Does the color of the lubricant base oil darken after being stored in the tank for 3 days?
Thread Content
Does the color of the lubricant base oil darken after being stored in the tank for 3 days? Thank you all
I used to work in the lubricant hydrogenation workshop. From what I know, the base oil produced through lubricant hydrogenation has excellent oxidation stability, and there should not be significant changes in its color. However, the stability of the base oil produced by the old production method is likely to be lower; after all, the oil produced by that method is inherently more yellow in color.
I’m talking about the hydrogenation of lubricating oils. Our process involves using hydrocracked tail oil for hydrogenation, and our distillation unit is of the atmospheric and vacuum type. The color intensity of these oils is generally quite good; however, sometimes it can increase
If the oxidation stability is poor, check the reaction temperature in the post-refining reactor, as well as whether the catalyst has become partially deactivated.
After being stored in the lubricant base oil tank for 3 days, its color should not darken; if it does, it may be due to residual oil at the bottom or oil leakage.