石油馏分实沸点蒸馏曲线与恩氏蒸馏曲线关系的新数学模型  

New Mathematical Model for True Boiling Point Distillation and ASTM Distillation Curve of Petroleum Fractions

作　　者：刘文静[1] 仇汝臣[1] 方晨昭[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2006年第4期304-308,共5页Journal of Qingdao University of Science and Technology:Natural Science Edition

摘　　要：用多种数学模型对恩氏蒸馏曲线与实沸点蒸馏曲线各段温差关系图和50%馏出温度的关系图进行拟合,经分析比较,提出了可用于计算机计算的新数学模型,并进行了公式系数估算和误差分析。模型回归的平均相对误差最小为0.275 864%,最大为4.820 747%。结果表明:新数学模型的计算结果与该曲线给出的数值吻合较好,计算准确度较高,且计算精度明显优于文献模型。New mathematical model for True boiling point distillation and ASTM distillation curve of petroleum fractions was proposed by analyzing and comparing with various mathematical models, which can be applied to numerical simulation. The coefficients can be calculated and error estimates obtained. The minimum error was 0. 275 864 percent and maximum error was 4. 820 747 percent. It showed that the results calculated by the mathematical model accorded with those obtained from this curve. And the errors were much less than the model of literature.

关 键 词：石油馏分 恩氏蒸馏 实沸点蒸馏 数学模型 

分 类 号：TE622.5[石油与天然气工程—油气加工工程]