Lubrication of rotary compressors of LPG hydrocarbon gases or liquefied natural gases LNG such as: - methane, ethane, ethylene, propane, propylene, butane, butylene, butadiene, as well as chemical gases such as: - ammonia, vinyl chloride monomer. Lubrication of refrigerating compressors using LPG gases as refrigerant fluid, in the oil and petrochemical industries (refinery, drilling platform, recompression post, liquification plant).
