News/Events

Asphaltene stability in crude oil by ASTM D7157 Procedure B

08/2023

Recently published ASTM D7157-23 “Determination of Intrinsic Stability of Asphaltene-Containing Residues, Heavy Fuel Oils, and Crude Oils” includes now Procedure B based on the SV10, the first fully automated S-value instrument developed by AD Systems under license TOTALEnergies RC.

The large ILS was conducted in 2022 to define the precision of the novel technique.There were 10 samples covering the scope of the ASTM D7157 standard method (residual distillates: atmospheric residues; vacuum residues; visbreaking residue; heavy fuels and crude oils). The samples set included all product types as per Table 1 . 9 laboratories from France and Europe participated in this study. 
The SV10 has demonstrated excellent repeatability and reproducibility, twice better than the legacy analyzer from ROFA France, while maintaining good correlation with historical numbers.

The intrinsic stability (S-value) is an indication of available solvency power of petroleum product, its ability to remain asphaltenes in a colloidal dispersion. The higher the S-value, the less risk of asphaltenes precipitation from the oil.

SV10 result screenBeyond the ASTM D7157 standard report (S-value, So, Sa), the SV10 calculates additional values as IN (Insolubility Number) and SBN (Solubility Blending Number), as well as the estimation of stability reserve and blending potential.
These values for crude oils or fuels give essential information for the assessment of their compatibility and blend stability while blended at different ratio.
The SV10 is the perfect analytical tool to increase efficiency of refining and blending operations.


AD Systems website en français !

08/2022

Are you french speaking ?    Visit our new website in French language to learn about our products, new developments, events and more ... in your native language. 

Venez découvrir notre nouveau site Web en langue française pour en savoir plus sur nos produits, nos nouveaux développements, nos événements et plus encore ... dans votre langue maternelle.

Venez découvrir notre site en français


New Generation of Smoke Point Testing

07/2020

The SP20 is the innovative solution for smoke point testing

AD Systems is proud to announce the launch of the state of the art SP20 for ASTM D1322

See benefits under Products\SP20