塔里木原油馏分油临界性质常用计算公式考察
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Abstract: Critical temperature and pressure of 24 wide and narrow fractions from Talimu crude were determined with the semi-sealed tube apparatus. Based on these experimental data, the applicability of six empirical correlations for calculating critical properties of Talimu oil fractions were investigated. The average relative error is 1.35%~2.09% for critical temperature and 7.06%~9.96% for critical pressure. Among these correlations, Sim-Daubert and Lee-Kesler correlations are better for critical temperature calculation and better result for critical pressure calculation was obtained by Sim-Daubert correlation, while others are not satisfactory.
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Key words:
- petroleum fraction /
- critical properties /
- correlations /
- examination
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