This invention discloses a method for removing micro-water from polar lubricating oil based on the
synergy of
electric field polarization and
crystal field. The method includes: first, filtering the polar lubricating oil containing
trace amounts of water to remove mechanical impurities, then heating it to 25℃~35℃; then introducing it into an
electric field polarization unit, where it is polarized using an
electric field until the
dielectric constant of the lubricating oil increases by 3%~8% relative to its initial value; next, introducing it into a
crystal field unit, where it is stirred and mixed to fully contact an inorganic
crystalline particle adsorbent with a superhydrophilic surface, using the adsorbent to remove water from the oil; finally, passing it through a fine
filtration unit to remove the water-swollen inorganic
crystalline particle adsorbent, thus completing the micro-water removal of the polar lubricating oil. This invention achieves efficient and deep
dehydration of polar lubricating oil at
room temperature, with advantages such as low
energy consumption, low cost, no additive loss, and no
impact on oil performance.