新疆原油馏分油表面张力的实验测定与预测方法

• 作 者: 张艳梅 王从岗
• 机 构: 石油大学(华东)化学化工学院!东营257062,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
• 发表日期: 2001年04期
• 关键词: 石油馏分 表面张力 逐步回归 考察 修正

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% ,其准确性与所得关联式相当

Based on the obtained data, the experimental data were processed by stepwise regression method, and two formulas for calculating the surface tension of petroleum fractions were obtained. The average absolute The deviations were 0 41 × 10 -3 N / m and 0 32 × 10 -3 N / m, respectively. The average relative deviations were 1 82% and 1 39% respectively. The applicability of two common calculation methods to calculate the surface tension of oil in Xinjiang was investigated. The average relative deviations were 15 6% and 24 4% respectively. By amending these two methods, the average relative deviations were reduced to 119 and 1 97%, respectively, with an accuracy comparable to that obtained