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Prediction of the Structural Group Compositions of Lube Base Oil
Author(s): 
Pages: 221-225
Year: Issue:  2
Journal: Petrochemical Technology

Keyword:  lube base oilstructural group compositioncharacterization factor;
Abstract: 测定了11种来自不同地区的润滑油基础油的部分物性(如碳氢原子比、密度、黏度、折光率、平均相对分子质量等),并对润滑油基础油的结构族组成用不同方法进行了分析.提出采用润滑油基础油的基本物性,通过模型的构建、模型表征因子及预测模型的确立来确定芳香碳率(CA)、环烷碳率(CN)和烷基碳率(CP)的预测模型方程式.用预测模型方程式计算了润滑油基础油的结构族组成,并与n-d-M法和改进B-L法的计算结果进行比较.分析实验数据发现,预测模型的结果优于n-d-M法的结果,与改进B-L法的结果接近,CA,CN,CP的最大偏差分别为3.96%,4.21%,3.79%.预测模型具有一定的应用价值.
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