FINGERPRINTING OF EGYPTIAN ASPHALTENES USING X-RAY DIFFRACTION AND RAMAN SPECTROSCOPY
A, El-Feky, A. . 2015
Four Egyptian crude oil samples were collected from different oil fields located at Eastern and Western Deserts. Asphaltenes have been extracted and then characterized by X-ray diffraction and Raman spectroscopy. Different structural parameters were obtained from X-ray diffraction patterns and were compared with the Raman results. The Comparable results of both techniques indicated that
largest crystallite size and the smallest strains in directions perpendicular to (002) and (100) planes. These findings confirmed that El-Wahat crude oil is the youngest one among the other four studied crude oils. The influence of the different precipitating solvents on the asphaltenes has been studied. It was found that precipitating solvent has a great effect on the crystallinity of the studied samples; it was found that asphaltenes extracted by n-heptane is more crystalline than those extracted by n- pentane.
Abstract: The adsorption of a series of ethoxylated nonionic and anionic surfactant molecules at aqueous / air interface at different temperature ranges [298, 308, 318, 328 and…
Four Egyptian crude oil samples were collected from different oil fields located at Eastern and Western Deserts. Asphaltenes have been extracted and then characterized by X-ray diffraction and…