Search results for "öljytuotteet"

Epäterve kilpailu : käsiteanalyyttinen tutkimus ilmiöstä ja sen esiintymisestä huoltoasema-alalla vuosina 1984-2006

2007

Mass spectrometric analysis of heavy and base oils

2018

Base oil production from crude oil has become more complex as demanded product properties, yield objective and field competition have increased interest in research towards high viscosity index (VI) base oils. Conventional lubricant grade base oil enjoyed biggest market share until 2000-2004 but now high VHVI product demands have introduced also novel production methods for heavy-type base oils such as Ficsher-Tropsch method based gas-to-liquid (GTL) and poly-internal-olefin (PIO) base oils. In this MSc, different mass spectrometric methods for heavy and base oils where compared and in-house field ionization method was characterized and method validation was begun. Base oil mass analytics u…