Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 321 - 342
Опубликована: Ноя. 29, 2024
Язык: Английский
Bioresource Technology, Год журнала: 2024, Номер 395, С. 130351 - 130351
Опубликована: Янв. 23, 2024
Язык: Английский
Процитировано
11
Energy Conversion and Management X, Год журнала: 2024, Номер 23, С. 100628 - 100628
Опубликована: Май 23, 2024
The pursuit of renewable fuels for the transportation sector, particularly combustion engines like diesel, is crucial in reducing greenhouse gas emissions. This study introduces an innovative strategy biodiesel production utilizing marine macroalgae Ulva lactuca as primary feedstock, emphasizing sustainability and resource efficiency. Lipids were extracted from via a Soxhlet process characterized using GC–MS FTIR to ascertain fatty acid composition functional groups. Cu–BTC@AC catalyst, synthesized lipid-extracted algae residue pyrolysis hydrothermal treatment, underwent characterization SEM–EDS, XRD, techniques. Subsequently, catalyst was employed transesterification efficiently convert algal lipids into biodiesel, achieving high yield 92.56 % under RSM-optimized conditions: 65 °C temperature, 3.96 wt% amount, 15:1 methanol-to-lipid ratio, 140 min reaction time. Kinetic thermodynamic parameters calculated follows: Ea = 33.20 kJ mol−1, ΔH# 30.39 ΔS# –165.86 J mol−1 K−1, ΔG# 86.48 mol−1. analysis identified significant FAME content comprising 98.12 its composition. Notably, exhibited excellent reusability, maintaining 80.21 after third cycle. Moreover, physicochemical confirmed compliance with ASTM D6751 specifications, underscoring potential viable alternative fuel sector.
Язык: Английский
Процитировано
8
Energy & Environment, Год журнала: 2025, Номер unknown
Опубликована: Янв. 15, 2025
Biodiesel is considered to be an economical and eco-friendly substitute fossil fuels. The present research was focused on the synthesis of potassium doped biochar catalyst from wood dust waste. synthesized activated subjected characterization using various techniques such as FT-IR, SEM-EDAX, XRD analysis which showed possible higher catalytic efficiency. microalgae Chlorella vulgaris oil used for biodiesel production through transesterification reaction catalyst. parameters were optimized statistical methods conditions found 5.46% dosage, 10.39:1 methanol algal ratio, 61.41 °C temperature 75.3 min time with highest yield 91.9%. kinetics studied it follow first-order activation energy 12.18 KJ/mol. reusability study exhibited performance until fourth cycle. Overall, utilization a biofuel source industrial waste contributes sustainable promotes greener environment by reducing dependency fuels minimizing
Язык: Английский
Процитировано
1
Process Safety and Environmental Protection, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Elsevier eBooks, Год журнала: 2025, Номер unknown, С. 139 - 190
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Energy & Environment, Год журнала: 2024, Номер unknown
Опубликована: Март 28, 2024
The present research was mainly focused on the production of biodiesel from Annona squamosa oil using a synthesized Ni-doped CaO nanocatalyst. optimization transesterification reaction parameters studied through response surface methodology. highest yield 99.1% achieved with optimized conditions 7.86% catalyst concentration, 442 RPM, 15.19:1 molar ratio methanol to oil, temperature 55.8°C and time 63.3 min. results obtained kinetics study showed good fit first-order kinetic model. activation energy R 2 value were determined be 53.7 kJ/mol 0.90, respectively. nanocatalyst characterized Scanning Electron Microscope Energy Dispersive X-ray Spectroscopy which confirms presence nickel, calcium oxygen. Also, average size found 48.79 nm. Fourier Transform–Infrared occurrence functional groups such as C-H C = O bonds in fatty acid methyl esters produced analyzed Gas Chromatography-Mass Spectrometry analysis. current provides possibility insights for sustainable greener environment.
Язык: Английский
Процитировано
2
Industrial Crops and Products, Год журнала: 2024, Номер 224, С. 120282 - 120282
Опубликована: Дек. 13, 2024
Язык: Английский
Процитировано
2
Cleaner Materials, Год журнала: 2024, Номер 11, С. 100235 - 100235
Опубликована: Март 1, 2024
Oil spills represent a critical environmental threat, particularly to marine ecosystems, necessitating the development of efficient and eco-friendly remediation technologies. This study explores application pulsed laser ablation (PLA) in fabricating polymer-based magnetic nanocomposites, with focus on polyvinylpyrrolidone, chitosan, methyl cellulose. These polymers, renowned for their proficiency adsorbing pollutants from various oils, were combined magnetite nanoparticles (NPs) compressed tablet form. The PLA process facilitated generation which subsequently collected using an external field. chemical composition these composites was analyzed through Fourier-transform infrared (FTIR) Raman spectroscopy, while particle sizes determined Leica Image Processing Analysis System. revealed that is green, single-step, effective technique preparing producing particles predominantly 400 nm–4 µm size range. Furthermore, oil/water separation demonstrated commencing approximately 1 s after findings underscore potential crafting nanocomposites rapid environmentally sustainable oil spills.
Язык: Английский
Процитировано
1
Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 321 - 342
Опубликована: Ноя. 29, 2024
Язык: Английский
Процитировано
0