Chemical characterization of naturally weathered oil residues in arid terrestrial environment in Al-Alamein, Egypt

摘要

The main objective of this study was to investigate compositional changes in a range of source-and weathering-dependent molecular parameters in oil residues in the arid terrestrial environment of Al-Alamein, Egypt. The results of aromatic hydrocarbon analysis demonstrated the stability of several aromatic hydrocarbon ratios in oil residues over a wide range of weathering and hydrocarbon concentrations. The ratios of C2-dibenzothiophenes/ C2 -phenanthrenes (C2-DBTs/C2-PHENs), C3-dibenzothiophenes/C3-phenanthrenes (C3-DBTs/C3-PHENs), C2-chrysenes/C1-chrysene (C2-CHRYs/C1-CHRYs), and C2-dibenzothiophenes/C1-dibenzothiophenes (C2- DBTS/C1-DBTS) were nearly constant in oil residues of varying degrees of weathering.