Overview of thermal and analytical characterization techniques for biofuels and its blends

Journal of Thermal Analysis and Calorimetry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Язык: Английский

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Phytochemical screening, elemental analysis and physicochemical properties of the oil from Bauhinia variegata seeds

Natural Product Research, Год журнала: 2025, Номер unknown, С. 1 - 11

Опубликована: Март 7, 2025

Plants have served as the foundation of traditional medicine since earliest civilisations. In light this, it is crucial to study phytochemical and physicochemical properties Bauhinia variegata seed oil discover novel secondary metabolites. Seed extracts were obtained through successive Soxhlet extraction using methanol petroleum ether. The particle size 0.25 mm achieved highest bio-oil yield at 24.8%. was characterised various techniques, including FTIR, GC-MS, 1H & 13C NMR. Elemental analysis revealed presence Pd (0.03 ± 0.01 ppm), Cd (0.003 0.007 Cr (0.02 0.05 Zn 0.008 Mg (0.04 ppm) Na (0.45 ppm). further analysed for basic properties, compounds, revealing alkaloids, glycosides, carbohydrates, phenolics, tannins, saponins, flavonoids terpenoids. highlights biomedical, biodiesel industrial applications bio-oil.

Язык: Английский

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Boosting wet yeast-based biodiesel production by in-situ transesterification using a novel acid-base bifunctional carbon-based catalyst derived from spent coffee ground and cement residue

Renewable Energy, Год журнала: 2025, Номер unknown, С. 122341 - 122341

Опубликована: Янв. 1, 2025

Язык: Английский

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A systematic review on the production of biodiesel using various feedstocks and effective catalysts

Petroleum Science and Technology, Год журнала: 2024, Номер unknown, С. 1 - 17

Опубликована: Июнь 19, 2024

Amidst concerns over food scarcity and rising fuel costs, researchers are actively exploring non-edible feedstocks for biodiesel production to alleviate competition with resources. Biodiesel, characterized by its renewability, low toxicity, eco-friendliness, offers significant advantages conventional diesel fuel. This study delves into the technical intricacies of methodologies, primarily utilizing trans-esterification technique. Various biomass sources react monohydric alcohols catalysts, including nano-based, homogeneous heterogeneous, biocatalyst options. The synthesis process is dependent on critical factors like free-fatty acid content, ethanol type molar proportion oil, catalysts concentration, reaction duration temperature. Selecting suitable significantly influences economic analysis. systematic review aims comprehensively analyze recent advancements in production, a focus diverse feedstocks, effective utilized novel current research focusing catalysts. By employing rigorous methodology, this paper provides unique insights emerging trends opportunities future research. comprehensive overview guides researchers, industry professionals, policymakers toward optimizing processes, thereby driving innovation sustainable clean energy solutions.

Язык: Английский

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Facile Synthesis of Silver‐Exchanged Phosphotungstic Acid Immobilized on Sn‐Bi Bimetallic Metal–Organic Frameworks for Enhanced Esterification

Applied Organometallic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

ABSTRACT Metal–organic frameworks (MOFs) are ideal supports for the synthesis of porous composite catalysts. In present study, Sn‐Bi bimetallic metal–organic (Sn‐Bi‐MOFs) supported silver‐doped phosphotungstic acid (AgPW) catalysts (AgPW@Sn‐Bi‐BDC and AgPW@Sn‐Bi‐BDC (NH 2 )) were successfully synthesized via a simple in situ impregnation method, which was subsequently applied to catalyze esterification production biodiesel from oleic (OA). The physico‐chemical properties prepared underwent comprehensive analysis through XRD, FTIR, N physisorption, SEM, EDX, NH 3 ‐TPD, Py‐FTIR, TG, XPS techniques, confirming successful AgPW on Sn‐Bi‐MOFs framework. Among tested, ) exhibited better catalytic activity than that Sn‐Bi‐BDC, Sn‐Bi‐BDC ), AgPW@Sn‐Bi‐BDC, reaching 91.6% OA conversion with methanol:OA molar ratio 20:1 catalyst quantity 0.2 g at 130°C 4 h. high is attributed available multiscale pore structure, acidity, synergistic action Brønsted Lewis acidic sites. Additionally, followed first‐order reaction kinetic model, an E 34.5 kJ/mol. Moreover, recyclability composites also assessed, demonstrating sustained after four reuses. This approach showed potential sustainable efficient energy MOFs‐based

Язык: Английский

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Visual research on spray and low temperature combustion of biodiesel/ethanol/water micro-emulsified fuels

Energy Conversion and Management, Год журнала: 2024, Номер 325, С. 119347 - 119347

Опубликована: Дек. 2, 2024

Язык: Английский

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Adjustable Brønsted type ionic liquid catalyst based on porous cellulose microspheres for green and efficient catalytic system in transesterification

Fuel, Год журнала: 2025, Номер 394, С. 135190 - 135190

Опубликована: Март 25, 2025

Язык: Английский

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Sustainable synthesis of shea butter-derived bio-lubricants: A green alternative to mineral oils

Next Sustainability, Год журнала: 2025, Номер 5, С. 100128 - 100128

Опубликована: Янв. 1, 2025

Язык: Английский

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Structural Engineering of Ti3C2-TiO2 Nanoflowers Modified with Oxygen Vacancy for Photocatalytic Applications

Renewable Energy, Год журнала: 2025, Номер unknown, С. 123134 - 123134

Опубликована: Апрель 1, 2025

Язык: Английский

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Transformation of waste cooking oil into biodiesel in a microwave reactor using nickel-loaded graphitic biochar catalyst

Fuel, Год журнала: 2025, Номер 397, С. 135369 - 135369

Опубликована: Апрель 18, 2025

Язык: Английский

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