Abstract: The light white oil and transformer oil blending components were produced by the process consisting of hydrodewaxing，hydrofinishing and rectification. The results showed that the light white oil with aromatic content less than 0.2% and color of 30, which meets the requirements of NB/SH/T 0913—2015 standards and the blending components with low aromatic content, which meets the requirements of GB 2536—2011 standards of T-40℃ (universal) transformer oil can be produced by diesel hydrotreating.

Key words: light white oil, transformer oil, hydrodewaxing, hydrofinishing