The Impact of Basic Nitrogen Compounds on the Oxidative and Thermal Stability of Base Oils in Automotive and Industrial Applications

Paper #:
  • 981405

Published:
  • 1998-05-04
Citation:
Yoshida, T., Igarashi, J., Watanabe, H., Stipanovic, A. et al., "The Impact of Basic Nitrogen Compounds on the Oxidative and Thermal Stability of Base Oils in Automotive and Industrial Applications," SAE Technical Paper 981405, 1998, https://doi.org/10.4271/981405.
Pages:
12
Abstract:
Nitrogen compounds present in mineral base oils at low concentrations are known to accelerate oil oxidation and to reduce the useful lifetime of formulated lubricants. Both Partial Least Squares and Neural Network analyses were employed to establish correlations between base oil composition and performance in industry standard thermal stability and oxidation tests. These correlations show that the “basic nitrogen” (BN) content of a base oil is a very important compositional feature determining its ultimate performance in a formulated lubricant which may be especially important for API Group II and III base oils that are relatively free of other pro-oxidants and naturally occurring, sulfur-containing antioxidants. The effect of BN species was also studied using model nitrogen compounds and it was confirmed that the pro-oxidant effect appears only in “basic” nitrogen containing molecules involving pyridine and quinoline derivatives.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2010-10-25
Technical Paper / Journal Article
2010-10-25
Training / Education
2018-05-03
Video
2017-03-26
Article
2017-03-13
Technical Paper / Journal Article
2010-05-05