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Simulated distillation is a Gas Chromatography (GC) method used to characterise petroleum fractions and products based on their boiling point. One of the most widely used analysis techniques in the petrochemical industry is Simulated Distillation. With the SimDist analysis, the hydrocarbons are separated in order of boiling point.

Why simulated distillation?
An analysis of petroleum fractions is a fast-reliable analytical way for the determination of boiling points, as well as to perform checks against the conventional distillations that are widely used in refineries. This information can be to help determine the most efficient way to control and regulate the distillation process.

 


Knowledge of the boiling range of petroleum products is essential for:

  • Quality assurance;
  • Boiling point distribution data is an important specification when characterising petroleum products;
  • Control of refining processes;
  • Predicting physical and chemical properties;
  • Compliance with the environmental laws.

Routine distillation tests are used to determine the boiling range. There are various standardised applications for SimDist. The following applications are supported by SimDist: 

Application

Objective

Boiling point [°C]

ASTM D2887

Gasoil and Jet Fuel

36-538

ASTM D6352

Lub Oils, Base Stock

174-700

ASTM D7169

Crude Oil and Residual Sample

36-720

ASTM D7500

Lub Oils and Not Residual Samples

100-735

EN15199-1

Not Residual Samples

100-750

EN15199-2

Residual Sample

100-750

EN15199-3/IP545

Crude Oil

36-750

Figure. 1 Overlay of chromatograms from a qualitative mixture of normal paraffins and a reference gas oil, comparing their boiling point distribution.

 
A complete simulated distillation analysis can be performed in 40 minutes and provides an accurate calculation of the true boiling point data - of all the petroleum products.


More information
Our experts are happy to provide you with more information about the SimDist analysis. Please contact them via e-mail or by phone via 31 (0) 88 214 3340.