Publications Internationales
Permanent URI for this collectionhttps://dspace.univ-boumerdes.dz/handle/123456789/13
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Item Inhibition of asphaltene flocculation in light crude oil: effect of pressure, temperature and inhibitor concentration(Taylor and Francis Online, 2018) Gharbi, Kheira; Benyounes, Khaled; Benamara, ChahrazedIn this study, a light crude oil sample was taken from Hassi Messaoud field to characterize its physicochemical properties. The asphaltene flocculation onset was determined in the dead oil by Flocculation Titrimeter equipment. The petroleum resins have been extracted from the same crude oil and tested as an inhibitor of asphaltene flocculation then their efficiency has been studied at different conditions of pressure and temperature. The results point out that the extracted resins may have two different effects on the onset point depending upon the operator conditions and the concentration of the added resins to crude oil.Item Novel biocomposites based on sunflower oil and alfa fibers as renewable resources(Springer, 2018) Kadem, Sihem; Irinislimane, Ratiba; Belhaneche-Bensemra, NaimaItem Novel biocomposites based on sunflower oil and alfa fibers as renewable resources(Springer, 2018) Kadem, Sihem; Irinislimane, Ratiba; Belhaneche-Bensemra, NaimaItem Utilization of Hydrophilic/Hydrophobic hyperbranched poly(amidoamine)s as additives for melamine urea formaldehyde adhesives(Wiley, 2015) Amirou, Siham; Zhang, Jizhi; Essawy, H. A.; Pizzi, A.; Zerizer, A.; Li, J.; Delmotte, L.Item Effect of the aggressive environment on the damage of a glass polyester composite developed by hand layup process(Hindawi Publishing Corporation, 2015) Belloul, Nabila; Hamadache, Hassiba; Benyahia, Ali Ahmed; Serier, AichaThis work treats the behavior of a glass fibre/unsaturated polyester (UP) composite with structural deffects subjected to the attack of two corrosive solutions: H2SO4 and NaOH. The gravimetric analysis, the uptake mass of the resin, and the interfaces in the composite are established according to the proportion of the matrix/composite. The obtained results showed that, in the acidic solution, the glass fibre and the fibre/matrix interface absorption share is more significant than the alkaline solution. While the Fourier transform infrared analysis (FT-IR) of the UP resin revealed the presence of chemical degradation phenomenon (hydrolysis), the fibre corrosion was characterized by the atomic absorption analysis (AAS). The fibres/matrix interfaces degradation was confrmed by microscopic observations (SEM). The difusion kinetics of the both acid and alkaline solutions and chemical and mechanical degradation are afected by the presence of the pores in elaborated material