibility of biofuel production, the current study involved the characterization of rice straw biomass using various techniques such as thermogravimetry differential thermal analysis (TG/DTA), Fourier transform infrared (FTIR), carbon, hydrogen, nitrogen, sulphur and oxygen (CHNS/O), inductively coupled plasma optical emission spectroscopy (ICP‐OES), among others. These analytical methods were employed to assess the potential of rice straw biomass for the production of biofuels. The existence of a significant amount of cellulose (32.1%), volatiles (approximately 67.06%), and high heating value (HHV) (13.18 MJKg−1) in rice straw inferred their capability to be used as feedstocks in the production of biofuel. The activation energy of approximately 173.20 KJ/Mol (Flynn Wall Ozawa [FWO]) indicated the viability of the burning process. From master plot (Z(α)) analysis, the experimental curve was seen passing through different theoretical curves, indicating the complex nature of the pyrolysis process for rice straw.

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Section: Resultsmentioning

confidence: 99%

Thermodynamic, spectroscopic, and molecular characterization of rice straw biomass for use as biofuel feedstock

Nanda,

Swain,

Priyadarsini

et al. 2024

Can J Chem Eng

Self Cite

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“…It became more difficult for the reaction to occur spontaneously, and more energy was needed to break the chemical bonds inside the biomass. In addition, the large Δ S value indicated that the reaction activity was high and that the time to form the activated complex was short 35 . With the increase of conversion, Δ S values of the three kinds of biomass all turned positive, indicating that the system disorder at this stage was increasing.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the large ΔS value indicated that the reaction activity was high and that the time to form the activated complex was short. 35 With the increase of conversion, ΔS values of the three kinds of biomass all turned positive, indicating that the system disorder at this stage was increasing. This was mainly due to the increase of particle disorder caused by the release of volatile substances and the formation of biochar.…”

Section: Thermodynamic Property Analysismentioning

confidence: 92%

Study on pyrolysis behavior of agricultural and forestry wastes using thermogravimetric‐Fourier transform infrared spectrometer (TG‐FTIR)

Liu,

Li,

Liu

et al. 2023

Asia-Pacific J Chem Eng

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To investigate the effective utilization of agricultural and forestry wastes for mitigating the shortage of primary energy and environmental pollution, the pyrolysis behavior of corn straw (CS), wheat straw (WS), and poplar sawdust (PS) was studied using thermogravimetric–Fourier transform infrared (TG‐FTIR) analysis. The activation energies and pyrolysis mechanism functions of different biomass types were calculated. The results showed that the functional group structures of the gaseous products generated from the pyrolysis of different biomass types were similar, mainly including OH, aliphatic CH, CO, aromatic ring skeleton, aromatic CH, and CO groups. These functional group structures mainly existed in oxygen‐containing compounds such as phenols, ketones, aldehydes, acids, esters, alcohols, and ethers. The pyrolysis process of agricultural and forestry wastes exhibited certain differences, with the PS undergoing thermal decomposition more easily, while the thermal decomposition mechanism functions of the two agricultural wastes (CS and WS) were similar. PS had a later initial release time for volatile matter, and the oxygen compounds produced by its pyrolysis were the highest, followed by WS and CS.

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Improvement of little millet (Panicum sumatrense) using novel omics platform and genetic resource integration

Mishra,

Dash,

Barpanda

et al. 2024

Planta

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A comparative study on pyrolysis kinetics and thermodynamic parameters of little millet and sunflower stems biomass using thermogravimetric analysis

Cited by 35 publications

References 37 publications

Thermodynamic, spectroscopic, and molecular characterization of rice straw biomass for use as biofuel feedstock

Thermodynamic, spectroscopic, and molecular characterization of rice straw biomass for use as biofuel feedstock

Study on pyrolysis behavior of agricultural and forestry wastes using thermogravimetric‐Fourier transform infrared spectrometer (TG‐FTIR)

Improvement of little millet (Panicum sumatrense) using novel omics platform and genetic resource integration

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