Mr. Riazi, A CONTINUOUS MODEL FOR C7+ FRACTION CHARACTERIZATION OF PETROLEUM FLUIDS, Industrial & engineering chemistry research, 36(10), 1997, pp. 4299-4307
In this paper, based on a two-parameter distribution model, a method i
s presented to predict complete property distributions for molecular w
eight, boiling point, specific gravity, and refractive index of a C7fraction. Only three mixture bulk properties such as molecular weight,
specific gravity, and refractive index are needed for this technique.
If a distillation (TBP) analysis for the fraction is available, then
only two bulk properties such as molecular weight and specific gravity
(or refractive index) are sufficient. Predicted distributions for var
ious properties are compared with experimental data of some 48 crude s
amples. The method is also applied for flash vaporization of a Russian
crude oil, and predicted distributions for feed, vapor, and liquid st
reams are compared with actual data. Splitting and lumping schemes of
petroleum fractions using the proposed distribution model are also pre
sented by two different aproaches with detailed computational procedur
es.