摘要
本文测定了几种重质油的折光率、密度、平均分子量、元素分析和核磁共振氢谱数据,分别采用经典的n-d-M法和改进的B-L法计算其平均结构参数。结果表明,两种方法测得的结果基本相符;减压渣油和馏分油的芳碳率(C_A％)与氢碳原子比均具有良好的线性关系:C_A％=117.744—58.555(H/C);减压渣油的平均密度温度系数与其烷基碳率(C_P％)也具有较好的线性关系:y×10~4=—1.6564+0.1363(C_P％)。
In this paper, the refractive index, density, average molecular weight, ele- mental composition and ~1H-NMR spectra of several kinds of heavy oil were determined. The average structural parameters of every oil were calculated respectively by means of n-d-M method and the modified Brown-Ladner's method. The results show that the struc- tural parameters obtained with modified Brown-Ladner's method are very close to that by n-d-M method. The percent of carbon present in aromatic rings is linear with the atomic ratio of hydrogen to carbon (C_A%=117.744-58.555 (H/C)). The relationship between percent of carbon present in alkyl groups and the average density-temperature coefficent is also linear (γ×10~4=-1.6564+0.1363(C_P%)).
出处
《石油炼制》
CSCD
1993年第9期56-61,共6页
