Cashew nut husk and babassu coconut husk residues: evaluation of their energetic properties

Gadelha, Antonia; Almeida, Francisca Diva Lima; Silva, Ronaldy Araújo; Malveira, Jackson Queiroz; Lopes, Ada Amélia Sanders; Rios, Maria Alexsandra de Sousa

doi:10.1080/15567036.2019.1692976

Cited by 6 publications

(4 citation statements)

References 23 publications

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“…Green coconut shells are often projected for the pyrolysis process [72][73][74]; however, fish scales showed higher thermal stability, and consequently, both residues presented similar functional groups. Their mixture can improve green coconut shells for biofuel production via pyrolysis.…”

Section: Thermal Analysis (Tg/dtg and Dsc)mentioning

confidence: 99%

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: Thermal Analysis (Tg/dtg and Dsc)mentioning

confidence: 99%

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

Self Cite

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“…Third, identifying innovative ways to reduce waste during processing and exploring opportunities for recycling or upcycling coconut byproducts can contribute to a more eco-friendly supply chain. For example, coconut shells, rich in carbon and phytochemicals, are an environmentally friendly source of solid fuel and offer a variety of industrial applications, including the production of biofuels, absorbents, and bioethanol. , Coconuts harbor a diverse array of phytochemicals that enhance their nutritional and therapeutic properties . The husk of the coconut, containing fiber and pith rich in phenols and other functional components, has potential for conversion into value-added products across multiple industries. , Extracts from coconut fiber contain compounds such as tannins, phenolics, steroids, flavonoids, leucoanthocyanidins, triterpenes, and alkaloids.…”

Section: Sustainability and Environmental Impactmentioning

confidence: 99%

“…For example, coconut shells, rich in carbon and phytochemicals, are an environmentally friendly source of solid fuel and offer a variety of industrial applications, including the production of biofuels, absorbents, and bioethanol. 173,177 Coconuts harbor a diverse array of phytochemicals that enhance their nutritional and therapeutic properties. 178 The husk of the coconut, containing fiber and pith rich in phenols and other functional components, has potential for conversion into value-added products across multiple industries.…”

Section: Sustainability and Environmental Impactmentioning

confidence: 99%

From Palm to Plate: Unveiling the Potential of Coconut as a Plant-Based Food Alternative

Lu,

Zhang,

Wang

2024

J. Agric. Food Chem.

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This review investigates coconut as a sustainable and nutrient-rich plant-based alternative to traditional animal-based food sources. We have explored the nutritional profile, culinary versatility, particularly focusing on the use of coconut meat, milk, cream, and oil in diverse dietary contexts when consumed in balance. Comparative analysis with animal-derived products reveals the high content of medium-chain triglycerides (MCTs), essential vitamins, and minerals in coconut, contrasted with its lower protein content. Researchers have underscored the environmental sustainability of coconut, advocating for its role in eco-friendly food production chains. We have also addressed challenges like potential allergies, nutritional balance, sensory attributes, and consumer motivations for coconut-based products, in terms of understanding the market dynamics. In conclusion, this review positions coconut as a promising candidate within sustainable diet frameworks, advocating for further research to augment its nutritional value, sensory characteristics, and product stability, thereby facilitating its integration into health-conscious and eco-centric dietary practices.

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“…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%

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

Neto,

Melo Neta,

Sousa

et al. 2023

Processes

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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.

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Cashew nut husk and babassu coconut husk residues: evaluation of their energetic properties

Cited by 6 publications

References 23 publications

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

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

From Palm to Plate: Unveiling the Potential of Coconut as a Plant-Based Food Alternative

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

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