A STUDY ON APPLICATION OF GELPERMEATION CHROMATOGRAPHY FOR DETERMINATION OF MOLECULAR MASS DISTRIBUTION OF CRUDE OIL

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MODARES H.; FAZLALI A.R.

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Journal: AMIRKABIR Year:2000 | Volume:11 | Issue:44 Page(s): 494-507

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Title

A STUDY ON APPLICATION OF GELPERMEATION CHROMATOGRAPHY FOR DETERMINATION OF MOLECULAR MASS DISTRIBUTION OF CRUDE OIL

Author(s)

MODARES H. | FAZLALI A.R. | Issue Writer Certificate

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Abstract

Molecular mass of asphaltenes in petroleum fluids is one of important parameters to study and modeling of heavy organic depositions in petroleum fluids processing. Molecular mass of asphaltenes are measured by the same methods used for molecular mass determination of polymer compounds. In this work, size exclusion chromatography methods, which are used broadly for molecular mass measurements of asphaltenes, are described and the main factor involved in obtaining undesirable results due to observation of very low molecular mass in the measured molecular mass distribution are discussed and attributed to high polarity of asphaltenes particles and mechanism of SEC methods. A new method for correction of measured data for these undesirable effects is presented. This method is based on finding a new calibration curve (correlation) for molecular mass measurement by SEC. The experimental data of some asphaltenes samples deposited from four Iranian crude oils have been corrected. The corrected results show the effectiveness of required modification in molecular mass distribution of asphaltenes.

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APA: Copy

MODARES, H., & FAZLALI, A.R.. (2000). A STUDY ON APPLICATION OF GELPERMEATION CHROMATOGRAPHY FOR DETERMINATION OF MOLECULAR MASS DISTRIBUTION OF CRUDE OIL. AMIRKABIR, 11(44), 494-507. SID. https://sid.ir/paper/1064/en

Vancouver: Copy

MODARES H., FAZLALI A.R.. A STUDY ON APPLICATION OF GELPERMEATION CHROMATOGRAPHY FOR DETERMINATION OF MOLECULAR MASS DISTRIBUTION OF CRUDE OIL. AMIRKABIR[Internet]. 2000;11(44):494-507. Available from: https://sid.ir/paper/1064/en

IEEE: Copy

H. MODARES, and A.R. FAZLALI, “A STUDY ON APPLICATION OF GELPERMEATION CHROMATOGRAPHY FOR DETERMINATION OF MOLECULAR MASS DISTRIBUTION OF CRUDE OIL,” AMIRKABIR, vol. 11, no. 44, pp. 494–507, 2000, [Online]. Available: https://sid.ir/paper/1064/en

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