Naslov
Impact of water quality on the water separability of industrial oils

Autori
Lovrić, Mario ; Grafl, Alexander ; Berger, Beate, Ostrowski, Jens ; Adam, Karl

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, ostalo

Izvornik
MATRIB 2013 / Alar, Željko ; Jakovljević, Suzana ; Šolić, Sanja - Vela Luka, 2013, 225-260

ISBN
978-953-7040-20-8

Skup
MATRIB 2013

Mjesto i datum
Vela Luka, Hrvatska, 27.06.2013. - 29.06.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
industrial oil ; demulsification ; water separability

Sažetak
Rapid water separation is one key feature of functionality of industrial oils. The standardised laboratory water separability test DIN ISO 6614 applies distilled water. But in industrial facilities, different qualities of process waters are used, which contain various amounts of contaminations, in particular inorganic salts. As expected, experiments with such water qualities have shown significant differences between the separability of deionised and process waters. Moreover, the capability of water separability is even more complex when different oil types have to be considered. For this reason, the scope of this work was the systematic approach to determine the impact of typical water contaminations on water separability of different oil types. The oils selected for the experiments were circulation oils. The water parameters comprised the variation of pH‐value, salt chemistry and concentrations as well as the amounts of insoluble particle contamination. The results obtained from the model waters were compared with deionised water and process water from a production site by water separation and chemical analysis. The findings indicate important influencing factors that affect the stability of the oil‐water interface and thereby water separability. The salt content as single parameter is not the key factor for real water simulation. However, the pH‐value as well as presence of particles in the emulsion turned out to affect the water separability. Furthermore, the results allow the systematic description of the individual influencing factors on different oil types. Certain combinations of water parameters enable the simulation of some of the process water results. The study has clearly shown that a reliable reproduction of real water conditions in the laboratory requires in‐depth knowledge of the composition of process waters.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

POVEZANOST RADA