Title: Weathering simulated experiment of n-alkanes of crude oil spilled in seawater and sand
Abstract: According to the specifications for the identification system of spilled oil on the sea(GB/T 21247-2007),the light weathering pattern of n-alkanes of crude oil spills was investigated using GC-MS in seawater and sand simulated weathering experiment.The results showed that the low molecular weight n-alkanes were lost,and the weathering ratio of n-alkanes in seawater simulated weathering was lower than in sand.The n-C9,n-C10,n-C11 and n-C12 disappeared in two weeks in the sand simulated weathering experiment,but in the sea water simulated weathering experiment,only n-C9 and n-C10 disappeared.The diagnostic ratios of An-C17/APr and An-C18/APh were relatively stable during the simulated weathering experiment,so they can be used for the oil sources identification in Xiamen area.The diagnostic ratio of APr/APh cannot be used for the identification of oil sources because in the later period of the one-month sand simulated weathering,the ratio changed significantly.The concentration of n-C13-n-C29 in seawater increased at the end of seawater simulated weathering experiment by 2.9%~327.4%.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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