Method of analyzing basestocks for low temperature properties

Details Method of analyzing basestocks for low temperature properties Method of analyzing basestocks for low temperature properties

G - Physics

01

N

G01N 30/46 (2006.01) G01N 11/00 (2006.01) G01N 33/28 (2006.01)

Patent

CA 2586483

The invention relates to a method for analyzing a lubricating oil. The method utilizes 2-dimensional gas chromatography (2D GC) to determine the amounts of paraffins and isoparaffins in the oil. The compositional information thus obtained is used to calculate a paraffin index correlated with formulated oil MRV.

L'invention concerne une méthode pour analyser une huile de lubrification. Cette méthode fait appel à une chromatographie gazeuse bidimensionnelle (2D GC) pour déterminer les quantités de paraffines et d'isoparaffines contenues dans cette huile. Les informations de composition ainsi obtenues sont utilisées pour calculer un indice de paraffine et l'indice de paraffine corrélée, à l'aide d'un miniviscosimètre rotatif d'huile formulée.

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