Method calculates crude cut properties

01/07/2008
An investigation of 28 crude samples from Russia, FSU countries, the Middle East, North Africa, and Bulgaria showed that the crude true boiling point (TBP), or ASTM D-86 distillation, density, and sulfur content, along with the Riazi’s property distribution model and known correlations, can determine the physical and chemical properties of each 1% narrow cut of the crude. The samples have densities (d420) of 0.792-0.938 and sulfur contents of 0.04-3.90%.Crude costs, which account for about 80% of refinery expenditures, is the single most important determinant for the profitability of an oil company.1 The quality and value of a crude oil depends on its TBP curve—which consists o...
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