文献类型：期刊文献

中文题名：常见热力学模型对馏分油加压汽液平衡计算的适用性──孤岛、中原、克拉玛依原油

英文题名：Verification the Predication Accuracy of Usual Vapour-liquid Equilibrium(VLE)Modles──Gudao,Zhongyuan and Kelamayi Oils

作者：李少萍[1];张一安[1];文建发[1];银又新[1]

机构：[1]华东理工大学石油加工研究所

年份：1996

卷号：22

期号：3

起止页码：260

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：汽液平衡;石油;馏分;热力学模型;蒸馏

外文关键词：vapour-liquid equilibrium;equilibrium constant;petroleum distilate;phase equilibrium constant;Gudao-oil;Kelamayi oil;Zhongyuan oil

摘要：依据孤岛、中原、克拉玛依原油馏分油压力下（０．４９３～１．４７４ＭＰａ）２２８个窄馏分汽液相平衡常数，回归出Ｋ值关联式，该式对泡点温度预测的绝对平均偏差为４．７℃。根据实测数据，对常用热力学模型（ＳＲＫ、ＳＨＢＷＲ、ＣＳＧＳ）进行了适用性考察。结果表明，ＳＲＫ方程预测精度最高，其对温度预测的绝对平均偏差为８．６℃，对Ｋ值预测的平均绝对相对偏差为８．７％。
Presents a correlation equation of VLE constants(K_i)for 228 narrow fractions VLE contants under the pressure in the range of 0.473～1. 474kPa of Gudao,Zhongyuan and Kelamayi oils,The equations has the mean absolute deviation of 4.7℃for equilibrium temperature.Based on the experiment data,the ususal VLE modles which are concerned with Soave and SHBWR state equations,Grayson Streed and Chao-Seader general correlations are cheaked for mentioned oils.It is showed that Soave equation has the most accuracy than other modles.Soave equation has the absolute mean percentage deviation of 8.7%for K_i and has the mean absolute deviation of 8.6℃ for equilibrium temperature.