Study on kinetic parameters of different biomass samples using thermo-gravimetric analysis

Parthasarathy, Prakash; Arockiam, L.

doi:10.1016/j.biombioe.2013.08.004

Cited by 86 publications

(37 citation statements)

References 23 publications

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“…The biochar yield decreased from 33.94% to 23.74% with increased pyrolysis temperature from 350 °C to 650 °C. The decline in biochar yield mainly corresponded to cellulosehemicellulose degradation and lignin decomposition with the rise in pyrolysis temperature (Parthasarathy et al 2013). Contrary to the biochar yield, the ash content of the samples noticeably increased, which was mainly due to organic matter loss from the residues and the ash formed from mineral matter after carbonization (Cao and Harris 2010).…”

Section: Physicochemical Properties Of Biocharmentioning

confidence: 93%

Characterization of Biochar Derived from Pineapple Peel Waste and Its Application for Sorption of Oxytetracycline from Aqueous Solution

Fu¹,

Ge²,

Yue³

et al. 2016

BioResources

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Physicochemical characteristics of biochar and its sorption potential for oxytetracycline (OTC) were investigated. Biochars from pineapple peel waste were produced via pyrolysis under oxygen-depleted conditions at 350 °C (BL350), 500 °C (BL500), and 650 °C (BL650), as well as the characteristics and polycyclic aromatic hydrocarbons contents of the samples were compared. The sorption kinetics of OTC onto the biochars was completed in three stages, i.e., a fast stage, a slow stage, and an equilibrium stage after 24 h. The kinetics data were perfectly fitted by the pseudo-second-order model with high correlation coefficients (R 2 > 0.999). All of the sorption isotherms were nonlinear and well described by the Langmuir model. The Langmuir maximum sorption capacity (qmax) increased in the order of BL650 > BL500 > BL350. The thermodynamic parameters revealed that the sorption of OTC onto the biochars was spontaneous and endothermic. Fourier transform infrared spectroscopy (FTIR) of the biochars before and after sorption of OTC confirmed that the H-bonding interaction was the dominant sorption mechanism. The results demonstrated that biochars obtained from inexpensive and renewable materials could be utilized as a highly effective and environmentally friendly adsorbent for removing organic contaminants from wastewater.

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Section: Physicochemical Properties Of Biocharmentioning

confidence: 93%

Characterization of Biochar Derived from Pineapple Peel Waste and Its Application for Sorption of Oxytetracycline from Aqueous Solution

Fu¹,

Ge²,

Yue³

et al. 2016

BioResources

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“…A PC1 apresentou pesos positivos e pesos negativos para as temperaturas de 290 ºC e 340 ºC, respectivamente (Figura 3), indicando que as amostras de capim, café, engaço de banana e açaí com escores positivos na PC1, apresentaram maior degradação térmica nessa temperatura (290 ºC), atribuída a decomposição da hemicelulose (Jeguirim et al, 2014 Observando os gráficos de pesos (Figura 3) percebe-se que para todas as componentes principais (PCs) acima de 400 ºC tem-se uma perda de peso contínua e lenta, atribuída à degradação da lignina (Guimarães et al, 2009;Parthasarathy et al, 2013;Chen et al, 2015).…”

Section: Resultados E Discussõesunclassified

“…Parâmetros como tempo, peso e temperatura são essenciais. No entanto a TGA sozinha não é suficiente para interpretar a perda de peso da amostra (Parthasarathy et al, 2013). Assim a DTG é utilizada, pois ao aplicarmos as operações de derivação aos termogramas brutos, as informações contidas são geralmente acentuadas (bandas mais estreitas) e se tem uma aparente melhora na resolução do termograma.…”

Section: Introductionunclassified

Estudo de análise termogravimétrica de diferentes biomassas lignocelulósicas utilizando a análise por componentes principais

Rambo

Almeida

et al. 2015

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“…The initial degradation temperatures of PL and FL were higher than those of SL and BL. This is probably due to the higher degree of polymerization and molecular weight of wood alkali lignin (Parthasarathy et al 2013;Li and Wu 2014). The maximum devolatilization rate temperatures of the four alkali lignins were 403 °C for PL, 411 °C for FL, 336 °C for SL, and 383 °C for BL.…”

Section: Thermogravimetric Properties Of Alkali Ligninsmentioning

confidence: 97%

Analysis of Structural Units and Their Influence on Thermal Degradation of Alkali Lignins

Hua

Liu

et al. 2016

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The chemical structures of four alkali lignins isolated from poplar, fir, straw, and bagasse were investigated. To explore the relationship between the structural units and the thermal decomposition behavior, the system was tested by elemental analysis, Fourier transform infrared spectrometry, thermogravimetric analysis (TGA), and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). The results indicated that the carbon content of poplar lignin (PL) was higher than that of others. Fir lignin (FL) exhibited the highest guaiacol units, while the other three lignins were abundant in syringol units. The thermal decomposition characteristics and pyrolysis products of the four lignins were influenced by the material structural and composition. The DTG curves showed that the initial temperatures and major degradation temperatures of woody lignins(FL and PL) with complex inherent structures were shifted to the high temperature zoom compared with that of non-woody (BL and SL) lignins. Py-GC/MS analysis showed that guaiacol-type phenolic compounds were predominant pyrolysis products derived from the four lignins. The yield of guaiacol-type phenols could reach 82.87%. Moreover, the BL had selectively on phenol-type compounds with yield of 27.89%.

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Study on kinetic parameters of different biomass samples using thermo-gravimetric analysis

Cited by 86 publications

References 23 publications

Characterization of Biochar Derived from Pineapple Peel Waste and Its Application for Sorption of Oxytetracycline from Aqueous Solution

Characterization of Biochar Derived from Pineapple Peel Waste and Its Application for Sorption of Oxytetracycline from Aqueous Solution

Estudo de análise termogravimétrica de diferentes biomassas lignocelulósicas utilizando a análise por componentes principais

Analysis of Structural Units and Their Influence on Thermal Degradation of Alkali Lignins

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