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本文提出了高沸点石油馏分物性计算的真组方法,即采用正构烷烃的常压沸点数据切割油品的实沸点蒸馏曲线,切割出的窄馏分当作相同沸点的正构烷烃处理,其物性数据均采用正构烷烃确定的物性数据。该法适用范围较一般拟组分法宽,尤其适合减压塔高沸点油品的物性计算。通过采用真组分法和拟组分法对高沸点石油馏分物性和实际生产中减压塔的计算结果表明,真组分法优于拟组分法,可推荐用于工业装置的设计。
In this paper, the real group method for calculating the physical properties of high-boiling petroleum fractions is proposed, that is, the normal boiling point data of n-paraffin is used to cut the solid boiling point distillation curve of the oil product. The narrow cut fraction is treated as normal paraffin with the same boiling point. Data are used n-alkanes to determine the physical properties of data. The scope of application of the law than the general quasi-component method width, especially for vacuum tower high boiling point oil properties calculation. Through the use of the true component method and the quasi-component method of high boiling point petroleum distillate physical properties and the actual production of vacuum tower calculation results show that the true component method is better than the quasi-component method can be recommended for the design of industrial installations.