Study of Temperature and Solvent on Quality of Separation and Quantity of Asphaltene in Crude Oil Cuts

Abstract

One of the most important parameters which is used before refining and precepitating asphaltene is the investigation of the quantitation and precipitation process of asphaltene. As a matter of fact, the magority of heavy end distillates is related to asphaltene composition. In this article, the effects of different volumes of solvents such as n-pentane, n-hexane, and n-heptane on the precipitation of asphaltene at different temperatures were investigated. Standard deviations of n-heptane, n-hexane, and n-pentane in the separation of asphaltene at the boiling point and ambient temprature of solvent are (0.25, 0.99), (0.89, 1), and (0.92, 1.2) respectively.
 

Keywords

References

 
[1] Latif A. & Khalid A.Gh., Investigations into asphaltenes in heavy crude oil. I: effect of temperature on precipitation by alkane solvents”, fuel, Vol. 60, pp. 1043-1046, 1981.
[2] Speight J.G., “petroleum asphaltenes (Part 1) asphaltenes, resins and the structure of petroleum”, oil and gas science and technology RCV IFP., Vol. 59, No. 5, pp. 467-477, 2004.
[3] Colin J.M. & Voin G., “routine hydrocarbone group-type analysis in refinery laboratories by high performance liquid chromatography”, journal of chromatography, Vol. 280, pp. 152-158, 1983.
[4] Vazquez D. & mansori G.A., “Base on identification and measurment of petroleum precipitates”, J. petrol. Sci and engineering, Vol. 26, Nos. 1-4, pp. 49-56, 2000.
[5] Galle yos E.J., Green J.w. & lindeman L.P., “petroleum group-type analysis by high resolution mass spectrometry”, anal.chem., Vol. 39, No. 14, pp. 1833-1838, 1967.
[6] Middelton W.R., “gradient elution chromatography using ultraviolet monitors in the analytical, fractionation of  heavy petroleums, anal-chem, Vol. 39, No. 14, pp. 1839-1846, 1967.
 
Journal of Petroleum Research
Volume 17, Issue 56.1 - Serial Number 56
September and October 2007
Pages 79-83

Files

Share

How to cite

Statistics