新疆原油馏分油表面张力的实验测定与预测方法  

Measurement and Predicting Methods of Surface Tension of Xinjiang Oil Fractions

作　　者：张艳梅[1] 王从岗[1] 

机构地区：[1]石油大学(华东)化学化工学院,东营257062

出　　处：《计算机与应用化学》2001年第4期376-379,共4页Computers and Applied Chemistry

摘　　要：实测新疆原油 18个宽、窄馏分油不同温度下的表面张力 10 2组 ,在所得数据的基础上 ,采用逐步回归方法处理实验数据 ,得到计算石油馏分表面张力的计算式 2个 ,其平均绝对偏差分别为 0 41× 10 -3N/m和 0 32×10 -3N/m ,,平均相对偏差分别为 1 82 %和 1 39%。考察两种常用计算方法对新疆油表面张力计算的适用性 ,其平均相对偏差分别为 15 6 %和 2 4 4%。通过对这两种方法进行修正 ,平均相对偏差分别降到 1 2 9%和 1 97% 。Surface tension data of Xinjiang oil fractions are measured under different temperatures. On the basis of the obtained data, emperical correlations are provided. The average absolute errors are 0 41×10 -3 N/m and 0 32×10 -3 N/m respectively and the average relative errors are 1 82% and 1 39%. All methods are applicable in the process calculation. Two models that we usually use are checked for Xinjiang oil fractions and the average relative errors of them are 15 6% and 24 4% respectively.Then the two models are modified,and the average relative errors are 1 29% and 1 97%.

关 键 词：石油馏分 表面张力 逐步回归 实验测定 预测 石油 

分 类 号：TE622.5[石油与天然气工程—油气加工工程]