Used lube oil feedstock contains free and emulsified water, light hydrocarbons, metals, halogenated compounds, glycols, carbon, unsaturated hydrocarbons, polymers, asphaltenes etc. Re-refining of lube oil is an attractive recycling method regarding conservation of resources and emore...
Electric transformers perform best when the insulating oil is devoid of moisture, dissolved gases and unwanted particles. Even new oils require some treatment to limit these contents to suitable levels. Contaminated oil loses its characteristics of dielectric strengths, resistivimore...