SAE Technical Paper Series 1998
DOI: 10.4271/981405
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The Impact of Basic Nitrogen Compounds on the Oxidative and Thermal Stability of Base Oils in Automotive and Industrial Applications

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Cited by 11 publications
(9 citation statements)
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“…Because the chemical composition of a base oil directly determines its physical and chemical performance characteristics, statistical and neural network modeling methods have been developed that utilize compositional data to predict properties such as oxidation lifetime and engine test performance. [1][2][3] Such structure-property correlations can be used to design better lubricants and to optimize refining processes.…”
Section: Introductionmentioning
confidence: 99%
“…Because the chemical composition of a base oil directly determines its physical and chemical performance characteristics, statistical and neural network modeling methods have been developed that utilize compositional data to predict properties such as oxidation lifetime and engine test performance. [1][2][3] Such structure-property correlations can be used to design better lubricants and to optimize refining processes.…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, BO-40 also has a higher nitrogen content (375 ppm) (Table ). Basic nitrogen compounds, which are present in the base oil as nitrogen heterocyclics, are known to accelerate oil oxidation and reduce the oxidation life of formulated products . Earlier studies using NMR-derived parameters 19 have shown that most of these nitrogen-containing heterocyclics are mainly attached to polyaromatic- and naphthenoaromatic-type structures present in the base oil matrix.…”
Section: Resultsmentioning
confidence: 99%
“…Yoshida, Stipanovic et al 41 used high-pressure differential scanning calorimetry (DSC) to measure base oil oxidative stability and correlated results with ASTM D 943. Klaus et al 42 developed the Penn State Microoxidation Test to evaluate oxidative and thermal stability of base oils, and correlate lubricant degradation processes with those observed in automotive and diesel engine tests.…”
Section: Oxidation Testsmentioning
confidence: 99%
“…Sulfur did not correlate at the low levels found in the hydroprocessed lubes. Stipanovic et al 41 used base oil compositional analysis, physical property measurements, and engine test results to develop predictive models based on partial least squares (PLS) and neural networks analyses. Multi-ring naphthene and polyaromatic compounds, thioaromatics, basic nitrogen compounds, and ''resins'' increase oxidation, thermal decomposition, and deposit formation.…”
Section: Correlation Of Base Oil Composition and Lubricantmentioning
confidence: 99%