Biodiesel production from refined coconut oil using hydroxide-impregnated calcium oxide by cosolvent method

Bambase, Manolito E.; Almazan, Rober Angelo R.; Demafelis, Rex B.; Sobremisana, Marisa J.; Dizon, Lisa Stephanie H.

doi:10.1016/j.renene.2020.08.115

Cited by 39 publications

(25 citation statements)

References 12 publications

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“…Coconut oil is an essential source of basic oleochemicals, such as detergents, surfactants, and soaps [59]. The properties of coconut oil, such as high FFAs and cetane number, have made this oil the potential feedstock for biodiesel production [4,60,61]. Unlike other vegetable oils, coconut oil contains mostly a long carbon chain, which is C 12 (~50 %) [4,35].…”

Section: Edible Oilsmentioning

confidence: 99%

“…Several researchers have reported biodiesel production from coconut oil. Bambase et al [60] achieved 81.70 % biodiesel yield using tetrahydrofuran as a co-solvent and also a heterogeneous catalyst. They evaluated the effectiveness of co-solvent in increasing biodiesel yield, and successfully achieved a higher biodiesel yield (81.70 %) compared to the conventional method (66.36 %).…”

Section: Edible Oilsmentioning

confidence: 99%

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Utilization of Dairy Scum Waste as a Feedstock for Biodiesel Production via Different Heating Sources for Catalytic Transesterification

et al. 2022

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The increasing demand of the world energy consumption has made it necessary to shift energy technologies toward renewable energy sources. The sustainability of feedstock can be maintained when utilizing feedstock from waste sources, such as dairy waste, food waste, and others. Dairy waste is one of the cheapest sources available. The compositions of dairy waste scum, including free fatty acids (8–10 %), triglycerides (more than 80 % in dry bases), and fats around 60 %, which have the potential to be used as the feedstock for biodiesel production in the presence of certain catalysts. To ensure more sustainability, the catalyst should be derived from waste (e.g., eggshells and cow bones) that consists of calcium oxide, which can then be used to catalyze the transesterification of dairy waste. This review emphasizes the current production of dairy waste globally and the potential of the waste and other types of organic waste as feedstock for biodiesel production, as well as determines the optimum reaction conditions for high‐quality biodiesel production.

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Section: Edible Oilsmentioning

confidence: 99%

Section: Edible Oilsmentioning

confidence: 99%

Utilization of Dairy Scum Waste as a Feedstock for Biodiesel Production via Different Heating Sources for Catalytic Transesterification

et al. 2022

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“…Bambase et al. noticed the effect of OH − impregnated CaO on the transesterification of coconut oil in the crude biodiesel which shows that calcium hydroxide can be used in diesel production [4] . The metal hydroxide‐organic frameworks (MHOFs) for oxygen evolution reaction has been reported by Yuan et al.…”

Section: Introductionmentioning

confidence: 99%

“…[3] Bambase et al noticed the effect of OH À impregnated CaO on the transesterification of coconut oil in the crude biodiesel which shows that calcium hydroxide can be used in diesel production. [4] The metal hydroxide-organic frameworks (MHOFs) for oxygen evolution reaction has been reported by Yuan et al and found that the oxygen evolution reaction activity can be enhanced by over three orders of magnitude per metal site when the Ni based MHOFs substituted with acidic cations. [5] Ca(OH) 2 has many applications in biomedical, [6,7] dental traumatology, [8,9] and Portland cement production.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nitrate Doping on the Properties of Chemically Synthesized Calcium Hydroxide Nanoparticles

et al. 2022

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Calcium hydroxide has drawn a significant attention of current researchers due to its multifunctional applications in the field of biomedical, catalysis, and culture heritage conservation. In this work, the synthesis of calcium hydroxide was done by using the simple chemical precipitation method. The prepared calcium hydroxide was then doped with the three different concentrations e. g., 4, 7 and 10 Wt. % of calcium nitrate. The entire prepared samples were characterized by the XRD (X‐ray diffraction), FESEM (field emission scanning electron microscope), DTA‐TGA (Thermogravimetric analysis‐ Differential thermal analysis), and UV‐Vis spectroscopy techniques. From the X‐ray diffraction results, it was observed that with increase in calcium nitrate doping the crystallites size decreases from 83 nm to 70 nm. The thermal properties also varied as a function of calcium nitrate doping. Further, the UV‐Vis spectroscopy results showed the increase in optical band gap with increase in calcium nitrate doping. These results are explained in terms of structural, microstructural, thermal, and optical band gap characteristics. Finally, the implication of these results in development of a better material for thermochemical energy storage is discussed.

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“…They are derived from different bio-sources such as vegetable oils, used lubricating oils, or algae. Many types of biofuels can be obtained from raw bio-sources, including Jatropha oil [1], cottonseed oil [2,3], palm oil [4], used lubricant oils [5], used vehicle tires [6], coconut oil [7], soybean oil [8,9], rapeseed oil [10], microalgae [11,12], waste animal fat [13], Crambe oil [14], rubber seed oil [15], castor oil [16], and waste cooking oil [17]. Waste biomass has also been used to produce bioethanol [18,19] or biomethane [20].…”

Section: Introductionmentioning

confidence: 99%

Rheological Properties of the Jojoba Biofuel

Ghannam

Selim

2021

Sustainability

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Jojoba oil biofuel is a potential alternative to diesel fuel with attractive properties, but its flow behavior under the operating conditions of a diesel engine still needs to be clarified. In this study, the rheological properties of the jojoba biofuel are presented in assessment with diesel fuel to experimentally evaluate both their flow behaviors at different operating temperatures. A Fann-type coaxial cylinder viscometer was employed. The shear stress of the tested biofuel rises considerably with the shear rate in a marginally nonlinear manner on a logarithmic scale. Rheograms indicate that the flow behavior decreases gradually and considerably in the temperature range of 30–90 °C. The viscosity of the jojoba oil biofuel declines considerably with the decreasing applied shear rate and temperature. Based on the experimental results, a suitable model is developed for predicting the viscosity characteristics of the tested biofuel during the heating and cooling cycles of a diesel engine.

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Biodiesel production from refined coconut oil using hydroxide-impregnated calcium oxide by cosolvent method

Cited by 39 publications

References 12 publications

Utilization of Dairy Scum Waste as a Feedstock for Biodiesel Production via Different Heating Sources for Catalytic Transesterification

Utilization of Dairy Scum Waste as a Feedstock for Biodiesel Production via Different Heating Sources for Catalytic Transesterification

Effect of Nitrate Doping on the Properties of Chemically Synthesized Calcium Hydroxide Nanoparticles

Rheological Properties of the Jojoba Biofuel

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