What is the reason for the dark color of the oil on the line?
Thread Content
It is often found in production that the color of normal pressure side line oil or vacuum side line oil is sometimes heavier, which affects product sales. I would like to ask, is it because the oil contains more unsaturated hydrocarbons or more nitrogen elements?
Check whether the processing volume is too large, the tower load is too large, the steam injection volume is too large, the temperature is too high, the tower is flushed, etc.