Author Correction: Optimized Biodiesel Production from Waste Cooking Oil (WCO) using Calcium Oxide (CaO) Nano-catalyst

Degfie, Tadesse Anbessie; Mamo, Tadios Tesfaye; Mekonnen, Yedilfana Setarge

doi:10.1038/s41598-023-32726-x

Cited by 3 publications

(4 citation statements)

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“…The biodiesel was then washed twice in preheated water at 80 °C with 50 % biodiesel in the wash water and allowed to sit until two layers developed. To remove the water content, the biodiesel was dried in a dryer at 110 °C for 30 m. By allowing it to settle for 2-3 d, suspended solid catalyst was eliminated [26].…”

Section: Transesterification Processmentioning

confidence: 99%

“…6 shows that there was a relatively significant interaction between each two variables (temperature and M/O ratio, time and temperature, time and M/O ratio). The biodiesel yields generally increased with increasing temperature, since sufficient heat energy must be provided to overcome the diffusion resistance that develops in the three-phase reaction mixture (i.e., oil-alcohol-catalyst) [26].…”

Section: Effect Of Process Parametersmentioning

confidence: 99%

“…However, the backward reaction starts after reactions carried beyond the optimal reaction duration. Hence, too long a reaction time reduces the biodiesel yield [26] and, with increasing M/O ratio, the yield began to decline. Because of a separation issue brought on by an increase in glycerol solubility as a result of too much methanol, the biodiesel output decreases with increasing M/O ratio.…”

Section: Effect Of Process Parametersmentioning

confidence: 99%

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Optimization of Biodiesel Production from Waste Cooking Oil Using Nano Calcium Oxide Catalyst

Tayeb,

Abdel-Hamid,

Osman

et al. 2023

Chem Eng & Technol

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The use of nano calcium oxide as a catalyst in biodiesel production has gained attention due to its high catalytic activity, low cost, and environmental friendliness. It efficiently converts triglycerides to fatty acids and methyl esters. In the present study, nano CaO was prepared by precipitation and characterized by various techniques. The results showed that the nano CaO has high purity, nanoscale crystal size, good thermal stability, and high specific surface area. Biodiesel was produced by transesterification from waste cooking oil, methanol, and the nano catalyst. Response surface methodology was applied to predict the optimum parameters for the production of the biodiesel based on its yield. The produced biodiesel was characterized by FTIR spectroscopy and GC‐MS and evaluated according to ASTM D6571.

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Section: Transesterification Processmentioning

confidence: 99%

Section: Effect Of Process Parametersmentioning

confidence: 99%

Section: Effect Of Process Parametersmentioning

confidence: 99%

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Optimization of Biodiesel Production from Waste Cooking Oil Using Nano Calcium Oxide Catalyst

Tayeb,

Abdel-Hamid,

Osman

et al. 2023

Chem Eng & Technol

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“…Thus, converting WCO into beneficial products can not only eliminate potential hazards in regard to food safety, health and the environment, but also bring economic benefits, increase regional income, and create job opportunities [39]. Over the past two decades, significant advancements have been made in recycling and harnessing WCO, leading to the creation of diverse products such as biodiesel [40,41], biolubricants [42][43][44], alkyd resins [45], bioplasticizers [44,46,47], cleaning agents [48,49], and other related items [50][51][52]. However, it is worth noting that conventional products derived from WCO often yield narrow profit margins, often falling below 20% and thus necessitate robust policy and financial backing.…”

Section: Introductionmentioning

confidence: 99%

A 4D-Printable Photocurable Resin Derived from Waste Cooking Oil with Enhanced Tensile Strength

Liu,

Fan

et al. 2024

Molecules

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In pursuit of enhancing the mechanical properties, especially the tensile strength, of 4D-printable consumables derived from waste cooking oil (WCO), we initiated the production of acrylate-modified WCO, which encompasses epoxy waste oil methacrylate (EWOMA) and epoxy waste oil acrylate (EWOA). Subsequently, a series of WCO-based 4D-printable photocurable resins were obtained by introducing a suitable diacrylate molecule as the second monomer, coupled with a composite photoinitiator system comprising Irgacure 819 and p-dimethylaminobenzaldehyde (DMAB). These materials were amenable to molding using an LCD light-curing 3D printer. Our findings underscored the pivotal role of triethylene glycol dimethacrylate (TEGDMA) among the array of diacrylate molecules in enhancing the mechanical properties of WCO-based 4D-printable resins. Notably, the 4D-printable material, composed of EWOA and TEGDMA in an equal mass ratio, exhibited nice mechanical strength comparable to that of mainstream petroleum-based 4D-printable materials, boasting a tensile strength of 9.17 MPa and an elongation at break of 15.39%. These figures significantly outperformed the mechanical characteristics of pure EWOA or TEGDMA resins. Furthermore, the EWOA-TEGDMA resin demonstrated impressive thermally induced shape memory performance, enabling deformation and recovery at room temperature and retaining its shape at −60 °C. This resin also demonstrated favorable biodegradability, with an 8.34% weight loss after 45 days of soil degradation. As a result, this 4D-printable photocurable resin derived from WCO holds immense potential for the creation of a wide spectrum of high-performance intelligent devices, brackets, mold, folding structures, and personalized products.

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Synthesis of Pure and High-Quality Biodiesel from Waste Frying Oil Using CaO Prepared from Waste Coralline Sand

Singh,

Pradhan,

Pradhan

et al. 2023

Waste Biomass Valor

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Biodiesel is projected to replace the conventional diesel which is naturally occurring from a non-renewable resource called petroleum. Biodiesel generally prepared from bioresources and improves rural economy. The present research focuses on synthesis of biodiesel from waste cooking oil using catalyst generated from waste material. Waste coralline sand degraded from parent coral reef rock was used to make high purity and low cost CaO, and used in the production of biodiesel as an effective heterogeneous solid base catalyst. The calcination temperature was held at 800 °C for 3.5 hours, yielding a high purity CaO catalyst. Well-known tools namely XRD, FT-IR, and TGA were employed to characterize the catalyst that was obtained. Elemental analysis and surface morphology were observed with SEM-EDX, respectively. To produce biodiesel, each batch went through a succession of transesteri cation reactions. Each experiment examined how the co-solvent changed the yield of biodiesel. Biodiesel of high grade and purity was produced and analysed using 1 H NMR and FI-IR spectra. There are some variables which adversely affected biodiesel yield, like reaction time, temperature, molar ratio, and concentration of the catalyst. The density, kinematic viscosity, cloud point, and other properties of synthesised biodiesel were investigated using ASTM guidelines. It was established that the developed CaO catalyst was reused up to 5 times without substantially degrading its catalytic activity.

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Author Correction: Optimized Biodiesel Production from Waste Cooking Oil (WCO) using Calcium Oxide (CaO) Nano-catalyst

Cited by 3 publications

References 0 publications

Optimization of Biodiesel Production from Waste Cooking Oil Using Nano Calcium Oxide Catalyst

Optimization of Biodiesel Production from Waste Cooking Oil Using Nano Calcium Oxide Catalyst

A 4D-Printable Photocurable Resin Derived from Waste Cooking Oil with Enhanced Tensile Strength

Synthesis of Pure and High-Quality Biodiesel from Waste Frying Oil Using CaO Prepared from Waste Coralline Sand

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