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Theses

Valorisation non alimentaire des huiles de friture usagées en tant que biolubrifiants

Abstract : The applied research project focused on the valuation of used frying oils as bio-lubricant for chainsaw. Those collected in the various restaurant chains oils have a high content of polar compounds , high acidity , a great variability in their composition , fatty acids on different brands of vegetable oils . These mixtures of vegetable oils (rapeseed, sunflower , peanut, palm , coconut ) , already valued in the biofuels , have interesting physicochemical properties ( viscosity , biodegradability , fatty acid composition ) that would allow them to compete with lubricants mineral or vegetable that is found on the market, particularly in the forestry sector origin . A method of ceramic membrane ultrafiltration has reduced content of polar compounds and the subsequent acidity of the deep frying process , while reducing the clogging phenomenon . The use of response surface methodology has helped to optimize the parameters of temperature, pressure, porous membranes, to improve filtration rates . The formulation of this biolubricant from the mixture of oils obtained optimized plan mixtures led to the production of a product of ISO 150 grade which features " spinning ", " stickiness " and " pour point " meet the specifications . A study of biodegradability according to OECD 301B showed that formulated oil is 90% biodegradable , low toxicity tests according to OECD 201, 202, 203, and does not show allergenicity
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https://hal.univ-lorraine.fr/tel-01750655
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Submitted on : Friday, December 11, 2020 - 9:15:59 AM
Last modification on : Thursday, January 7, 2021 - 3:43:37 PM

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  • HAL Id : tel-01750655, version 1

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Ange-Godefroy Essono Abaga. Valorisation non alimentaire des huiles de friture usagées en tant que biolubrifiants. Alimentation et Nutrition. Université de Lorraine, 2013. Français. ⟨NNT : 2013LORR0313⟩. ⟨tel-01750655⟩

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