摘要
借助实沸点蒸馏装置 ,将焦化蜡油分成九个窄馏分 ,分别测定了原料油和其窄馏分的性质。采用n -d -M法计算了窄馏分及原料油的结构族组成 (CA 和RA) ,考察窄馏分的相对密度、分子质量、折射率和残炭及芳碳率、芳环数等随苯胺点的变化规律 ,建立了利用苯胺点预测焦化蜡油物性及部分结构参数的经验关联式 ,用于原料油 (焦化蜡油 )的计算 ,除分子质量和芳环数 (RA)偏差较大外 ,其余预测结果能满足精度要求。其中利用苯胺点预测相对密度和折射率的平均相对误差小于 0 .8% ,残炭预测值平均相对误差小于 2 .8% ,表明该关联式具有一定的实用价值。
Coker gatch was separated to nine narrow fractions by TPB distillation unit. The refractive index, density, average molecular weight and carbon residue of coker gatch and its narrow fractions were determined respectively. The structural group compositions (CA and RA) of the coker gatch and its narrow fractions were calculated using the n-d-M method. The relationships of relative density, average molecular, refractive index, carbon residue, CA and RA of the narrow fractions with an.pt were investigated. The correlative equations for predicting these abovementioned properties and partial structural parameters were established, which meet the requirements of precision except molecular weight and RA. The average relative error in predicting relative density and refractive index is smaller than 0.8%, and in carbon residue is lower than 2.8%, which illustrates that these correlation equations are practical.
出处
《抚顺石油学院学报》
EI
2001年第3期10-13,共4页
Journal of Fushun Petroleum Institute
基金
中国石化集团公司资助课题 (课题编号 :1 95 0 0 3 )
关键词
焦化蜡油
苯胺点
相对密度
折射率
分子质量
残炭
结构参数
预测
Coker gatch
An.pt
Relative density
Refractive index
Average molecular
Carbon residue
Tructural parameter
Prediction
