Rapid and low-temperature biodiesel production from waste cooking oil: Kinetic and thermodynamic insights using a KOH/ZnAl2O4 nanocatalyst derived from waste aluminum foil

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 318, P. 118898 - 118898

Published: Aug. 10, 2024

Language: Английский

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Box-Behnken design (BBD) for optimization and simulation of biolubricant production from biomass using aspen plus with techno-economic analysis

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Sept. 18, 2024

Language: Английский

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Valorization of dairy waste scum oil and rice husk ash-supported CuO nanocatalyst towards cleaner production of biodiesel: A waste-to-energy approach

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 192, P. 1393 - 1407

Published: Nov. 5, 2024

Language: Английский

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Fabrication of 3D ultrathin porous heterostructural Co3O4/Al2O3 material based on LDHs memory effect and its high NO sensing performance at room temperature

Applied Surface Science, Journal Year: 2024, Volume and Issue: 669, P. 160512 - 160512

Published: June 10, 2024

Language: Английский

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Using NaOH@Graphene oxide-Fe3O4 as a magnetic heterogeneous catalyst for ultrasonic transesterification; experimental and modelling

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: June 22, 2024

Abstract Burning fossil fuels causes toxic gas emissions to increase, therefore, scientists are trying find alternative green fuels. One of the important is biodiesel. However, using eco-friendly primary materials a main factor. Sustainable catalysts should have high performance, good activity, easy separation from reaction cells, and regenerability. In this study, solve mentioned problem NaOH@Graphene oxide-Fe 3 O 4 as magnetic catalyst was used for first time generate biodiesel waste cooking oil. The crystal structure, functional groups, surface area morphology were studied by XRD, FTIR, BET, FESEM techniques. response methodology based central composite design (RSM-CCD) production via ultrasonic technique. maximum yield 95.88% in following operation: 10.52:1 molar ratio methanol oil, weight 3.76 wt%, voltage 49.58 kHz, 33.29 min. physiochemical characterization ASTM standard. standstill free fatty acid due five cycle’s regeneration. kinetic study results possess agreement with first-order kinetics well activation energy Arrhenius constant 49.2 kJ/min 16.47 * 10 min −1 , respectively.

Language: Английский

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Nano-CaO as a heterogeneous catalyst for biodiesel synthesis by transesterification of Jatropha oil

Journal of Trace Elements and Minerals, Journal Year: 2024, Volume and Issue: 9, P. 100183 - 100183

Published: June 30, 2024

This research employs response surface methodology, specifically Central Composite Design (CCD), to optimize the process parameters for effective production of biodiesel. Jatropha oil was utilized as raw material minimize expenses. A nanocatalyst a solid catalyst, developed from CaCO3 via waste snail shells, offering advantages such recyclability and improved catalytic activity during transesterification process. The analyzed using various techniques, including dynamic light scattering (DLS), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) analysis, Fourier-transform infrared (FTIR). BET analysis revealed area 5.1m2/g Barrett-Joyner-Halenda (BJH) provided insights into pore volume diameter synthesized nano-CaO, showing values 0.002556 cc/g 1.1 nm, respectively, indicating presence both microspores active sites on external nano-CaO catalyst. Biodiesel conversion controlled by adjusting factors like methanol ratio, catalyst weight, reaction time, temperature, agitation speed. quadratic model established explore correlation between independent variables biodiesel rate. results showed maximum rate 96.73% under optimal conditions: ratio (6:1), weight (1.4 wt%), time (60 min), temperature (55 °C), speed (250 rpm). These were determined through 32 experimental trials. RSM technique yielded impressive with coefficient determination (R2) 0.9834, adjusted R2 0.8503, predicted 0.8309, variance (CV) 0.75%. Based (ANOVA) findings, exhibits high level significance (p<0.0001), which is less than 0.05 F- Value 29.71.The study aims enhance yield efficiency process, thereby increasing overall fatty acid methyl ester oil. innovative approach efficiently generates renewable resources, in manner that environmentally friendly maximizes effectiveness parameters. evaluation conform quality met standards set ASTM D 6751 EN 14214.

Language: Английский

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Spent mushroom substrate of Ganoderma lucidum developed nanocatalyst (CSA/BaO@K2CO3) for efficient biodiesel synthesis from blended oil feedstock

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 222, P. 119871 - 119871

Published: Oct. 20, 2024

Language: Английский

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Entrapment of Geobacillus kaustophilus lipase in ZIF-8 and cross-linking with genipin for biodiesel production from vegetable oils

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 576, P. 114919 - 114919

Published: Feb. 19, 2025

Language: Английский

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Incorporation of CuO on the αFe2O3 nanoparticles as a heterogeneous catalyst for conversion of waste cooking oil into biodiesel

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 27, 2025

This study focused on generating biodiesel from waste cooking oil (WCO) employing an αFe₂O₃/CuO nanocatalyst synthesized via a co-precipitation method. Several characterization techniques, including FTIR, XRD, SEM-EDX, BET, and TEM analyses, were applied to scrutinize the features of fabricated nanocatalyst. The results confirmed successful incorporation CuO into αFe₂O₃ structure. BET analysis further revealed that addition nanoparticles significantly enhanced catalyst's surface properties, increasing number active sites available for transesterification reactions. Besides, exhibited specific area 334 m²/g, highlighting its high availability catalytic activity. process was statistically optimized using response methodology (RSM) with Box-Behnken design (BBD) assess influence critical reaction parameters. Vital parameters evaluated included temperature (50–70 °C), methanol/WCO molar ratio (8–14 mol/mol), catalyst loading (1–3 wt%). Moreover, ANOVA indicated proportion had most remarkable effect production efficiency, F-value 337.11. Under optimal conditions time 3 h, 11, dosage 2 wt%, 60 °C highest yield 94.27% achieved. Additionally, reusability assessment demonstrated notable stability, only 12% reduction in efficiency observed over seven cycles. research demonstrates nanocatalysts, owing their unique have potential serve as highly effective heterogeneous catalysts transesterification.

Language: Английский

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Optimized biodiesel production from Java olive seeds using a novel magnetic nanobiocatalyst and advanced optimization techniques

Biomass and Bioenergy, Journal Year: 2025, Volume and Issue: 199, P. 107942 - 107942

Published: May 1, 2025

Language: Английский

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