Thermogravimetric pyrolysis of residual biomasses obtained post-extraction of carnauba wax: Determination of kinetic parameters using Friedman's isoconversional method

Carvalho, Pollyana R.; Medeiros, Samuel Lucas Santos; Paixão, Raul; Figueredo, Igor M.; Mattos, Adriano Lincoln Albuquerque; Rios, Maria Alexsandra de Sousa

doi:10.1016/j.renene.2023.03.073

Cited by 10 publications

(3 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the oxidative atmosphere, the first event represents the moisture loss (57.8-135.2 • C), the second represents the mass loss attributed to the release of volatile materials (243.2-357.3 • C), and also the decomposition of hemicellulose, cellulose, and partial degradation of lignin [43,45,47,48], and the third event represents the decomposition of cellulose and the lignin (414.3 and 733.6 • C). In the nitrogen atmosphere, the first event represents the moisture loss (54.9-137.2 • C), and the second represents the mass loss attributed to the release of volatile materials and decomposition of hemicellulose, cellulose, and partial degradation of lignin (241.8 and 355.1 • C) [43,87]; see Table 3. According to Yang et al (2007), the degradation zone of the hemicellulose occurs between 220 and 315 • C, the cellulose between 315 and 400 • C, and the lignin between 160 and 900 • C [88].…”

Section: Discussionmentioning

confidence: 99%

“…Thermal analysis is one of the techniques most used to investigate the thermal behavior of lignocellulosic biomass [43][44][45][46]. In thermogravimetry (TG), data are collected by the progress of mass change versus temperature, and the thermogram can be used to obtain the volatile matter and ash quantities as well as the differences in thermal response due to varying proportion of the hemicellulose, cellulose, and lignin [47].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of the Fuel Properties of the Seed Shell of the Neem Plant (Azadirachta indica)

Neto,

Melo Neta,

Sousa

et al. 2023

Processes

Self Cite

View full text Add to dashboard Cite

The energetic potential of the seed shell of the Neem plant (Azadirachta indica) was investigated using proximate analysis, Higher Heating Value (HHV), thermal analysis (TG-DTG and DSC) in inert and oxidative atmospheres, and X-ray fluorescence (XRF). The results of ash (3.80% ± 0.44), volatile matter (81.76% ± 1.30), fixed carbon (14.44% ± 1.74), and estimated HHV (18.791 MJ/kg: average value) are compatible with other biomasses already used as fuels in the bioenergy industry. Thermograms showed three main degradation events in synthetic air and two in nitrogen, attributed to the moisture, release of volatile materials, and decomposition of hemicellulose, cellulose, and lignin. The elements positively detected by the XRF were Ca, K, S, P, Fe, Ti, Zn, Rb, and Sr.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of the Fuel Properties of the Seed Shell of the Neem Plant (Azadirachta indica)

Neto,

Melo Neta,

Sousa

et al. 2023

Processes

Self Cite

View full text Add to dashboard Cite

show abstract

“…The values of 3434 cm −1 for the BC and 3430 cm −1 for the MBC, as shown in Figure 1b, indicated that the molecules contained hydroxyl [34]. In both the BC and the MBC, the wavelengths of 2928 cm −1 and 1419 cm −1 were, respectively, C-H [35] stretching vibrations and C=N [36]; 1103 in the BC and 1108 in the MBC were non-carboxyl C-O stretching vibrations [37,38]. In the BC, 615 cm −1 was the -C-H bending vibration, and 1579 cm −1 was the aromatic stretching C=C bond [38,39].…”

Section: Biochar Microstructuresmentioning

confidence: 92%

Synthesis of MgO-Coated Canna Biochar and Its Application in the Treatment of Wastewater Containing Phosphorus

Xiao,

Long,

et al. 2024

Water

View full text Add to dashboard Cite

In order to treat phosphorus-containing wastewater and realize the resource utilization of wetland plant residues, biochar was prepared by the pyrolysis of canna aquatic plant waste at 700 °C, and the adsorption characteristics of phosphorus by MgO-modified biochar (MBC) were explored. The main results are as follows: the adsorption capacity of the MBC was eight times that of unmodified biochar (BC), and the adsorption capacity was up to 244 mg/g. The isothermal adsorption data were consistent with the Langmuir equation, which indicates monolayer adsorption. The functional groups changed little before and after the modification, but a new diffraction peak appeared after the modification. Compared with the standard card, it was suggested that there were MgO crystals with a higher purity. SEM images showed that the BC had a smooth surface, an obvious pore structure, and a thin pore wall, while the MBC had a rough surface and a layered structure, which can provide more adsorption sites for phosphate adsorption. In addition, an XPS analysis showed that Mg3(PO4)2 crystals appeared on the surface of the MBC after adsorption. The mechanism analysis showed that MgO is an important substance for MBC to adsorb phosphorus, and electrostatic adsorption and complex precipitation play key roles. In the test to verify the removal of actual phosphorus-containing wastewater by MBC, it was found that the removal rates for wastewater with 2.06 mg/L and 199.8 mg/L of phosphorus by MBC were as high as 93.4–93.9% and 99.2–99.3%, respectively. MBC can be used as an efficient adsorbent for phosphorus removal.

show abstract

Synthesis of magnetic biochar composite using Vateria indica fruits through in-situ one-pot hydro-carbonization for Fenton-like catalytic dye degradation

Selvaraj,

Nagendran,

Murugesan

et al. 2024

Environmental Research

View full text Add to dashboard Cite

Thermogravimetric pyrolysis of residual biomasses obtained post-extraction of carnauba wax: Determination of kinetic parameters using Friedman's isoconversional method

Cited by 10 publications

References 48 publications

Analysis of the Fuel Properties of the Seed Shell of the Neem Plant (Azadirachta indica)

Analysis of the Fuel Properties of the Seed Shell of the Neem Plant (Azadirachta indica)

Synthesis of MgO-Coated Canna Biochar and Its Application in the Treatment of Wastewater Containing Phosphorus

Synthesis of magnetic biochar composite using Vateria indica fruits through in-situ one-pot hydro-carbonization for Fenton-like catalytic dye degradation

Contact Info

Product

Resources

About