摘要
催化裂化装置原料的折射率能够反映原料的结构特征,对于判断原料特性具有重要意义。文中采集了63套催化裂化装置的原料样品并对其性质进行了分析。建立了原料折射率(70℃)与相对密度、残炭值和10%馏出温度的关联式。根据折射率与温度的关系计算出20℃时原料的折射率。折射率关联式的计算结果与分析值之间的最大相对误差为0.2433%,表明关联式的模拟精度较好。
The refractive index of FCCU feedstocks can reflect its structural features and has significant meaning for verifying feedstock property.Feedstock samples from 63 FCC units were collected and their features were analyzed completely.A correlation of the refractive index at 70 ℃ with relative density,carbon residue and distiloff temperature at distiloff volume of 10% was established and then the refractive index at 20 ℃ was determined.The maximum relative error between calculation result and assay values was 0.243 3%.Thus the correlation had good simulation accuracy.
出处
《炼油与化工》
2013年第2期17-19,60,共3页
Refining And Chemical Industry
基金
国家科技支撑项目:2008BAF33B02
关键词
催化裂化
折射率
相对密度
残炭
catalytic cracking
refractive index
correlation
relative density
carbon residue
distiloff temperature
