Influence of Physico-Chemical Parameters on Fuel Briquettes Properties Formulated with Mixture of Biomasses

Inna, Samomssa; Nono, Yvette Jiokap; Tsamo, Cornelius; Dinică, Mihaela Rodica; Kamga, R.

doi:10.30799/jespr.165.19050202

Cited by 7 publications

(10 citation statements)

References 16 publications

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“…We note that these results are in agreement with the chemical composition of coffee hulls: the major constituents of which are cellulose, hemicellulose and lignin; they degrade with a strong loss of mass [28].…”

Section: Thermal Analysissupporting

confidence: 85%

“…In addition, hemicelluloses decompose at low temperatures because their molecular chains are short. In addition to their low molecular mass, they have less regular structures in their chains [28].…”

Section: Thermal Analysismentioning

confidence: 99%

“…One endothermic peak observed at lower temperature around 86˚C and three exothermic peaks range between 321˚C, 401˚C and 423˚C. The first thermal incident was attributed to evaporation of water molecules from fibers; the second third and fourth respectively represent the degradation of holocelluloses, celluloses and lignin from the coffee hulls [28] (Table 2). Advances in Materials Physics and Chemistry The large peak intensity at 3299 cm −1 can be attributed to O-H stretching group of alcohol (cellulose content in coffee pulp).…”

Section: Thermal Analysismentioning

confidence: 99%

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Thermal and Physicochemical Characterization of Fibers from Coffee Hulls as Filler for Linear Low Density Polyethylene (LLDPE)

Tom¹,

Tame²,

Djonga³

et al. 2021

AMPC

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This work presents the thermal, physical and chemical characterization of Coffee canephora, from littoral region of Cameroon, for their use as reinforcement for polymeric materials. The infrared of coffee hulls shows the presence of a large peak intensity at 3299 cm −1 that can be attributed to O-H stretching group of alcohol (cellulose content in coffee pulp). The intensity 2926 cm −1 can be attributed to C-H stretching group of alkanes or the vibration of methoxy group of lignin. Thermo gravimetric analysis shows that around 440˚C, the biomass has been completely consumed; the temperature profiles show a peak at 86˚C that could correspond to the loss of water as evaporation at a percentage of 8%; the peak at 321˚C is accompanied by a water loss of 64.50%; this temperature is assimilated to the degradation of hemicelluloses; the temperature range from 321˚C to 401˚C is accompanied by a loss of mass of 22.80%, which would be due to the degradation of cellulose. SEM images of the surface of raw coffee hulls, coffee hulls treated with caustic soda respectively clearly reveal gaps between the fibers. The results showed that the incorporation of coffee hulls fiber in LLDPE matrix might result in composites with suitable property application for various industrial fields; especially those that were mechanical features are crucial, such as the replacement of engineering plastics.

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Section: Thermal Analysissupporting

confidence: 85%

Section: Thermal Analysismentioning

confidence: 99%

Section: Thermal Analysismentioning

confidence: 99%

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Thermal and Physicochemical Characterization of Fibers from Coffee Hulls as Filler for Linear Low Density Polyethylene (LLDPE)

Tom¹,

Tame²,

Djonga³

et al. 2021

AMPC

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“…Between 401˚C and 423˚C, a loss of 5.12% is observed having a peak around 423˚C, which would be due to the degradation of the lignin at 423˚C [20]. We note that these results are in agreement with the chemical composition of coffee hulls: the major constituents of which are cellulose, hemicellulose and lignin; they degrade with a strong loss of mass [21]. In addition, hemicelluloses decompose at low temperatures because their molecular chains are short.…”

Section: Thermal Analysis Of Coffee Fiber Hullsupporting

confidence: 82%

“…In addition, hemicelluloses decompose at low temperatures because their molecular chains are short. In addition to their low molecular mass, they have fewer regular structures in their chains [21].…”

Section: Thermal Analysis Of Coffee Fiber Hullmentioning

confidence: 99%

Low Density Linear Polyethylene Reinforced with Alkali and MAPE Treated Fibers from Coffee Pulp

Tom¹,

Tame²,

Djonga³

et al. 2021

OJCM

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In this work fibers derived from coffee, hulls have been incorporated into Linear Low Density Polyethylene (LLDPE). The influence of the filler content on the thermal and physicomechanical properties of the composites obtained was assessed. The results showed that the incorporation of fibers was able to improve the thermostability of LLDPE/Coffee hulls fibers; comparing the treated fiber composite with untreated fiber composites, the chemical treatment reduces by 58.3% the water absorption, while increasing the elongation and tensile strength by about 48% and 17% respectively. Moreover, due to better interfacial interaction induced by MAPE, the corresponding composite exhibited better properties compared to the untreated fiber composite. Results are indicative of the fact that both mercerization and MAPE (coupling agent) have significant positive effects on the fiber-matrix interaction in terms of adhesion, wetting and dispersion, this treatment produced a better fiber distribution and consequently a more uniform composite morphology without voids and gaps between the fibers and the matrix, allowing the possibility to use higher fiber contents (up to 30% wt.) with acceptable mechanical properties.

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Compositional characteristics and theoretical energy potential of animal droppings from Adamawa region of Cameroon

Inna

Henriette²,

Boukar³

et al. 2022

Biomass Conv. Bioref.

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Influence of Physico-Chemical Parameters on Fuel Briquettes Properties Formulated with Mixture of Biomasses

Abstract: Influence of physico-chemical parameters on fuel briquettes properties formulated with mixture of biomasses,

Cited by 7 publications

References 16 publications

Thermal and Physicochemical Characterization of Fibers from Coffee Hulls as Filler for Linear Low Density Polyethylene (LLDPE)

Thermal and Physicochemical Characterization of Fibers from Coffee Hulls as Filler for Linear Low Density Polyethylene (LLDPE)

Low Density Linear Polyethylene Reinforced with Alkali and MAPE Treated Fibers from Coffee Pulp

Compositional characteristics and theoretical energy potential of animal droppings from Adamawa region of Cameroon

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