Notice of RetractionThe Changes of Crude Oil during Evaporation Process in Environment

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

Evaporation is one of the significant weathering processes that act on the spilled oils in the environment and modifying the compositions of oil. As the physical and chemical compositional changes in spilled oil is essential for a full understanding the end fate and the behavior of oil in the environment. The evaporation test of Daqing crude oil was carried out in laboratory at 25°C, and the physical and chemical properties of crude oil were determined during the test. The results indicated that the evaporation progress decreases the API gravity (American Petroleum Institute Gravity), and increase the density and viscosity of crude oil. The chemical composition of crude oil was quantified in this study during the evaporation test. It indicated that all of the C6 and C 7 compositions have been completely lost at the end of the evaporation test and the compositions of those larger than CIO were less decrease during the evaporation test.