Potential valorization of waste cooking oils into sustainable bio-lubricants
نویسندگان
چکیده
This work explores the feasibility of using waste cooking oils (WCO) as eco-lubricants. Five WCO from different food facilities were studied. Three them fractionated into both lighter and heavier fractions by molecular distillation. A comprehensive chemical characterization (fatty acids distribution, polar compounds acidity) was carried out on all WCOs their fractions, which led to set relationships with oils’ properties (such viscosity index, low temperature viscous flow behavior, oxidation resistance, etc.). It is worth mentioning high index values found in total acidity level, well benefit had fluidity at lubricity. Moreover, it also noteworthy that merely constituted free fatty (FFA), presented an improved oxidative resistance. The largest OOT enhancement, 12.4%, for light fraction a non-segregated oil. better thermal stability shown fractions. Finally, exhibited enhanced friction-reducing capability compared parent WCO. oil, fast restaurant oil deep-fried establishment yielded wear reductions 11.7%, 44.3% 36.8%, respectively. Therefore, distillation has been proved be key strategy obtain more efficient liquid
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ژورنال
عنوان ژورنال: Industrial Crops and Products
سال: 2022
ISSN: ['1872-633X', '0926-6690']
DOI: https://doi.org/10.1016/j.indcrop.2022.115109