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Process to enhance oxidation stability of base oils by analysis of olefins using ¹H NMR
Process to enhance oxidation stability of base oils by analysis of olefins using ¹H NMR
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机译:通过1 H NMR分析烯烃来提高基础油的氧化稳定性的方法
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摘要
A process for producing a lubricating base oil having high oxidation stability, wherein the feed used to prepare the lubricating base oil contains at least 5 wt. % olefms, said process comprising (a) determining the weight percent of olefins present in the feed by means of 1H NMR; (b) hydroprocessing the feed under hydroprocessing conditions selected to reduce the amount of olefins present to a target value which has been pre-determined by means of 1H NMR to produce a lubricating base oil having the desired oxidation stability; and (c) collecting a lubricating base oil having the selected oxidation stability from the hydroprocessing zone.
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