| Autor: |
Nedelchev, Angel, Stratiev, Dicho, Ivanov, Atanas, Stoilov, Georgy |
| Předmět: |
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| Zdroj: |
Petroleum & Coal; 2011, Vol. 53 Issue 4, p275-290, 16p, 12 Charts, 4 Graphs |
| Abstrakt: |
The True Boiling Point (TBP) analysis according to ASTM D-2892 standard is the single reliable tool for characterization of crude oil and petroleum mixtures in terms of their boiling point distribution. However, the analytical procedure is expensive and time consuming, which is inappropriate for quick estimation of crude oil distillation characteristics. Thirty three crude oil samples were characterized by means of TBP distillation and ASTM D-86. This paper presents an attempt to test the applicability of the major methods available in the open literature for converting ASTM D-86 to TBP for the whole range of the distillation curve. The whole distillation curve was obtained by using the Riazi's distribution model ((Ti-To)/To=[?T/?T.Ln( 1/(1-xi))]1/BT), which demonstrated high accuracy with r2 ≥ 0.99. All methods demonstrated lower accuracy in converting the ASTM D-86 into TBP than the reproducibility of the ASTM D-2892. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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