石油馏分特性参数经验公式准确性的考核与对比

EXAMINATION AND CONTRAST OF THE EMPIRICAL CORRELATIONS OF PETROLEUM FRACTION CHARACTERISTIC PARAMETERS

通过考核石油馏分特性参数经验关联式的准确性，求出了衡量经验关联式准确性的误差；经过分析，得出了各关联式准确性的次序，同时也对这些关联式求取石油馏分特征多数时的个别问题进行了讨论。

In order to examine the accuracy of empirical correlations of petroleum fraction charac-teristic parameters.the errors governing the accuracy of the selected correlations were calcu-lated.er-rors.Among the correlations,the best one is Riazi methed, which is accurate,simple andconvenient.The next are Kesler Lee methdandFW-Watson method. Meanwhile,someproblems of these correlations existing in the calculation of petroleum fraction characteristicparameters were discussed。