کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
207118 | 461207 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of aromatics and iso-alkanes on the pour point of different types of lube oils Effect of aromatics and iso-alkanes on the pour point of different types of lube oils](/preview/png/207118.png)
In this work, we have studied the quantitative composition of seven lube oils obtained from different refineries by Nuclear Magnetic Resonance (NMR) spectroscopy and Gas Chromatography (GC) methods. A trend of low temperature flow behavior of these lube oils has been correlated with the composition, i.e. n-alkane, iso-alkanes and aromatics. The pour point of these lube oils does not depend only on distribution of n-alkanes, rather with quantity and types of other molecules like iso-alkanes and aromatics. Two alkylacrylate co-polymers with different mole fractions of co-monomers synthesized by free radical mechanism are used as pour point depressant (PPD) additives. Effectiveness of additive is dependent on polar aromatic type molecules along with iso-alkane type molecules in lube oil.
Journal: Fuel - Volume 88, Issue 9, September 2009, Pages 1629–1633