常压重油气液平衡的测定与关联  

MEASUREMENT AND PREDICTION OF VAPOR LIQUID EQUILIBRIUM FOR HEAVY OILS

作　　者：张艳梅[1] 鄂红[1] 陈泽辉 寿德清 

机构地区：[1]石油大学

出　　处：《石油炼制与化工》1998年第1期55-59,共5页Petroleum Processing and Petrochemicals

摘　　要：在胜利、辽河及新疆九区原油常压重油气液平衡实测数据的基础上，采用逐步回归的方法，得到适用于以上三种原油常压重油气液相平衡常数Ｋｉ计算的经验关联式，并通过平衡闪蒸计算进行考察，计算结果：平衡闪蒸温度预测的平均绝对偏差和相对偏差分别为５．６４Ｋ和０．９０％，闪蒸气化率的平均绝对偏差和相对偏差分别为２．１２％和１０．９０％。大大优于ＳＲＫ方程预测的结果。Based on the experimental vapor liquid equilibrium data of Shengli, Liaohe and Xinjiang atmospheric residues, an empirical correlation equation for estimating the equilibrium constants K for these oils was obtained by regression. In comparison with the equilibrium flash temperatures, the average absolute deviations and relative deviations were 5.64 K and 2.12% respectively; the average absolute deviations and relative deviations of the flashing vaporized portions were 0.90% and 10.90% respectively, which were better than the calculation results by SRK equation.

关 键 词：气-液平衡 数据关联 预测 闪蒸 常压重油 蒸馏 

分 类 号：TE624.2[石油与天然气工程—油气加工工程]