An investigation on the kinetic behavior and thermodynamic parameters of the oxy-fuel combustion of Brazilian agroindustrial residues

Nóbrega, Claudia Rosa do Espírito Santo; Silva, Julie Brenda Santos da; Monteiro, Thalyssa Oliveira; Crnkovic, Paula Manoel; Cruz, Glauber

doi:10.1007/s40430-022-03993-y

Cited by 4 publications

(2 citation statements)

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“…Although such vibrations are normally observed in bands between 3400 and 3440 cm −1 , a shift to lower band values, such as 3300 cm −1 , may have occurred due to the hydrogen bond with a peptide [61]. The absorption bands located around 3327 cm −1 are attributed to OH bonds [53]. A band between 2920 and 2950 cm −1 was detected with higher intensity in the 100FS and B25 samples and corresponds to the presence of an aliphatic branch of C-H hydrocarbon [62].…”

Section: Fourier Transformed Infrared Spectroscopy (Ftir)mentioning

confidence: 98%

“…The samples analyzed in this study showed below 1.0% sulfur content. According to Nóbrega et al [53], low nitrogen and sulfur contents indicate less polluting biomass since they are neither prone to the formation of NO X and SO X nor can reduce the slag formation when applied in conventional combustion processes.…”

Section: Proximate Ultimate and Heating Value Analysesmentioning

confidence: 99%

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Evaluation of the Bioenergy Potential of Blends (Green Coconut Shells and Fish Scales) as a Feedstock in Thermochemical Processes for Clean Energy Production

Monroe,

Silva,

Melo

et al. 2024

Processes

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Brazil is among the world’s largest producers of green coconut, which contributes to inappropriate disposal and socioenvironmental impacts. Concomitantly, some of its coastal cities produce a great diversity of fish and large amounts of solid waste. This paper reports on the use of samples of fish scales (100FS) and green coconut shells (100GCS) and their mixtures in 75%FS:25%GCS (B25), 50%FS:50%GCS (B50), and 25%FS:75%GCS (B75) proportions and quantification of their Higher Heating Values (HHV) and Lower Heating Values (LHV), and Ultimate (UA) and Proximate Analyses (PA). Their thermal behavior was investigated by thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC), whereas scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and Fourier transformed infrared (FTIR) were employed for analyses of their physicochemical and morphostructural properties. When compared to in natura samples, SEM images of the blends detected a structural disorder and a highly fibrous structure with an elongated chain and surface roughness. HHV were superior in samples with 100GCS (16.64 MJ kg−1), B75 (15.80 MJ kg−1), and B50 (14.98 MJ kg−1), and lower in B25 (14.16 MJ kg−1) and 100FS (13.03 MJ kg−1), with acceptable values for different biomasses. TG/DTG and DSC curves showed similarities among the samples, with the detection of their main thermoconversion stages. According to the data, the samples can be applied as renewable energy sources to mitigate socioecological illnesses and social vulnerabilities resulting from the archaic and inadequate management of solid waste.

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Section: Fourier Transformed Infrared Spectroscopy (Ftir)mentioning

confidence: 98%

Section: Proximate Ultimate and Heating Value Analysesmentioning

confidence: 99%