Investigation on kinetic parameters during combustion of Tetraselmis chuii microalgae under thermogravimetric analyzer

Prasetiyo, Ardianto; Sukarni, Sukarni; Wulandari, Retno; Widiono, Aloon Eko; Suryanto, Heru; Yanuhar, Uun

doi:10.1063/5.0013582

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…The characteristic parameters of pure microalgae and its blend in the active combustion zone were shown in Table 1. It could be seen from Table 1 and by referring to previous research by Prasetiyo et al, [15] about T.Chuii pure microalgae, that addition of TiO2 nanoparticle promoted the decomposition process toward the lower temperature. In the stage II decomposition was shifted from 174 to 162 °C, stage III moved from 349 toward 346 °C, and in stage IV, TiO2 nanoparticle provoked the combustion of char to be twice step indicated by the emergence of a new small hump in the DTG graph.…”

Section: Resultsmentioning

confidence: 62%

Thermal Characteristic of Tetraselmis chuii Combustion Influenced by Titanium Dioxide (TiO2) Nanoparticle

Sukarni

Prasetiyo

Wulandari

et al. 2020

KEM

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The investigation of Titanium dioxide (TiO2) nanoparticles on the thermal characteristic of Tetraselmis chuii (T.Chuii) microalgae during combustion process has been carried out through a thermogravimetric (TG) analyzer. T.Chuii microalgae samples were cultured within 8 days at BBPBAP Jepara, Central Java, Indonesia. The microalgae sediment was dried at 80°C for 24 hours then was powdered by means of a mortar. Thereafter, the dried powder of microalgae was filtered with a size of 60 mesh. Titanium dioxide (TiO2) nanoparticles were used as catalysts with the particle size of < 25 nm; these were obtained from Singapore’s Sigma Aldrich. Amount of 0.03 mg of TiO2 and 10 mg of T.Chuii microalgae were mixed mechanically using a mortar to guarantee the homogeneous blend, and then this sample was heated up in the oven for 14 hours at 80°C. The TG experiment was performed at a temperature range 25 to 900°C with atmospheric air at a flow rate of 50 mL/min and a heating rate of 15 °C/min. Differential method of Arrhenius is applied to evaluate kinetic parameters, including reaction order (n), activation energy (Ea), and pre-exponential factor (log A) that were 0.9; 74,191 kJ/mol and 6.38 min-1 for the stage II and 0.87; 118.47 kJ/mol and 7.29 min-1 for stage V.

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Section: Resultsmentioning

confidence: 62%

Thermal Characteristic of Tetraselmis chuii Combustion Influenced by Titanium Dioxide (TiO2) Nanoparticle

Sukarni

Prasetiyo

Wulandari

et al. 2020

KEM

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Characteristics and modeling kinetics of oil palm frond petiole pyrolysis using thermogravimetric analyzer

Prasetiyo

Sukarni

Wibowo

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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As one of the largest palm oil-producing countries globally, Indonesia produces abundant oil palm biomass; indeed, it brings large oil palm frond petiole (OPFP). OPFP is one of the oil palm biomass that can be converted into an energy source. This research focuses on analyzing thermal decomposition characteristics and pyrolysis kinetics of OPFP using thermogravimetric analysis (TGA). The results showed that the thermal decomposition of pyrolysis was divided into three steps, including the evaporation stage of moisture content, the releasing of volatile compounds and organic matter, and the final stage of lignin and tar decomposition. Both the activation energy and the pre-exponential factors were analyzed with the Coats-Redfern method in step II active pyrolysis zone are 80.56 kJ/mol and 7.21/min, respectively, as shown in the Chemical Reaction Order F1.5 model with the accuracy of a correlation coefficient of 0.99. These results provided the fundamental data useful for properly designing the reactor system for industrial purposes.

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Investigation on kinetic parameters during combustion of Tetraselmis chuii microalgae under thermogravimetric analyzer

Cited by 2 publications

References 11 publications

Thermal Characteristic of <i>Tetraselmis chuii</i> Combustion Influenced by Titanium Dioxide (TiO<sub>2</sub>) Nanoparticle

Thermal Characteristic of <i>Tetraselmis chuii</i> Combustion Influenced by Titanium Dioxide (TiO<sub>2</sub>) Nanoparticle

Characteristics and modeling kinetics of oil palm frond petiole pyrolysis using thermogravimetric analyzer

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